diff --git a/.gitignore b/.gitignore
index a49c101..567609b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1 @@
-Makefile
-config.h
-dep
-objs
-bin
-autom4te.cache
-config.log
-config.status
+build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..9092575
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.0)
+project(tl-parser)
+
+set(SOURCES crc32.h crc32.c tlc.c tl-parser.c tl-parser.h tl-parser-tree.h tl-tl.h portable_endian.h)
+
+if (WIN32)
+	list(APPEND SOURCES wingetopt.c wingetopt.h)
+endif()
+if (MSVC)
+	set(CMAKE_EXE_LINKER_FLAGS "/SUBSYSTEM:CONSOLE")
+endif()
+
+add_executable(${PROJECT_NAME} ${SOURCES})
+if (NOT WIN32)
+	target_link_libraries(${PROJECT_NAME} m)
+endif()
diff --git a/Makefile.in b/Makefile.in
deleted file mode 100644
index 446f49a..0000000
--- a/Makefile.in
+++ /dev/null
@@ -1,48 +0,0 @@
-srcdir=@srcdir@
-
-CFLAGS=@CFLAGS@
-LDFLAGS=@LDFLAGS@
-CPPFLAGS=@CPPFLAGS@
-COMPILE_FLAGS=${CFLAGS} ${CPFLAGS} ${CPPFLAGS} ${DEFS} -Wall -Wextra -Werror -Wno-deprecated-declarations -fno-strict-aliasing -fno-omit-frame-pointer -ggdb -Wno-unused-parameter -fPIC
-
-EXTRA_LIBS=@LIBS@
-LOCAL_LDFLAGS=-rdynamic -ggdb ${EXTRA_LIBS}
-LINK_FLAGS=${LDFLAGS} ${LOCAL_LDFLAGS}
-
-DEP=dep
-EXE=bin
-OBJ=objs
-DIR_LIST=${DEP} ${EXE} ${OBJ}
-
-EXE_LIST=${EXE}/tl-parser
-
-OBJECTS=${OBJ}/tl-parser.o ${OBJ}/tlc.o
-
-DEPENDENCE=$(subst ${OBJ}/,${DEP}/,$(patsubst %.o,%.d,${OBJECTS}))
-DEPENDENCE_LIST=${DEPENDENCE}
-
-INCLUDE=-I. -I${srcdir}
-CC=@CC@
-
-.SUFFIXES:
-
-.SUFFIXES: .c .h .o
-
-all: ${EXE_LIST} ${DIR_LIST} ${LIB_LIST}
-create_dirs_and_headers: ${DIR_LIST}
-create_dirs: ${DIR_LIST}
-
-${DIR_LIST}:
-	@test -d $@ || mkdir -p $@
-
--include ${DEPENDENCE_LIST}
-
-${OBJECTS}: ${OBJ}/%.o: ${srcdir}/%.c | create_dirs_and_headers
-	${CC} ${INCLUDE} ${COMPILE_FLAGS} -c -MP -MD -MF ${DEP}/$*.d -MQ ${OBJ}/$*.o -o $@ $<
-
-${EXE}/tl-parser: ${OBJECTS}
-	${CC} $^ ${LINK_FLAGS} -o $@
-
-clean:
-	rm -rf ${DIR_LIST} config.log config.status > /dev/null || echo "all clean"
-
diff --git a/config.h.in b/config.h.in
deleted file mode 100644
index 6cffe69..0000000
--- a/config.h.in
+++ /dev/null
@@ -1,96 +0,0 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-#undef HAVE_CLOCK_GETTIME
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#undef HAVE_FCNTL_H
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the `z' library (-lz). */
-#undef HAVE_LIBZ
-
-/* Define to 1 if you have the <mach/mach.h> header file. */
-#undef HAVE_MACH_MACH_H
-
-/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
-   to 0 otherwise. */
-#undef HAVE_MALLOC
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the `memset' function. */
-#undef HAVE_MEMSET
-
-/* Define to 1 if your system has a GNU libc compatible `realloc' function,
-   and to 0 otherwise. */
-#undef HAVE_REALLOC
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the `strdup' function. */
-#undef HAVE_STRDUP
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#undef HAVE_SYS_TIME_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to 1 if the system has the `__builtin_bswap32' built-in function */
-#undef HAVE___BUILTIN_BSWAP32
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Define to `__inline__' or `__inline' if that's what the C compiler
-   calls it, or to nothing if 'inline' is not supported under any name.  */
-#ifndef __cplusplus
-#undef inline
-#endif
-
-/* Define to rpl_malloc if the replacement function should be used. */
-#undef malloc
-
-/* Define to rpl_realloc if the replacement function should be used. */
-#undef realloc
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-#undef size_t
diff --git a/configure b/configure
deleted file mode 100755
index 6ba3c41..0000000
--- a/configure
+++ /dev/null
@@ -1,5018 +0,0 @@
-#! /bin/sh
-# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for tl-parser 1.0.
-#
-#
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
-#
-#
-# This configure script is free software; the Free Software Foundation
-# gives unlimited permission to copy, distribute and modify it.
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
-# Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
-case $0 in #((
-  *[\\/]* ) as_myself=$0 ;;
-  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-  done
-IFS=$as_save_IFS
-
-     ;;
-esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
-# in which case we are not to be found in the path.
-if test "x$as_myself" = x; then
-  as_myself=$0
-fi
-if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  exit 1
-fi
-
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Use a proper internal environment variable to ensure we don't fall
-  # into an infinite loop, continuously re-executing ourselves.
-  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
-    _as_can_reexec=no; export _as_can_reexec;
-    # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
-# works around shells that cannot unset nonexistent variables.
-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
-  *v*x* | *x*v* ) as_opts=-vx ;;
-  *v* ) as_opts=-v ;;
-  *x* ) as_opts=-x ;;
-  * ) as_opts= ;;
-esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
-# Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
-  fi
-  # We don't want this to propagate to other subprocesses.
-          { _as_can_reexec=; unset _as_can_reexec;}
-if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '\${1+\"\$@\"}'='\"\$@\"'
-  setopt NO_GLOB_SUBST
-else
-  case \`(set -o) 2>/dev/null\` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-"
-  as_required="as_fn_return () { (exit \$1); }
-as_fn_success () { as_fn_return 0; }
-as_fn_failure () { as_fn_return 1; }
-as_fn_ret_success () { return 0; }
-as_fn_ret_failure () { return 1; }
-
-exitcode=0
-as_fn_success || { exitcode=1; echo as_fn_success failed.; }
-as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
-as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
-as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
-
-else
-  exitcode=1; echo positional parameters were not saved.
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-test x\$exitcode = x0 || exit 1
-test -x / || exit 1"
-  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
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-  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
-  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
-test \$(( 1 + 1 )) = 2 || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
-  as_have_required=yes
-else
-  as_have_required=no
-fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
-
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-as_found=false
-for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  as_found=:
-  case $as_dir in #(
-	 /*)
-	   for as_base in sh bash ksh sh5; do
-	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
-	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  break 2
-fi
-fi
-	   done;;
-       esac
-  as_found=false
-done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
-IFS=$as_save_IFS
-
-
-      if test "x$CONFIG_SHELL" != x; then :
-  export CONFIG_SHELL
-             # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
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-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
-  *v*x* | *x*v* ) as_opts=-vx ;;
-  *v* ) as_opts=-v ;;
-  *x* ) as_opts=-x ;;
-  * ) as_opts= ;;
-esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
-# Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-exit 255
-fi
-
-    if test x$as_have_required = xno; then :
-  $as_echo "$0: This script requires a shell more modern than all"
-  $as_echo "$0: the shells that I found on your system."
-  if test x${ZSH_VERSION+set} = xset ; then
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
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-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
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-$0: message. Then install a modern shell, or manually run
-$0: the script under such a shell if you do have one."
-  fi
-  exit 1
-fi
-fi
-fi
-SHELL=${CONFIG_SHELL-/bin/sh}
-export SHELL
-# Unset more variables known to interfere with behavior of common tools.
-CLICOLOR_FORCE= GREP_OPTIONS=
-unset CLICOLOR_FORCE GREP_OPTIONS
-
-## --------------------- ##
-## M4sh Shell Functions. ##
-## --------------------- ##
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
-as_fn_unset ()
-{
-  { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-
-# as_fn_mkdir_p
-# -------------
-# Create "$as_dir" as a directory, including parents if necessary.
-as_fn_mkdir_p ()
-{
-
-  case $as_dir in #(
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-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
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-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
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-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
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-	  /^X\(\/\/\)$/{
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-	    q
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-# as_fn_executable_p FILE
-# -----------------------
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-  test -f "$1" && test -x "$1"
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-  {
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-if expr a : '\(a\)' >/dev/null 2>&1 &&
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-  as_expr=false
-fi
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-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
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-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
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-fi
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-if $ac_cache_corrupted; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
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-fi
-## -------------------- ##
-## Main body of script. ##
-## -------------------- ##
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-
-# ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_gcc_builtin.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_GCC_BUILTIN(BUILTIN)
-#
-# DESCRIPTION
-#
-#   This macro checks if the compiler supports one of GCC's built-in
-#   functions; many other compilers also provide those same built-ins.
-#
-#   The BUILTIN parameter is the name of the built-in function.
-#
-#   If BUILTIN is supported define HAVE_<BUILTIN>. Keep in mind that since
-#   builtins usually start with two underscores they will be copied over
-#   into the HAVE_<BUILTIN> definition (e.g. HAVE___BUILTIN_EXPECT for
-#   __builtin_expect()).
-#
-#   The macro caches its result in the ax_cv_have_<BUILTIN> variable (e.g.
-#   ax_cv_have___builtin_expect).
-#
-#   The macro currently supports the following built-in functions:
-#
-#    __builtin_assume_aligned
-#    __builtin_bswap32
-#    __builtin_bswap64
-#    __builtin_choose_expr
-#    __builtin___clear_cache
-#    __builtin_clrsb
-#    __builtin_clrsbl
-#    __builtin_clrsbll
-#    __builtin_clz
-#    __builtin_clzl
-#    __builtin_clzll
-#    __builtin_complex
-#    __builtin_constant_p
-#    __builtin_ctz
-#    __builtin_ctzl
-#    __builtin_ctzll
-#    __builtin_expect
-#    __builtin_ffs
-#    __builtin_ffsl
-#    __builtin_ffsll
-#    __builtin_fpclassify
-#    __builtin_huge_val
-#    __builtin_huge_valf
-#    __builtin_huge_vall
-#    __builtin_inf
-#    __builtin_infd128
-#    __builtin_infd32
-#    __builtin_infd64
-#    __builtin_inff
-#    __builtin_infl
-#    __builtin_isinf_sign
-#    __builtin_nan
-#    __builtin_nand128
-#    __builtin_nand32
-#    __builtin_nand64
-#    __builtin_nanf
-#    __builtin_nanl
-#    __builtin_nans
-#    __builtin_nansf
-#    __builtin_nansl
-#    __builtin_object_size
-#    __builtin_parity
-#    __builtin_parityl
-#    __builtin_parityll
-#    __builtin_popcount
-#    __builtin_popcountl
-#    __builtin_popcountll
-#    __builtin_powi
-#    __builtin_powif
-#    __builtin_powil
-#    __builtin_prefetch
-#    __builtin_trap
-#    __builtin_types_compatible_p
-#    __builtin_unreachable
-#
-#   Unsuppored built-ins will be tested with an empty parameter set and the
-#   result of the check might be wrong or meaningless so use with care.
-#
-# LICENSE
-#
-#   Copyright (c) 2013 Gabriele Svelto <gabriele.svelto@gmail.com>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved.  This file is offered as-is, without any
-#   warranty.
-
-#serial 2
-
-
-
-
-ac_config_headers="$ac_config_headers config.h"
-
-
-# Checks for programs.
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-if test -n "$ac_tool_prefix"; then
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-set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-  if test -n "$CC"; then
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-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
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-
-
-fi
-if test -z "$ac_cv_prog_CC"; then
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
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-esac
-    CC=$ac_ct_CC
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-else
-  CC="$ac_cv_prog_CC"
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-
-if test -z "$CC"; then
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-set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-  if test -n "$CC"; then
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-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
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-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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-  fi
-done
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-IFS=$as_save_IFS
-
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-CC=$ac_cv_prog_CC
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-
-
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-if test -z "$CC"; then
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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-
-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-  if test -n "$CC"; then
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-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
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-{
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- return ferror (f) || fclose (f) != 0;
-
-  ;
-  return 0;
-}
-_ACEOF
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
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-{
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-
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
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-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
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-int
-main ()
-{
-#ifndef __GNUC__
-       choke me
-#endif
-
-  ;
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-_ACEOF
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-  ac_compiler_gnu=no
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-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
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-
-int
-main ()
-{
-
-  ;
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-_ACEOF
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-  CFLAGS=""
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-
-int
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-{
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-
-int
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-{
-
-  ;
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-   ac_c_werror_flag=$ac_save_c_werror_flag
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
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-{
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-{
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-
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-
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-
-int test (int i, double x);
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-char **argv;
-int
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-{
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-
-fi
-# AC_CACHE_VAL
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-  xno)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
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-
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-
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-
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-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
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-extern "C"
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-char crc32_combine ();
-int
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-{
-return crc32_combine ();
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-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_z_crc32_combine=yes
-else
-  ac_cv_lib_z_crc32_combine=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
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-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_crc32_combine" >&5
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-#define HAVE_LIBZ 1
-_ACEOF
-
-  LIBS="-lz $LIBS"
-
-fi
-
-
-# Checks for header files.
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
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-for ac_c_preproc_warn_flag in '' yes
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-  # On the NeXT, cc -E runs the code through the compiler's parser,
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-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
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-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
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-_ACEOF
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-rm -f conftest.err conftest.i conftest.$ac_ext
-
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-
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-ac_preproc_ok=false
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-  # On the NeXT, cc -E runs the code through the compiler's parser,
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-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
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-		     Syntax error
-_ACEOF
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-
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-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
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-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
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-  # Passes both tests.
-ac_preproc_ok=:
-break
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-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
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-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
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-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
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-      as_fn_executable_p "$ac_path_GREP" || continue
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-case `"$ac_path_GREP" --version 2>&1` in
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-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
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-  ac_count=0
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-      ac_path_GREP_max=$ac_count
-    fi
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-  done
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-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
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-  fi
-else
-  ac_cv_path_GREP=$GREP
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-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-$as_echo "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
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-if ${ac_cv_path_EGREP+:} false; then :
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-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
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-  ac_count=0
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-    # 10*(2^10) chars as input seems more than enough
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-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
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-      $ac_path_EGREP_found && break 3
-    done
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-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
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-  fi
-else
-  ac_cv_path_EGREP=$EGREP
-fi
-
-   fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
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- EGREP="$ac_cv_path_EGREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
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-if ${ac_cv_header_stdc+:} false; then :
-  $as_echo_n "(cached) " >&6
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-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
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-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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-if test $ac_cv_header_stdc = yes; then
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-/* end confdefs.h.  */
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-_ACEOF
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-  $EGREP "memchr" >/dev/null 2>&1; then :
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-else
-  ac_cv_header_stdc=no
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-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
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-/* end confdefs.h.  */
-#include <stdlib.h>
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-_ACEOF
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-  $EGREP "free" >/dev/null 2>&1; then :
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-rm -f conftest*
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-fi
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-if test $ac_cv_header_stdc = yes; then
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-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
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-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
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-# define ISLOWER(c) \
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-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
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-{
-  int i;
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-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
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-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
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-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
-fi
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-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
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-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
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-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-for ac_header in fcntl.h mach/mach.h stdlib.h string.h sys/time.h unistd.h
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-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
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-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-# Checks for typedefs, structures, and compiler characteristics.
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-$as_echo_n "checking for inline... " >&6; }
-if ${ac_cv_c_inline+:} false; then :
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-  ac_cv_c_inline=no
-for ac_kw in inline __inline__ __inline; do
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-/* end confdefs.h.  */
-#ifndef __cplusplus
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-static $ac_kw foo_t static_foo () {return 0; }
-$ac_kw foo_t foo () {return 0; }
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-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
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-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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-done
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
-$as_echo "$ac_cv_c_inline" >&6; }
-
-case $ac_cv_c_inline in
-  inline | yes) ;;
-  *)
-    case $ac_cv_c_inline in
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-      *) ac_val=$ac_cv_c_inline;;
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-#ifndef __cplusplus
-#define inline $ac_val
-#endif
-_ACEOF
-    ;;
-esac
-
-ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
-if test "x$ac_cv_type_size_t" = xyes; then :
-
-else
-
-cat >>confdefs.h <<_ACEOF
-#define size_t unsigned int
-_ACEOF
-
-fi
-
-
-# Checks for library functions.
-for ac_header in stdlib.h
-do :
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-if test "x$ac_cv_header_stdlib_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_STDLIB_H 1
-_ACEOF
-
-fi
-
-done
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible malloc" >&5
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-if ${ac_cv_func_malloc_0_nonnull+:} false; then :
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-else
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-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#if defined STDC_HEADERS || defined HAVE_STDLIB_H
-# include <stdlib.h>
-#else
-char *malloc ();
-#endif
-
-int
-main ()
-{
-return ! malloc (0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
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-else
-  ac_cv_func_malloc_0_nonnull=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
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-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_malloc_0_nonnull" >&5
-$as_echo "$ac_cv_func_malloc_0_nonnull" >&6; }
-if test $ac_cv_func_malloc_0_nonnull = yes; then :
-
-$as_echo "#define HAVE_MALLOC 1" >>confdefs.h
-
-else
-  $as_echo "#define HAVE_MALLOC 0" >>confdefs.h
-
-   case " $LIBOBJS " in
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-esac
-
-
-$as_echo "#define malloc rpl_malloc" >>confdefs.h
-
-fi
-
-
-for ac_header in stdlib.h
-do :
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-if test "x$ac_cv_header_stdlib_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_STDLIB_H 1
-_ACEOF
-
-fi
-
-done
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible realloc" >&5
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-if ${ac_cv_func_realloc_0_nonnull+:} false; then :
-  $as_echo_n "(cached) " >&6
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-/* end confdefs.h.  */
-#if defined STDC_HEADERS || defined HAVE_STDLIB_H
-# include <stdlib.h>
-#else
-char *realloc ();
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-
-int
-main ()
-{
-return ! realloc (0, 0);
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-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
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-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
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-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_realloc_0_nonnull" >&5
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-$as_echo "#define HAVE_REALLOC 1" >>confdefs.h
-
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-   case " $LIBOBJS " in
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-
-$as_echo "#define realloc rpl_realloc" >>confdefs.h
-
-fi
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-
-for ac_func in clock_gettime memset strdup
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_have___builtin_bswap32" >&5
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-cat >>confdefs.h <<_ACEOF
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-fi
-
-
-
-
-ac_config_files="$ac_config_files Makefile"
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-    as_echo_n='/usr/ucb/echo -n'
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-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
-# Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
-case $0 in #((
-  *[\\/]* ) as_myself=$0 ;;
-  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-  done
-IFS=$as_save_IFS
-
-     ;;
-esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
-# in which case we are not to be found in the path.
-if test "x$as_myself" = x; then
-  as_myself=$0
-fi
-if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  exit 1
-fi
-
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
-# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
-# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with STATUS, using 1 if that was 0.
-as_fn_error ()
-{
-  as_status=$1; test $as_status -eq 0 && as_status=1
-  if test "$4"; then
-    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
-  fi
-  $as_echo "$as_me: error: $2" >&2
-  as_fn_exit $as_status
-} # as_fn_error
-
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
-as_fn_unset ()
-{
-  { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
-# as_fn_append VAR VALUE
-# ----------------------
-# Append the text in VALUE to the end of the definition contained in VAR. Take
-# advantage of any shell optimizations that allow amortized linear growth over
-# repeated appends, instead of the typical quadratic growth present in naive
-# implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
-  eval 'as_fn_append ()
-  {
-    eval $1+=\$2
-  }'
-else
-  as_fn_append ()
-  {
-    eval $1=\$$1\$2
-  }
-fi # as_fn_append
-
-# as_fn_arith ARG...
-# ------------------
-# Perform arithmetic evaluation on the ARGs, and store the result in the
-# global $as_val. Take advantage of shells that can avoid forks. The arguments
-# must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
-  eval 'as_fn_arith ()
-  {
-    as_val=$(( $* ))
-  }'
-else
-  as_fn_arith ()
-  {
-    as_val=`expr "$@" || test $? -eq 1`
-  }
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-
-
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
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-else
-  as_basename=false
-fi
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-rm -f conf$$ conf$$.exe conf$$.file
-if test -d conf$$.dir; then
-  rm -f conf$$.dir/conf$$.file
-else
-  rm -f conf$$.dir
-  mkdir conf$$.dir 2>/dev/null
-fi
-if (echo >conf$$.file) 2>/dev/null; then
-  if ln -s conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s='ln -s'
-    # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
-    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -pR'
-  elif ln conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s=ln
-  else
-    as_ln_s='cp -pR'
-  fi
-else
-  as_ln_s='cp -pR'
-fi
-rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
-rmdir conf$$.dir 2>/dev/null
-
-
-# as_fn_mkdir_p
-# -------------
-# Create "$as_dir" as a directory, including parents if necessary.
-as_fn_mkdir_p ()
-{
-
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
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-  test -d "$as_dir" || eval $as_mkdir_p || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
-
-
-} # as_fn_mkdir_p
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p='mkdir -p "$as_dir"'
-else
-  test -d ./-p && rmdir ./-p
-  as_mkdir_p=false
-fi
-
-
-# as_fn_executable_p FILE
-# -----------------------
-# Test if FILE is an executable regular file.
-as_fn_executable_p ()
-{
-  test -f "$1" && test -x "$1"
-} # as_fn_executable_p
-as_test_x='test -x'
-as_executable_p=as_fn_executable_p
-
-# Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
-
-# Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
-
-
-exec 6>&1
-## ----------------------------------- ##
-## Main body of $CONFIG_STATUS script. ##
-## ----------------------------------- ##
-_ASEOF
-test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-# Save the log message, to keep $0 and so on meaningful, and to
-# report actual input values of CONFIG_FILES etc. instead of their
-# values after options handling.
-ac_log="
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-on `(hostname || uname -n) 2>/dev/null | sed 1q`
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-case $ac_config_files in *"
-"*) set x $ac_config_files; shift; ac_config_files=$*;;
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-case $ac_config_headers in *"
-"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
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-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-# Files that config.status was made for.
-config_files="$ac_config_files"
-config_headers="$ac_config_headers"
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-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
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-
-Usage: $0 [OPTION]... [TAG]...
-
-  -h, --help       print this help, then exit
-  -V, --version    print version number and configuration settings, then exit
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-Configuration files:
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-Configuration headers:
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-Report bugs to the package provider."
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-_ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
-ac_cs_version="\\
-tl-parser config.status 1.0
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-Copyright (C) 2012 Free Software Foundation, Inc.
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-ac_pwd='$ac_pwd'
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-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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-ac_need_defaults=:
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-    ac_option=`expr "X$1" : 'X\([^=]*\)='`
-    ac_optarg=
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-    ac_option=$1
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-    ac_shift=shift
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-  case $ac_option in
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-ac_configure_extra_args=
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-if $ac_cs_silent; then
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-_ACEOF
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-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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-{
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-{
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-# Set up the scripts for CONFIG_FILES section.
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-
-ac_cr=`echo X | tr X '\015'`
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-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
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-    key = field[i]
-    keylen = length(key)
-    if (S_is_set[key]) {
-      value = S[key]
-      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
-      len += length(value) + length(field[++i])
-      substed = 1
-    } else
-      len += 1 + keylen
-  }
-
-  print line
-}
-
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
-  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
-else
-  cat
-fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
-  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
-_ACEOF
-
-# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
-# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
-# trailing colons and then remove the whole line if VPATH becomes empty
-# (actually we leave an empty line to preserve line numbers).
-if test "x$srcdir" = x.; then
-  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
-h
-s///
-s/^/:/
-s/[	 ]*$/:/
-s/:\$(srcdir):/:/g
-s/:\${srcdir}:/:/g
-s/:@srcdir@:/:/g
-s/^:*//
-s/:*$//
-x
-s/\(=[	 ]*\).*/\1/
-G
-s/\n//
-s/^[^=]*=[	 ]*$//
-}'
-fi
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-fi # test -n "$CONFIG_FILES"
-
-# Set up the scripts for CONFIG_HEADERS section.
-# No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
-if test -n "$CONFIG_HEADERS"; then
-cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
-BEGIN {
-_ACEOF
-
-# Transform confdefs.h into an awk script `defines.awk', embedded as
-# here-document in config.status, that substitutes the proper values into
-# config.h.in to produce config.h.
-
-# Create a delimiter string that does not exist in confdefs.h, to ease
-# handling of long lines.
-ac_delim='%!_!# '
-for ac_last_try in false false :; do
-  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
-  if test -z "$ac_tt"; then
-    break
-  elif $ac_last_try; then
-    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
-  else
-    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
-  fi
-done
-
-# For the awk script, D is an array of macro values keyed by name,
-# likewise P contains macro parameters if any.  Preserve backslash
-# newline sequences.
-
-ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
-sed -n '
-s/.\{148\}/&'"$ac_delim"'/g
-t rset
-:rset
-s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
-t def
-d
-:def
-s/\\$//
-t bsnl
-s/["\\]/\\&/g
-s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
-D["\1"]=" \3"/p
-s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
-d
-:bsnl
-s/["\\]/\\&/g
-s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
-D["\1"]=" \3\\\\\\n"\\/p
-t cont
-s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
-t cont
-d
-:cont
-n
-s/.\{148\}/&'"$ac_delim"'/g
-t clear
-:clear
-s/\\$//
-t bsnlc
-s/["\\]/\\&/g; s/^/"/; s/$/"/p
-d
-:bsnlc
-s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
-b cont
-' <confdefs.h | sed '
-s/'"$ac_delim"'/"\\\
-"/g' >>$CONFIG_STATUS || ac_write_fail=1
-
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  for (key in D) D_is_set[key] = 1
-  FS = ""
-}
-/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
-  line = \$ 0
-  split(line, arg, " ")
-  if (arg[1] == "#") {
-    defundef = arg[2]
-    mac1 = arg[3]
-  } else {
-    defundef = substr(arg[1], 2)
-    mac1 = arg[2]
-  }
-  split(mac1, mac2, "(") #)
-  macro = mac2[1]
-  prefix = substr(line, 1, index(line, defundef) - 1)
-  if (D_is_set[macro]) {
-    # Preserve the white space surrounding the "#".
-    print prefix "define", macro P[macro] D[macro]
-    next
-  } else {
-    # Replace #undef with comments.  This is necessary, for example,
-    # in the case of _POSIX_SOURCE, which is predefined and required
-    # on some systems where configure will not decide to define it.
-    if (defundef == "undef") {
-      print "/*", prefix defundef, macro, "*/"
-      next
-    }
-  }
-}
-{ print }
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
-fi # test -n "$CONFIG_HEADERS"
-
-
-eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    "
-shift
-for ac_tag
-do
-  case $ac_tag in
-  :[FHLC]) ac_mode=$ac_tag; continue;;
-  esac
-  case $ac_mode$ac_tag in
-  :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
-  :[FH]-) ac_tag=-:-;;
-  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
-  esac
-  ac_save_IFS=$IFS
-  IFS=:
-  set x $ac_tag
-  IFS=$ac_save_IFS
-  shift
-  ac_file=$1
-  shift
-
-  case $ac_mode in
-  :L) ac_source=$1;;
-  :[FH])
-    ac_file_inputs=
-    for ac_f
-    do
-      case $ac_f in
-      -) ac_f="$ac_tmp/stdin";;
-      *) # Look for the file first in the build tree, then in the source tree
-	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
-	 test -f "$ac_f" ||
-	   case $ac_f in
-	   [\\/$]*) false;;
-	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
-	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
-      esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      as_fn_append ac_file_inputs " '$ac_f'"
-    done
-
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
-    # use $as_me), people would be surprised to read:
-    #    /* config.h.  Generated by config.status.  */
-    configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
-	`' by configure.'
-    if test x"$ac_file" != x-; then
-      configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
-    fi
-    # Neutralize special characters interpreted by sed in replacement strings.
-    case $configure_input in #(
-    *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
-       sed 's/[\\\\&|]/\\\\&/g'`;; #(
-    *) ac_sed_conf_input=$configure_input;;
-    esac
-
-    case $ac_tag in
-    *:-:* | *:-) cat >"$ac_tmp/stdin" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
-    esac
-    ;;
-  esac
-
-  ac_dir=`$as_dirname -- "$ac_file" ||
-$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$ac_file" : 'X\(//\)[^/]' \| \
-	 X"$ac_file" : 'X\(//\)$' \| \
-	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-  as_dir="$ac_dir"; as_fn_mkdir_p
-  ac_builddir=.
-
-case "$ac_dir" in
-.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
-*)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
-  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
-  case $ac_top_builddir_sub in
-  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
-  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
-  esac ;;
-esac
-ac_abs_top_builddir=$ac_pwd
-ac_abs_builddir=$ac_pwd$ac_dir_suffix
-# for backward compatibility:
-ac_top_builddir=$ac_top_build_prefix
-
-case $srcdir in
-  .)  # We are building in place.
-    ac_srcdir=.
-    ac_top_srcdir=$ac_top_builddir_sub
-    ac_abs_top_srcdir=$ac_pwd ;;
-  [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
-  *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
-esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
-
-
-  case $ac_mode in
-  :F)
-  #
-  # CONFIG_FILE
-  #
-
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-# If the template does not know about datarootdir, expand it.
-# FIXME: This hack should be removed a few years after 2.60.
-ac_datarootdir_hack=; ac_datarootdir_seen=
-ac_sed_dataroot='
-/datarootdir/ {
-  p
-  q
-}
-/@datadir@/p
-/@docdir@/p
-/@infodir@/p
-/@localedir@/p
-/@mandir@/p'
-case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
-*datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
-_ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  ac_datarootdir_hack='
-  s&@datadir@&$datadir&g
-  s&@docdir@&$docdir&g
-  s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
-  s&@mandir@&$mandir&g
-  s&\\\${datarootdir}&$datarootdir&g' ;;
-esac
-_ACEOF
-
-# Neutralize VPATH when `$srcdir' = `.'.
-# Shell code in configure.ac might set extrasub.
-# FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_sed_extra="$ac_vpsub
-$extrasub
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-:t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
-s|@configure_input@|$ac_sed_conf_input|;t t
-s&@top_builddir@&$ac_top_builddir_sub&;t t
-s&@top_build_prefix@&$ac_top_build_prefix&;t t
-s&@srcdir@&$ac_srcdir&;t t
-s&@abs_srcdir@&$ac_abs_srcdir&;t t
-s&@top_srcdir@&$ac_top_srcdir&;t t
-s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
-s&@builddir@&$ac_builddir&;t t
-s&@abs_builddir@&$ac_abs_builddir&;t t
-s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
-$ac_datarootdir_hack
-"
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
-  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-
-test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
-      "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&2;}
-
-  rm -f "$ac_tmp/stdin"
-  case $ac_file in
-  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
-  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
-  esac \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
- ;;
-  :H)
-  #
-  # CONFIG_HEADER
-  #
-  if test x"$ac_file" != x-; then
-    {
-      $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
-    } >"$ac_tmp/config.h" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
-$as_echo "$as_me: $ac_file is unchanged" >&6;}
-    else
-      rm -f "$ac_file"
-      mv "$ac_tmp/config.h" "$ac_file" \
-	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    fi
-  else
-    $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
-      || as_fn_error $? "could not create -" "$LINENO" 5
-  fi
- ;;
-
-
-  esac
-
-done # for ac_tag
-
-
-as_fn_exit 0
-_ACEOF
-ac_clean_files=$ac_clean_files_save
-
-test $ac_write_fail = 0 ||
-  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded.  So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status.  When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
-  ac_cs_success=:
-  ac_config_status_args=
-  test "$silent" = yes &&
-    ac_config_status_args="$ac_config_status_args --quiet"
-  exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
-  exec 5>>config.log
-  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
-  # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
diff --git a/configure.ac b/configure.ac
deleted file mode 100644
index 82d1c6b..0000000
--- a/configure.ac
+++ /dev/null
@@ -1,33 +0,0 @@
-#                                               -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
-
-AC_PREREQ([2.69])
-AC_INIT([tl-parser], [1.0])
-
-m4_include([m4-ax_gcc_builtin.m4])
-
-AC_CONFIG_HEADERS([config.h])
-
-# Checks for programs.
-AC_PROG_CC
-
-# Checks for libraries.
-# We only need the symbol 'crc32'. Stay on the safe side by checking a more specific symbol.
-AC_CHECK_LIB([z], [crc32_combine])
-
-# Checks for header files.
-AC_CHECK_HEADERS([fcntl.h mach/mach.h stdlib.h string.h sys/time.h unistd.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_INLINE
-AC_TYPE_SIZE_T
-
-# Checks for library functions.
-AC_FUNC_MALLOC
-AC_FUNC_REALLOC
-AC_CHECK_FUNCS([clock_gettime memset strdup])
-
-AX_GCC_BUILTIN(__builtin_bswap32)
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
diff --git a/crc32.c b/crc32.c
new file mode 100644
index 0000000..c73f643
--- /dev/null
+++ b/crc32.c
@@ -0,0 +1,663 @@
+/*
+    This file is part of VK/KittenPHP-DB-Engine Library.
+
+    VK/KittenPHP-DB-Engine Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    VK/KittenPHP-DB-Engine Library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with VK/KittenPHP-DB-Engine Library.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2009-2012 Vkontakte Ltd
+              2009-2012 Nikolai Durov
+              2009-2012 Andrei Lopatin
+                   2012 Anton Maydell
+*/
+
+#include <stdlib.h>
+#include <math.h>
+#include <assert.h>
+
+#include "crc32.h"
+
+static inline unsigned _bswap32(unsigned x) {
+  return ((x << 24) & 0xff000000 ) |
+  ((x << 8) & 0x00ff0000 ) |
+  ((x >> 8) & 0x0000ff00 ) |
+  ((x >> 24) & 0x000000ff );
+}
+
+unsigned int crc32_table[256] =
+{
+  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
+  0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
+  0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+  0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
+  0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
+  0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+  0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
+  0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
+  0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+  0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+  0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
+  0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+  0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
+  0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
+  0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
+  0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
+  0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+  0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
+  0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+  0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+  0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
+  0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
+  0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+  0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
+  0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
+  0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+  0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
+  0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
+  0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
+  0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
+  0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+  0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
+  0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
+  0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+  0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
+  0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
+  0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+  0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+  0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
+  0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+  0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
+  0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
+  0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
+  0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
+  0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+  0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
+  0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+  0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+  0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
+  0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
+  0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+  0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
+  0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
+  0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+  0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
+  0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
+  0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
+  0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
+  0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+  0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+};
+
+unsigned int crc32_table2[256] = 
+{
+  0x00000000, 0x191b3141, 0x32366282, 0x2b2d53c3,
+  0x646cc504, 0x7d77f445, 0x565aa786, 0x4f4196c7,
+  0xc8d98a08, 0xd1c2bb49, 0xfaefe88a, 0xe3f4d9cb,
+  0xacb54f0c, 0xb5ae7e4d, 0x9e832d8e, 0x87981ccf,
+  0x4ac21251, 0x53d92310, 0x78f470d3, 0x61ef4192,
+  0x2eaed755, 0x37b5e614, 0x1c98b5d7, 0x05838496,
+  0x821b9859, 0x9b00a918, 0xb02dfadb, 0xa936cb9a,
+  0xe6775d5d, 0xff6c6c1c, 0xd4413fdf, 0xcd5a0e9e,
+  0x958424a2, 0x8c9f15e3, 0xa7b24620, 0xbea97761,
+  0xf1e8e1a6, 0xe8f3d0e7, 0xc3de8324, 0xdac5b265,
+  0x5d5daeaa, 0x44469feb, 0x6f6bcc28, 0x7670fd69,
+  0x39316bae, 0x202a5aef, 0x0b07092c, 0x121c386d,
+  0xdf4636f3, 0xc65d07b2, 0xed705471, 0xf46b6530,
+  0xbb2af3f7, 0xa231c2b6, 0x891c9175, 0x9007a034,
+  0x179fbcfb, 0x0e848dba, 0x25a9de79, 0x3cb2ef38,
+  0x73f379ff, 0x6ae848be, 0x41c51b7d, 0x58de2a3c,
+  0xf0794f05, 0xe9627e44, 0xc24f2d87, 0xdb541cc6,
+  0x94158a01, 0x8d0ebb40, 0xa623e883, 0xbf38d9c2,
+  0x38a0c50d, 0x21bbf44c, 0x0a96a78f, 0x138d96ce,
+  0x5ccc0009, 0x45d73148, 0x6efa628b, 0x77e153ca,
+  0xbabb5d54, 0xa3a06c15, 0x888d3fd6, 0x91960e97,
+  0xded79850, 0xc7cca911, 0xece1fad2, 0xf5facb93,
+  0x7262d75c, 0x6b79e61d, 0x4054b5de, 0x594f849f,
+  0x160e1258, 0x0f152319, 0x243870da, 0x3d23419b,
+  0x65fd6ba7, 0x7ce65ae6, 0x57cb0925, 0x4ed03864,
+  0x0191aea3, 0x188a9fe2, 0x33a7cc21, 0x2abcfd60,
+  0xad24e1af, 0xb43fd0ee, 0x9f12832d, 0x8609b26c,
+  0xc94824ab, 0xd05315ea, 0xfb7e4629, 0xe2657768,
+  0x2f3f79f6, 0x362448b7, 0x1d091b74, 0x04122a35,
+  0x4b53bcf2, 0x52488db3, 0x7965de70, 0x607eef31,
+  0xe7e6f3fe, 0xfefdc2bf, 0xd5d0917c, 0xcccba03d,
+  0x838a36fa, 0x9a9107bb, 0xb1bc5478, 0xa8a76539,
+  0x3b83984b, 0x2298a90a, 0x09b5fac9, 0x10aecb88,
+  0x5fef5d4f, 0x46f46c0e, 0x6dd93fcd, 0x74c20e8c,
+  0xf35a1243, 0xea412302, 0xc16c70c1, 0xd8774180,
+  0x9736d747, 0x8e2de606, 0xa500b5c5, 0xbc1b8484,
+  0x71418a1a, 0x685abb5b, 0x4377e898, 0x5a6cd9d9,
+  0x152d4f1e, 0x0c367e5f, 0x271b2d9c, 0x3e001cdd,
+  0xb9980012, 0xa0833153, 0x8bae6290, 0x92b553d1,
+  0xddf4c516, 0xc4eff457, 0xefc2a794, 0xf6d996d5,
+  0xae07bce9, 0xb71c8da8, 0x9c31de6b, 0x852aef2a,
+  0xca6b79ed, 0xd37048ac, 0xf85d1b6f, 0xe1462a2e,
+  0x66de36e1, 0x7fc507a0, 0x54e85463, 0x4df36522,
+  0x02b2f3e5, 0x1ba9c2a4, 0x30849167, 0x299fa026,
+  0xe4c5aeb8, 0xfdde9ff9, 0xd6f3cc3a, 0xcfe8fd7b,
+  0x80a96bbc, 0x99b25afd, 0xb29f093e, 0xab84387f,
+  0x2c1c24b0, 0x350715f1, 0x1e2a4632, 0x07317773,
+  0x4870e1b4, 0x516bd0f5, 0x7a468336, 0x635db277,
+  0xcbfad74e, 0xd2e1e60f, 0xf9ccb5cc, 0xe0d7848d,
+  0xaf96124a, 0xb68d230b, 0x9da070c8, 0x84bb4189,
+  0x03235d46, 0x1a386c07, 0x31153fc4, 0x280e0e85,
+  0x674f9842, 0x7e54a903, 0x5579fac0, 0x4c62cb81,
+  0x8138c51f, 0x9823f45e, 0xb30ea79d, 0xaa1596dc,
+  0xe554001b, 0xfc4f315a, 0xd7626299, 0xce7953d8,
+  0x49e14f17, 0x50fa7e56, 0x7bd72d95, 0x62cc1cd4,
+  0x2d8d8a13, 0x3496bb52, 0x1fbbe891, 0x06a0d9d0,
+  0x5e7ef3ec, 0x4765c2ad, 0x6c48916e, 0x7553a02f,
+  0x3a1236e8, 0x230907a9, 0x0824546a, 0x113f652b,
+  0x96a779e4, 0x8fbc48a5, 0xa4911b66, 0xbd8a2a27,
+  0xf2cbbce0, 0xebd08da1, 0xc0fdde62, 0xd9e6ef23,
+  0x14bce1bd, 0x0da7d0fc, 0x268a833f, 0x3f91b27e,
+  0x70d024b9, 0x69cb15f8, 0x42e6463b, 0x5bfd777a,
+  0xdc656bb5, 0xc57e5af4, 0xee530937, 0xf7483876,
+  0xb809aeb1, 0xa1129ff0, 0x8a3fcc33, 0x9324fd72,
+};
+
+unsigned int crc32_table1[256] = 
+{
+  0x00000000, 0x01c26a37, 0x0384d46e, 0x0246be59,
+  0x0709a8dc, 0x06cbc2eb, 0x048d7cb2, 0x054f1685,
+  0x0e1351b8, 0x0fd13b8f, 0x0d9785d6, 0x0c55efe1,
+  0x091af964, 0x08d89353, 0x0a9e2d0a, 0x0b5c473d,
+  0x1c26a370, 0x1de4c947, 0x1fa2771e, 0x1e601d29,
+  0x1b2f0bac, 0x1aed619b, 0x18abdfc2, 0x1969b5f5,
+  0x1235f2c8, 0x13f798ff, 0x11b126a6, 0x10734c91,
+  0x153c5a14, 0x14fe3023, 0x16b88e7a, 0x177ae44d,
+  0x384d46e0, 0x398f2cd7, 0x3bc9928e, 0x3a0bf8b9,
+  0x3f44ee3c, 0x3e86840b, 0x3cc03a52, 0x3d025065,
+  0x365e1758, 0x379c7d6f, 0x35dac336, 0x3418a901,
+  0x3157bf84, 0x3095d5b3, 0x32d36bea, 0x331101dd,
+  0x246be590, 0x25a98fa7, 0x27ef31fe, 0x262d5bc9,
+  0x23624d4c, 0x22a0277b, 0x20e69922, 0x2124f315,
+  0x2a78b428, 0x2bbade1f, 0x29fc6046, 0x283e0a71,
+  0x2d711cf4, 0x2cb376c3, 0x2ef5c89a, 0x2f37a2ad,
+  0x709a8dc0, 0x7158e7f7, 0x731e59ae, 0x72dc3399,
+  0x7793251c, 0x76514f2b, 0x7417f172, 0x75d59b45,
+  0x7e89dc78, 0x7f4bb64f, 0x7d0d0816, 0x7ccf6221,
+  0x798074a4, 0x78421e93, 0x7a04a0ca, 0x7bc6cafd,
+  0x6cbc2eb0, 0x6d7e4487, 0x6f38fade, 0x6efa90e9,
+  0x6bb5866c, 0x6a77ec5b, 0x68315202, 0x69f33835,
+  0x62af7f08, 0x636d153f, 0x612bab66, 0x60e9c151,
+  0x65a6d7d4, 0x6464bde3, 0x662203ba, 0x67e0698d,
+  0x48d7cb20, 0x4915a117, 0x4b531f4e, 0x4a917579,
+  0x4fde63fc, 0x4e1c09cb, 0x4c5ab792, 0x4d98dda5,
+  0x46c49a98, 0x4706f0af, 0x45404ef6, 0x448224c1,
+  0x41cd3244, 0x400f5873, 0x4249e62a, 0x438b8c1d,
+  0x54f16850, 0x55330267, 0x5775bc3e, 0x56b7d609,
+  0x53f8c08c, 0x523aaabb, 0x507c14e2, 0x51be7ed5,
+  0x5ae239e8, 0x5b2053df, 0x5966ed86, 0x58a487b1,
+  0x5deb9134, 0x5c29fb03, 0x5e6f455a, 0x5fad2f6d,
+  0xe1351b80, 0xe0f771b7, 0xe2b1cfee, 0xe373a5d9,
+  0xe63cb35c, 0xe7fed96b, 0xe5b86732, 0xe47a0d05,
+  0xef264a38, 0xeee4200f, 0xeca29e56, 0xed60f461,
+  0xe82fe2e4, 0xe9ed88d3, 0xebab368a, 0xea695cbd,
+  0xfd13b8f0, 0xfcd1d2c7, 0xfe976c9e, 0xff5506a9,
+  0xfa1a102c, 0xfbd87a1b, 0xf99ec442, 0xf85cae75,
+  0xf300e948, 0xf2c2837f, 0xf0843d26, 0xf1465711,
+  0xf4094194, 0xf5cb2ba3, 0xf78d95fa, 0xf64fffcd,
+  0xd9785d60, 0xd8ba3757, 0xdafc890e, 0xdb3ee339,
+  0xde71f5bc, 0xdfb39f8b, 0xddf521d2, 0xdc374be5,
+  0xd76b0cd8, 0xd6a966ef, 0xd4efd8b6, 0xd52db281,
+  0xd062a404, 0xd1a0ce33, 0xd3e6706a, 0xd2241a5d,
+  0xc55efe10, 0xc49c9427, 0xc6da2a7e, 0xc7184049,
+  0xc25756cc, 0xc3953cfb, 0xc1d382a2, 0xc011e895,
+  0xcb4dafa8, 0xca8fc59f, 0xc8c97bc6, 0xc90b11f1,
+  0xcc440774, 0xcd866d43, 0xcfc0d31a, 0xce02b92d,
+  0x91af9640, 0x906dfc77, 0x922b422e, 0x93e92819,
+  0x96a63e9c, 0x976454ab, 0x9522eaf2, 0x94e080c5,
+  0x9fbcc7f8, 0x9e7eadcf, 0x9c381396, 0x9dfa79a1,
+  0x98b56f24, 0x99770513, 0x9b31bb4a, 0x9af3d17d,
+  0x8d893530, 0x8c4b5f07, 0x8e0de15e, 0x8fcf8b69,
+  0x8a809dec, 0x8b42f7db, 0x89044982, 0x88c623b5,
+  0x839a6488, 0x82580ebf, 0x801eb0e6, 0x81dcdad1,
+  0x8493cc54, 0x8551a663, 0x8717183a, 0x86d5720d,
+  0xa9e2d0a0, 0xa820ba97, 0xaa6604ce, 0xaba46ef9,
+  0xaeeb787c, 0xaf29124b, 0xad6fac12, 0xacadc625,
+  0xa7f18118, 0xa633eb2f, 0xa4755576, 0xa5b73f41,
+  0xa0f829c4, 0xa13a43f3, 0xa37cfdaa, 0xa2be979d,
+  0xb5c473d0, 0xb40619e7, 0xb640a7be, 0xb782cd89,
+  0xb2cddb0c, 0xb30fb13b, 0xb1490f62, 0xb08b6555,
+  0xbbd72268, 0xba15485f, 0xb853f606, 0xb9919c31,
+  0xbcde8ab4, 0xbd1ce083, 0xbf5a5eda, 0xbe9834ed,
+};
+
+unsigned int crc32_table0[256] = {
+  0x00000000, 0xb8bc6765, 0xaa09c88b, 0x12b5afee,
+  0x8f629757, 0x37def032, 0x256b5fdc, 0x9dd738b9,
+  0xc5b428ef, 0x7d084f8a, 0x6fbde064, 0xd7018701,
+  0x4ad6bfb8, 0xf26ad8dd, 0xe0df7733, 0x58631056,
+  0x5019579f, 0xe8a530fa, 0xfa109f14, 0x42acf871,
+  0xdf7bc0c8, 0x67c7a7ad, 0x75720843, 0xcdce6f26,
+  0x95ad7f70, 0x2d111815, 0x3fa4b7fb, 0x8718d09e,
+  0x1acfe827, 0xa2738f42, 0xb0c620ac, 0x087a47c9,
+  0xa032af3e, 0x188ec85b, 0x0a3b67b5, 0xb28700d0,
+  0x2f503869, 0x97ec5f0c, 0x8559f0e2, 0x3de59787,
+  0x658687d1, 0xdd3ae0b4, 0xcf8f4f5a, 0x7733283f,
+  0xeae41086, 0x525877e3, 0x40edd80d, 0xf851bf68,
+  0xf02bf8a1, 0x48979fc4, 0x5a22302a, 0xe29e574f,
+  0x7f496ff6, 0xc7f50893, 0xd540a77d, 0x6dfcc018,
+  0x359fd04e, 0x8d23b72b, 0x9f9618c5, 0x272a7fa0,
+  0xbafd4719, 0x0241207c, 0x10f48f92, 0xa848e8f7,
+  0x9b14583d, 0x23a83f58, 0x311d90b6, 0x89a1f7d3,
+  0x1476cf6a, 0xaccaa80f, 0xbe7f07e1, 0x06c36084,
+  0x5ea070d2, 0xe61c17b7, 0xf4a9b859, 0x4c15df3c,
+  0xd1c2e785, 0x697e80e0, 0x7bcb2f0e, 0xc377486b,
+  0xcb0d0fa2, 0x73b168c7, 0x6104c729, 0xd9b8a04c,
+  0x446f98f5, 0xfcd3ff90, 0xee66507e, 0x56da371b,
+  0x0eb9274d, 0xb6054028, 0xa4b0efc6, 0x1c0c88a3,
+  0x81dbb01a, 0x3967d77f, 0x2bd27891, 0x936e1ff4,
+  0x3b26f703, 0x839a9066, 0x912f3f88, 0x299358ed,
+  0xb4446054, 0x0cf80731, 0x1e4da8df, 0xa6f1cfba,
+  0xfe92dfec, 0x462eb889, 0x549b1767, 0xec277002,
+  0x71f048bb, 0xc94c2fde, 0xdbf98030, 0x6345e755,
+  0x6b3fa09c, 0xd383c7f9, 0xc1366817, 0x798a0f72,
+  0xe45d37cb, 0x5ce150ae, 0x4e54ff40, 0xf6e89825,
+  0xae8b8873, 0x1637ef16, 0x048240f8, 0xbc3e279d,
+  0x21e91f24, 0x99557841, 0x8be0d7af, 0x335cb0ca,
+  0xed59b63b, 0x55e5d15e, 0x47507eb0, 0xffec19d5,
+  0x623b216c, 0xda874609, 0xc832e9e7, 0x708e8e82,
+  0x28ed9ed4, 0x9051f9b1, 0x82e4565f, 0x3a58313a,
+  0xa78f0983, 0x1f336ee6, 0x0d86c108, 0xb53aa66d,
+  0xbd40e1a4, 0x05fc86c1, 0x1749292f, 0xaff54e4a,
+  0x322276f3, 0x8a9e1196, 0x982bbe78, 0x2097d91d,
+  0x78f4c94b, 0xc048ae2e, 0xd2fd01c0, 0x6a4166a5,
+  0xf7965e1c, 0x4f2a3979, 0x5d9f9697, 0xe523f1f2,
+  0x4d6b1905, 0xf5d77e60, 0xe762d18e, 0x5fdeb6eb,
+  0xc2098e52, 0x7ab5e937, 0x680046d9, 0xd0bc21bc,
+  0x88df31ea, 0x3063568f, 0x22d6f961, 0x9a6a9e04,
+  0x07bda6bd, 0xbf01c1d8, 0xadb46e36, 0x15080953,
+  0x1d724e9a, 0xa5ce29ff, 0xb77b8611, 0x0fc7e174,
+  0x9210d9cd, 0x2aacbea8, 0x38191146, 0x80a57623,
+  0xd8c66675, 0x607a0110, 0x72cfaefe, 0xca73c99b,
+  0x57a4f122, 0xef189647, 0xfdad39a9, 0x45115ecc,
+  0x764dee06, 0xcef18963, 0xdc44268d, 0x64f841e8,
+  0xf92f7951, 0x41931e34, 0x5326b1da, 0xeb9ad6bf,
+  0xb3f9c6e9, 0x0b45a18c, 0x19f00e62, 0xa14c6907,
+  0x3c9b51be, 0x842736db, 0x96929935, 0x2e2efe50,
+  0x2654b999, 0x9ee8defc, 0x8c5d7112, 0x34e11677,
+  0xa9362ece, 0x118a49ab, 0x033fe645, 0xbb838120,
+  0xe3e09176, 0x5b5cf613, 0x49e959fd, 0xf1553e98,
+  0x6c820621, 0xd43e6144, 0xc68bceaa, 0x7e37a9cf,
+  0xd67f4138, 0x6ec3265d, 0x7c7689b3, 0xc4caeed6,
+  0x591dd66f, 0xe1a1b10a, 0xf3141ee4, 0x4ba87981,
+  0x13cb69d7, 0xab770eb2, 0xb9c2a15c, 0x017ec639,
+  0x9ca9fe80, 0x241599e5, 0x36a0360b, 0x8e1c516e,
+  0x866616a7, 0x3eda71c2, 0x2c6fde2c, 0x94d3b949,
+  0x090481f0, 0xb1b8e695, 0xa30d497b, 0x1bb12e1e,
+  0x43d23e48, 0xfb6e592d, 0xe9dbf6c3, 0x516791a6,
+  0xccb0a91f, 0x740cce7a, 0x66b96194, 0xde0506f1,
+};
+
+unsigned crc32_partial_old (const void *data, int len, unsigned crc) {
+  const char *p = data;
+  for (; len > 0; len--) {
+    crc = crc32_table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
+  }
+  return crc;    
+}
+
+/*
+unsigned crc32_partial_fast (const void *data, int len, unsigned crc) {
+  const int *p = (const int *) data;
+  int x;
+  for (x = (len >> 2); x > 0; x--) {
+    crc ^= *p++;
+    crc = crc32_table0[crc & 0xff] ^ crc32_table1[(crc & 0xff00) >> 8] ^ crc32_table2[(crc & 0xff0000) >> 16] ^ crc32_table[crc >> 24];
+  }
+  const char *q = (const char *) p;
+  switch (len & 3) {
+  case 3:
+    crc = crc32_table[(crc ^ *q++) & 0xff] ^ (crc >> 8);
+  case 2:
+    crc = crc32_table[(crc ^ *q++) & 0xff] ^ (crc >> 8);
+  case 1:
+    crc = crc32_table[(crc ^ *q++) & 0xff] ^ (crc >> 8);
+  }
+  return crc;
+}
+*/
+
+unsigned crc32_partial (const void *data, int len, unsigned crc) {
+  const int *p = (const int *) data;
+  int x;
+#define DO_ONE(v) crc ^= v; crc = crc32_table0[crc & 0xff] ^ crc32_table1[(crc & 0xff00) >> 8] ^ crc32_table2[(crc & 0xff0000) >> 16] ^ crc32_table[crc >> 24];
+#define DO_FOUR(p) DO_ONE((p)[0]); DO_ONE((p)[1]); DO_ONE((p)[2]); DO_ONE((p)[3]);
+
+  for (x = (len >> 5); x > 0; x--) {
+    DO_FOUR (p);
+    DO_FOUR (p + 4);
+    p += 8;
+  }
+  if (len & 16) {
+    DO_FOUR (p);
+    p += 4;
+  }
+  if (len & 8) {
+    DO_ONE (p[0]);
+    DO_ONE (p[1]);
+    p += 2;
+  }
+  if (len & 4) {
+    DO_ONE (*p++);
+  }
+  /*
+  for (x = (len >> 2) & 7; x > 0; x--) {
+    DO_ONE (*p++);
+  }
+  */
+#undef DO_ONE
+#undef DO_FOUR
+  const char *q = (const char *) p;
+  if (len & 2) {
+    crc = crc32_table[(crc ^ q[0]) & 0xff] ^ (crc >> 8);
+    crc = crc32_table[(crc ^ q[1]) & 0xff] ^ (crc >> 8);
+    q += 2;
+  }
+  if (len & 1) {
+    crc = crc32_table[(crc ^ *q++) & 0xff] ^ (crc >> 8);
+  }
+  return crc;
+}
+
+unsigned compute_crc32 (const void *data, int len) {
+  return crc32_partial (data, len, -1) ^ -1;
+}
+
+unsigned long long crc64_table[256] = {
+ 0x0000000000000000LL, 0xb32e4cbe03a75f6fLL, 0xf4843657a840a05bLL, 0x47aa7ae9abe7ff34LL,
+ 0x7bd0c384ff8f5e33LL, 0xc8fe8f3afc28015cLL, 0x8f54f5d357cffe68LL, 0x3c7ab96d5468a107LL,
+ 0xf7a18709ff1ebc66LL, 0x448fcbb7fcb9e309LL, 0x0325b15e575e1c3dLL, 0xb00bfde054f94352LL,
+ 0x8c71448d0091e255LL, 0x3f5f08330336bd3aLL, 0x78f572daa8d1420eLL, 0xcbdb3e64ab761d61LL,
+ 0x7d9ba13851336649LL, 0xceb5ed8652943926LL, 0x891f976ff973c612LL, 0x3a31dbd1fad4997dLL,
+ 0x064b62bcaebc387aLL, 0xb5652e02ad1b6715LL, 0xf2cf54eb06fc9821LL, 0x41e11855055bc74eLL,
+ 0x8a3a2631ae2dda2fLL, 0x39146a8fad8a8540LL, 0x7ebe1066066d7a74LL, 0xcd905cd805ca251bLL,
+ 0xf1eae5b551a2841cLL, 0x42c4a90b5205db73LL, 0x056ed3e2f9e22447LL, 0xb6409f5cfa457b28LL,
+ 0xfb374270a266cc92LL, 0x48190ecea1c193fdLL, 0x0fb374270a266cc9LL, 0xbc9d3899098133a6LL,
+ 0x80e781f45de992a1LL, 0x33c9cd4a5e4ecdceLL, 0x7463b7a3f5a932faLL, 0xc74dfb1df60e6d95LL,
+ 0x0c96c5795d7870f4LL, 0xbfb889c75edf2f9bLL, 0xf812f32ef538d0afLL, 0x4b3cbf90f69f8fc0LL,
+ 0x774606fda2f72ec7LL, 0xc4684a43a15071a8LL, 0x83c230aa0ab78e9cLL, 0x30ec7c140910d1f3LL,
+ 0x86ace348f355aadbLL, 0x3582aff6f0f2f5b4LL, 0x7228d51f5b150a80LL, 0xc10699a158b255efLL,
+ 0xfd7c20cc0cdaf4e8LL, 0x4e526c720f7dab87LL, 0x09f8169ba49a54b3LL, 0xbad65a25a73d0bdcLL,
+ 0x710d64410c4b16bdLL, 0xc22328ff0fec49d2LL, 0x85895216a40bb6e6LL, 0x36a71ea8a7ace989LL,
+ 0x0adda7c5f3c4488eLL, 0xb9f3eb7bf06317e1LL, 0xfe5991925b84e8d5LL, 0x4d77dd2c5823b7baLL,
+ 0x64b62bcaebc387a1LL, 0xd7986774e864d8ceLL, 0x90321d9d438327faLL, 0x231c512340247895LL,
+ 0x1f66e84e144cd992LL, 0xac48a4f017eb86fdLL, 0xebe2de19bc0c79c9LL, 0x58cc92a7bfab26a6LL,
+ 0x9317acc314dd3bc7LL, 0x2039e07d177a64a8LL, 0x67939a94bc9d9b9cLL, 0xd4bdd62abf3ac4f3LL,
+ 0xe8c76f47eb5265f4LL, 0x5be923f9e8f53a9bLL, 0x1c4359104312c5afLL, 0xaf6d15ae40b59ac0LL,
+ 0x192d8af2baf0e1e8LL, 0xaa03c64cb957be87LL, 0xeda9bca512b041b3LL, 0x5e87f01b11171edcLL,
+ 0x62fd4976457fbfdbLL, 0xd1d305c846d8e0b4LL, 0x96797f21ed3f1f80LL, 0x2557339fee9840efLL,
+ 0xee8c0dfb45ee5d8eLL, 0x5da24145464902e1LL, 0x1a083bacedaefdd5LL, 0xa9267712ee09a2baLL,
+ 0x955cce7fba6103bdLL, 0x267282c1b9c65cd2LL, 0x61d8f8281221a3e6LL, 0xd2f6b4961186fc89LL,
+ 0x9f8169ba49a54b33LL, 0x2caf25044a02145cLL, 0x6b055fede1e5eb68LL, 0xd82b1353e242b407LL,
+ 0xe451aa3eb62a1500LL, 0x577fe680b58d4a6fLL, 0x10d59c691e6ab55bLL, 0xa3fbd0d71dcdea34LL,
+ 0x6820eeb3b6bbf755LL, 0xdb0ea20db51ca83aLL, 0x9ca4d8e41efb570eLL, 0x2f8a945a1d5c0861LL,
+ 0x13f02d374934a966LL, 0xa0de61894a93f609LL, 0xe7741b60e174093dLL, 0x545a57dee2d35652LL,
+ 0xe21ac88218962d7aLL, 0x5134843c1b317215LL, 0x169efed5b0d68d21LL, 0xa5b0b26bb371d24eLL,
+ 0x99ca0b06e7197349LL, 0x2ae447b8e4be2c26LL, 0x6d4e3d514f59d312LL, 0xde6071ef4cfe8c7dLL,
+ 0x15bb4f8be788911cLL, 0xa6950335e42fce73LL, 0xe13f79dc4fc83147LL, 0x521135624c6f6e28LL,
+ 0x6e6b8c0f1807cf2fLL, 0xdd45c0b11ba09040LL, 0x9aefba58b0476f74LL, 0x29c1f6e6b3e0301bLL,
+ 0xc96c5795d7870f42LL, 0x7a421b2bd420502dLL, 0x3de861c27fc7af19LL, 0x8ec62d7c7c60f076LL,
+ 0xb2bc941128085171LL, 0x0192d8af2baf0e1eLL, 0x4638a2468048f12aLL, 0xf516eef883efae45LL,
+ 0x3ecdd09c2899b324LL, 0x8de39c222b3eec4bLL, 0xca49e6cb80d9137fLL, 0x7967aa75837e4c10LL,
+ 0x451d1318d716ed17LL, 0xf6335fa6d4b1b278LL, 0xb199254f7f564d4cLL, 0x02b769f17cf11223LL,
+ 0xb4f7f6ad86b4690bLL, 0x07d9ba1385133664LL, 0x4073c0fa2ef4c950LL, 0xf35d8c442d53963fLL,
+ 0xcf273529793b3738LL, 0x7c0979977a9c6857LL, 0x3ba3037ed17b9763LL, 0x888d4fc0d2dcc80cLL,
+ 0x435671a479aad56dLL, 0xf0783d1a7a0d8a02LL, 0xb7d247f3d1ea7536LL, 0x04fc0b4dd24d2a59LL,
+ 0x3886b22086258b5eLL, 0x8ba8fe9e8582d431LL, 0xcc0284772e652b05LL, 0x7f2cc8c92dc2746aLL,
+ 0x325b15e575e1c3d0LL, 0x8175595b76469cbfLL, 0xc6df23b2dda1638bLL, 0x75f16f0cde063ce4LL,
+ 0x498bd6618a6e9de3LL, 0xfaa59adf89c9c28cLL, 0xbd0fe036222e3db8LL, 0x0e21ac88218962d7LL,
+ 0xc5fa92ec8aff7fb6LL, 0x76d4de52895820d9LL, 0x317ea4bb22bfdfedLL, 0x8250e80521188082LL,
+ 0xbe2a516875702185LL, 0x0d041dd676d77eeaLL, 0x4aae673fdd3081deLL, 0xf9802b81de97deb1LL,
+ 0x4fc0b4dd24d2a599LL, 0xfceef8632775faf6LL, 0xbb44828a8c9205c2LL, 0x086ace348f355aadLL,
+ 0x34107759db5dfbaaLL, 0x873e3be7d8faa4c5LL, 0xc094410e731d5bf1LL, 0x73ba0db070ba049eLL,
+ 0xb86133d4dbcc19ffLL, 0x0b4f7f6ad86b4690LL, 0x4ce50583738cb9a4LL, 0xffcb493d702be6cbLL,
+ 0xc3b1f050244347ccLL, 0x709fbcee27e418a3LL, 0x3735c6078c03e797LL, 0x841b8ab98fa4b8f8LL,
+ 0xadda7c5f3c4488e3LL, 0x1ef430e13fe3d78cLL, 0x595e4a08940428b8LL, 0xea7006b697a377d7LL,
+ 0xd60abfdbc3cbd6d0LL, 0x6524f365c06c89bfLL, 0x228e898c6b8b768bLL, 0x91a0c532682c29e4LL,
+ 0x5a7bfb56c35a3485LL, 0xe955b7e8c0fd6beaLL, 0xaeffcd016b1a94deLL, 0x1dd181bf68bdcbb1LL,
+ 0x21ab38d23cd56ab6LL, 0x9285746c3f7235d9LL, 0xd52f0e859495caedLL, 0x6601423b97329582LL,
+ 0xd041dd676d77eeaaLL, 0x636f91d96ed0b1c5LL, 0x24c5eb30c5374ef1LL, 0x97eba78ec690119eLL,
+ 0xab911ee392f8b099LL, 0x18bf525d915feff6LL, 0x5f1528b43ab810c2LL, 0xec3b640a391f4fadLL,
+ 0x27e05a6e926952ccLL, 0x94ce16d091ce0da3LL, 0xd3646c393a29f297LL, 0x604a2087398eadf8LL,
+ 0x5c3099ea6de60cffLL, 0xef1ed5546e415390LL, 0xa8b4afbdc5a6aca4LL, 0x1b9ae303c601f3cbLL,
+ 0x56ed3e2f9e224471LL, 0xe5c372919d851b1eLL, 0xa26908783662e42aLL, 0x114744c635c5bb45LL,
+ 0x2d3dfdab61ad1a42LL, 0x9e13b115620a452dLL, 0xd9b9cbfcc9edba19LL, 0x6a978742ca4ae576LL,
+ 0xa14cb926613cf817LL, 0x1262f598629ba778LL, 0x55c88f71c97c584cLL, 0xe6e6c3cfcadb0723LL,
+ 0xda9c7aa29eb3a624LL, 0x69b2361c9d14f94bLL, 0x2e184cf536f3067fLL, 0x9d36004b35545910LL,
+ 0x2b769f17cf112238LL, 0x9858d3a9ccb67d57LL, 0xdff2a94067518263LL, 0x6cdce5fe64f6dd0cLL,
+ 0x50a65c93309e7c0bLL, 0xe388102d33392364LL, 0xa4226ac498dedc50LL, 0x170c267a9b79833fLL,
+ 0xdcd7181e300f9e5eLL, 0x6ff954a033a8c131LL, 0x28532e49984f3e05LL, 0x9b7d62f79be8616aLL,
+ 0xa707db9acf80c06dLL, 0x14299724cc279f02LL, 0x5383edcd67c06036LL, 0xe0ada17364673f59LL
+};
+
+unsigned long long crc64_partial (const void *data, int len, unsigned long long crc) {
+  const char *p = data;
+  for (; len > 0; len--) {
+    crc = crc64_table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
+  }
+  return crc;    
+}
+
+unsigned long long crc64 (const void *data, int len) {
+  return crc64_partial (data, len, -1LL) ^ -1LL;
+}
+
+static unsigned gf32_matrix_times (unsigned *matrix, unsigned vector) {
+  unsigned sum = 0;
+  while (vector) {
+    if (vector & 1) {
+      sum ^= *matrix;
+    }
+    vector >>= 1;
+    matrix++;
+  }
+  return sum;
+}
+
+static void gf32_matrix_square (unsigned *square, unsigned *matrix) {
+  int n = 0;
+  do {
+    square[n] = gf32_matrix_times (matrix, matrix[n]);
+  } while (++n < 32);
+}
+
+unsigned compute_crc32_combine (unsigned crc1, unsigned crc2, int len2) {
+  assert (len2 < (1 << 29));
+  static int power_buf_initialized = 0;
+  static unsigned power_buf[1024];
+  int n;
+  /* degenerate case (also disallow negative lengths) */
+  if (len2 <= 0) {
+    return crc1;
+  }
+  if (!power_buf_initialized) {
+    power_buf[0] = 0xedb88320UL;
+    for (n = 0; n < 31; n++) {
+      power_buf[n+1] = 1U << n;
+    }
+    for (n = 1; n < 32; n++) {
+      gf32_matrix_square (power_buf + (n << 5), power_buf + ((n - 1) << 5));
+    }
+    power_buf_initialized = 1;
+  }
+
+  unsigned int *p = power_buf + 64;
+  do {
+    p += 32;
+    if (len2 & 1) {
+      crc1 = gf32_matrix_times (p, crc1);
+    }
+    len2 >>= 1;
+  } while (len2);
+  return crc1 ^ crc2;
+}
+
+
+/********************************* crc32 repair ************************/
+struct fcb_table_entry {
+  unsigned p; //zeta ^ k
+  int i;
+};
+
+static inline unsigned gf32_mod (unsigned long long r, int high_bit) {
+  int j = high_bit;
+  for (j = high_bit; j >= 32; j--) {
+    if ((1ULL << j) & r) {
+      r ^= 0x04C11DB7ULL << (j - 32);
+    }
+  }
+  return (unsigned) r;
+}
+
+static unsigned gf32_mult (unsigned a, unsigned b) {
+  int i;
+  const unsigned long long m = b;
+  unsigned long long r = 0;
+  for (i = 0; i < 32; i++) {
+    if (a & (1U << i)) {
+      r ^= m << i;
+    }
+  }
+  return gf32_mod (r, 62);
+}
+
+static unsigned gf32_shl (unsigned int a, int shift) {
+  unsigned long long r = a;
+  r <<= shift;
+  return gf32_mod (r, 31 + shift);
+}
+
+static unsigned gf32_pow (unsigned a, int k) {
+  if (!k) { return 1; }
+  unsigned x = gf32_pow (gf32_mult (a, a), k >> 1);
+  if (k & 1) {
+    x = gf32_mult (x, a);
+  }
+  return x;
+}
+
+static int cmp_fcb_table_entry (const void *a, const void *b) {
+  const struct fcb_table_entry *x = a;
+  const struct fcb_table_entry *y = b;
+  if (x->p < y->p) { return -1; }
+  if (x->p > y->p) { return  1; }
+  if (x->i < y->i) { return -1; }
+  if (x->i > y->i) { return  1; }
+  return 0;
+}
+
+#define GROUP_SWAP(x,m,s) ((x & m) << s) | ((x & (~m)) >> s)
+static unsigned revbin (unsigned x) {
+  x = GROUP_SWAP(x,0x55555555U,1);
+  x = GROUP_SWAP(x,0x33333333U,2);
+  x = GROUP_SWAP(x,0x0f0f0f0fU,4);
+  x = _bswap32 (x);
+  return x;
+}
+#undef GROUP_SWAP
+
+static inline unsigned xmult (unsigned a) {
+  unsigned r = a << 1;
+  if (a & (1U<<31)) {
+    r ^= 0x04C11DB7U;
+  }
+  return r;
+}
+
+static int find_corrupted_bit (int size, unsigned d) {
+  int i, j;
+  size += 4;
+  d = revbin (d);
+  int n = size << 3;
+  int r = (int) (sqrt (n) + 0.5);
+  struct fcb_table_entry *T = calloc (r, sizeof (struct fcb_table_entry));
+  assert (T != NULL);
+  T[0].i = 0;
+  T[0].p = 1;
+  for (i = 1; i < r; i++) {
+    T[i].i = i;
+    T[i].p = xmult (T[i-1].p);
+  }
+  assert (xmult (0x82608EDB) == 1);
+  qsort (T, r, sizeof (T[0]), cmp_fcb_table_entry);
+  unsigned q = gf32_pow (0x82608EDB, r);
+
+  unsigned A[32];
+  for (i = 0; i < 32; i++) {
+    A[i] = gf32_shl (q, i);
+  }
+
+  unsigned x = d;
+  int max_j = n / r, res = -1;
+  for (j = 0; j <= max_j; j++) {
+    int a = -1, b = r;
+    while (b - a > 1) {
+      int c = ((a + b) >> 1);
+      if (T[c].p <= x) { a = c; } else { b = c; }
+    }
+    if (a >= 0 && T[a].p == x) {
+      res = T[a].i + r * j;
+      break;
+    }
+    x = gf32_matrix_times (A, x);
+  }
+  free (T);
+  return res;
+}
+
+static int repair_bit (unsigned char *input, int l, int k) {
+  if (k < 0) {
+    return -1;
+  }
+  int idx = k >> 5, bit = k & 31, i = (l - 1) - (idx - 1) * 4;
+  while (bit >= 8) {
+    i--;
+    bit -= 8;
+  }
+  if (i < 0) {
+    return -2;
+  }
+  if (i >= l) {
+    return -3;
+  }
+  int j = 7 - bit;
+  input[i] ^= 1 << j;
+  return 0;
+}
+
+int crc32_check_and_repair (void *input, int l, unsigned *input_crc32, int force_exit) {
+  unsigned computed_crc32 = compute_crc32 (input, l);
+  const unsigned crc32_diff = computed_crc32 ^ (*input_crc32);
+  if (!crc32_diff) {
+    return 0;
+  }
+  int k = find_corrupted_bit (l, crc32_diff);
+  int r = repair_bit (input, l, k);
+  if (!r) {
+    assert (compute_crc32 (input, l) == *input_crc32);
+    return 1;
+  }
+  if (!(crc32_diff & (crc32_diff - 1))) { /* crc32_diff is power of 2 */
+    *input_crc32 = computed_crc32;
+    return 2;
+  }
+  assert (!force_exit);
+  *input_crc32 = computed_crc32;
+  return -1;
+}
diff --git a/crc32.h b/crc32.h
new file mode 100644
index 0000000..fdf8da8
--- /dev/null
+++ b/crc32.h
@@ -0,0 +1,59 @@
+/*
+    This file is part of VK/KittenPHP-DB-Engine Library.
+
+    VK/KittenPHP-DB-Engine Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    VK/KittenPHP-DB-Engine Library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with VK/KittenPHP-DB-Engine Library.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2009-2012 Vkontakte Ltd
+              2009-2012 Nikolai Durov
+              2009-2012 Andrei Lopatin
+                   2012 Anton Maydell
+*/
+
+#ifndef __CRC32_H__
+#define __CRC32_H__
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern unsigned int crc32_table[256];
+unsigned crc32_partial (const void *data, int len, unsigned crc);
+  //unsigned crc32_partial_fast (const void *data, int len, unsigned crc);
+  //unsigned crc32_partial_fastest (const void *data, int len, unsigned crc);
+unsigned compute_crc32 (const void *data, int len);
+unsigned compute_crc32_combine (unsigned crc1, unsigned crc2, int len2);
+
+extern unsigned long long crc64_table[256];
+unsigned long long crc64_partial (const void *data, int len, unsigned long long crc);
+unsigned long long crc64 (const void *data, int len);
+
+//unsigned gf32_matrix_times (unsigned *matrix, unsigned vector);
+
+/* crc32_check_and_repair returns
+   0 : Cyclic redundancy check is ok
+   1 : Cyclic redundancy check fails, but we fix one bit in input
+   2 : Cyclic redundancy check fails, but we fix one bit in input_crc32
+  -1 : Cyclic redundancy check fails, no repair possible. 
+       In this case *input_crc32 will be equal crc32 (input, l)
+
+  Case force_exit == 1 (case 1, 2: kprintf call, case -1: assert fail).
+*/
+int crc32_check_and_repair (void *input, int l, unsigned *input_crc32, int force_exit);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/m4-ax_gcc_builtin.m4 b/m4-ax_gcc_builtin.m4
deleted file mode 100644
index b28a91b..0000000
--- a/m4-ax_gcc_builtin.m4
+++ /dev/null
@@ -1,168 +0,0 @@
-# ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_gcc_builtin.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_GCC_BUILTIN(BUILTIN)
-#
-# DESCRIPTION
-#
-#   This macro checks if the compiler supports one of GCC's built-in
-#   functions; many other compilers also provide those same built-ins.
-#
-#   The BUILTIN parameter is the name of the built-in function.
-#
-#   If BUILTIN is supported define HAVE_<BUILTIN>. Keep in mind that since
-#   builtins usually start with two underscores they will be copied over
-#   into the HAVE_<BUILTIN> definition (e.g. HAVE___BUILTIN_EXPECT for
-#   __builtin_expect()).
-#
-#   The macro caches its result in the ax_cv_have_<BUILTIN> variable (e.g.
-#   ax_cv_have___builtin_expect).
-#
-#   The macro currently supports the following built-in functions:
-#
-#    __builtin_assume_aligned
-#    __builtin_bswap32
-#    __builtin_bswap64
-#    __builtin_choose_expr
-#    __builtin___clear_cache
-#    __builtin_clrsb
-#    __builtin_clrsbl
-#    __builtin_clrsbll
-#    __builtin_clz
-#    __builtin_clzl
-#    __builtin_clzll
-#    __builtin_complex
-#    __builtin_constant_p
-#    __builtin_ctz
-#    __builtin_ctzl
-#    __builtin_ctzll
-#    __builtin_expect
-#    __builtin_ffs
-#    __builtin_ffsl
-#    __builtin_ffsll
-#    __builtin_fpclassify
-#    __builtin_huge_val
-#    __builtin_huge_valf
-#    __builtin_huge_vall
-#    __builtin_inf
-#    __builtin_infd128
-#    __builtin_infd32
-#    __builtin_infd64
-#    __builtin_inff
-#    __builtin_infl
-#    __builtin_isinf_sign
-#    __builtin_nan
-#    __builtin_nand128
-#    __builtin_nand32
-#    __builtin_nand64
-#    __builtin_nanf
-#    __builtin_nanl
-#    __builtin_nans
-#    __builtin_nansf
-#    __builtin_nansl
-#    __builtin_object_size
-#    __builtin_parity
-#    __builtin_parityl
-#    __builtin_parityll
-#    __builtin_popcount
-#    __builtin_popcountl
-#    __builtin_popcountll
-#    __builtin_powi
-#    __builtin_powif
-#    __builtin_powil
-#    __builtin_prefetch
-#    __builtin_trap
-#    __builtin_types_compatible_p
-#    __builtin_unreachable
-#
-#   Unsuppored built-ins will be tested with an empty parameter set and the
-#   result of the check might be wrong or meaningless so use with care.
-#
-# LICENSE
-#
-#   Copyright (c) 2013 Gabriele Svelto <gabriele.svelto@gmail.com>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved.  This file is offered as-is, without any
-#   warranty.
-
-#serial 2
-
-AC_DEFUN([AX_GCC_BUILTIN], [
-    AS_VAR_PUSHDEF([ac_var], [ax_cv_have_$1])
-
-    AC_CACHE_CHECK([for $1], [ac_var], [
-        AC_LINK_IFELSE([AC_LANG_PROGRAM([], [
-            m4_case([$1],
-                [__builtin_assume_aligned], [$1("", 0)],
-                [__builtin_bswap32], [$1(0)],
-                [__builtin_bswap64], [$1(0)],
-                [__builtin_choose_expr], [$1(0, 0, 0)],
-                [__builtin___clear_cache], [$1("", "")],
-                [__builtin_clrsb], [$1(0)],
-                [__builtin_clrsbl], [$1(0)],
-                [__builtin_clrsbll], [$1(0)],
-                [__builtin_clz], [$1(0)],
-                [__builtin_clzl], [$1(0)],
-                [__builtin_clzll], [$1(0)],
-                [__builtin_complex], [$1(0.0, 0.0)],
-                [__builtin_constant_p], [$1(0)],
-                [__builtin_ctz], [$1(0)],
-                [__builtin_ctzl], [$1(0)],
-                [__builtin_ctzll], [$1(0)],
-                [__builtin_expect], [$1(0, 0)],
-                [__builtin_ffs], [$1(0)],
-                [__builtin_ffsl], [$1(0)],
-                [__builtin_ffsll], [$1(0)],
-                [__builtin_fpclassify], [$1(0, 1, 2, 3, 4, 0.0)],
-                [__builtin_huge_val], [$1()],
-                [__builtin_huge_valf], [$1()],
-                [__builtin_huge_vall], [$1()],
-                [__builtin_inf], [$1()],
-                [__builtin_infd128], [$1()],
-                [__builtin_infd32], [$1()],
-                [__builtin_infd64], [$1()],
-                [__builtin_inff], [$1()],
-                [__builtin_infl], [$1()],
-                [__builtin_isinf_sign], [$1(0.0)],
-                [__builtin_nan], [$1("")],
-                [__builtin_nand128], [$1("")],
-                [__builtin_nand32], [$1("")],
-                [__builtin_nand64], [$1("")],
-                [__builtin_nanf], [$1("")],
-                [__builtin_nanl], [$1("")],
-                [__builtin_nans], [$1("")],
-                [__builtin_nansf], [$1("")],
-                [__builtin_nansl], [$1("")],
-                [__builtin_object_size], [$1("", 0)],
-                [__builtin_parity], [$1(0)],
-                [__builtin_parityl], [$1(0)],
-                [__builtin_parityll], [$1(0)],
-                [__builtin_popcount], [$1(0)],
-                [__builtin_popcountl], [$1(0)],
-                [__builtin_popcountll], [$1(0)],
-                [__builtin_powi], [$1(0, 0)],
-                [__builtin_powif], [$1(0, 0)],
-                [__builtin_powil], [$1(0, 0)],
-                [__builtin_prefetch], [$1("")],
-                [__builtin_trap], [$1()],
-                [__builtin_types_compatible_p], [$1(int, int)],
-                [__builtin_unreachable], [$1()],
-                [m4_warn([syntax], [Unsupported built-in $1, the test may fail])
-                 $1()]
-            )
-            ])],
-            [AS_VAR_SET([ac_var], [yes])],
-            [AS_VAR_SET([ac_var], [no])])
-    ])
-
-    AS_IF([test yes = AS_VAR_GET([ac_var])],
-        [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1), 1,
-            [Define to 1 if the system has the `$1' built-in function])], [])
-
-    AS_VAR_POPDEF([ac_var])
-])
diff --git a/portable_endian.h b/portable_endian.h
index da0d140..b39a51e 100644
--- a/portable_endian.h
+++ b/portable_endian.h
@@ -65,7 +65,9 @@
 #elif defined(__WINDOWS__)
 
 #	include <winsock2.h>
+#   ifdef __MINGW32__
 #	include <sys/param.h>
+#   endif
 
 #	if BYTE_ORDER == LITTLE_ENDIAN
 
diff --git a/tl-parser.c b/tl-parser.c
index b021185..7f03766 100644
--- a/tl-parser.c
+++ b/tl-parser.c
@@ -23,23 +23,26 @@
 */
 
 #define _FILE_OFFSET_BITS 64
-#include "config.h"
 
+#if defined(_MSC_VER)
+#include <io.h>
+#include <stdint.h>
+#include <string.h>
+#else
 #include <unistd.h>
+#endif
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
 #include <string.h>
 #include <time.h>
-#include <zlib.h>
+#include "crc32.h"
 #include "portable_endian.h"
 #include "tl-parser-tree.h"
 #include "tl-parser.h"
 #include "tl-tl.h"
-#include "config.h"
 
 extern int verbosity;
 extern int schema_version;
@@ -63,6 +66,12 @@ int total_functions_num;
 #define talloc0(a) calloc(a,1)
 #define tstrdup(a) strdup(a)
 
+#define TL_FAIL return 0;
+#define TL_INIT(x) struct tl_combinator_tree *x = 0;
+#define TL_TRY(f,x) { struct tl_combinator_tree *_t = f; if (!_t) { TL_FAIL;} x = tl_union (x, _t); if (!x) { TL_FAIL; }}
+#define TL_ERROR(...) fprintf (stderr, __VA_ARGS__);
+#define TL_WARNING(...) fprintf (stderr, __VA_ARGS__);
+
 typedef char error_int_must_be_4_byte[(sizeof (int) == 4) ? 1 : -1];
 typedef char error_long_long_must_be_8_byte[(sizeof (long long) == 8) ? 1 : -1];
 
@@ -73,41 +82,45 @@ struct tree *tree;
 
 struct tree *tree_alloc (void) {
   struct tree *T = talloc (sizeof (*T));
-  assert (T);
+  if (!T) {
+      TL_ERROR("Out of memory: cannot allocate tree\n");
+      abort();
+  }
   memset (T, 0, sizeof (*T));
   return T;
 }
 
-#define CRC32_INITIAL crc32 (0, 0, 0)
-
 void tree_add_child (struct tree *P, struct tree *C) {
   if (P->nc == P->size) {
     void **t = talloc (sizeof (void *) * (++P->size));
+    if (!t) {
+        TL_ERROR("Out of memory: cannot allocate tree child\n");
+        abort();
+    }
     memcpy (t, P->c, sizeof (void *) * (P->size - 1));
     if (P->c) {
       tfree (P->c, sizeof (void *) * (P->size - 1));
     }
     P->c = (void *)t;
-    assert (P->c);
   }
   P->c[P->nc ++] = C;
 }
 
 void tree_delete (struct tree *T) {
-  assert (T);
-  int i;
-  for (i = 0; i < T->nc; i++) {
-    assert (T->c[i]);
-    tree_delete (T->c[i]);
-  }
-  if (T->c) {
-    tfree (T->c, sizeof (void *) * T->nc);
-  }
-  tfree (T, sizeof (*T));
+    if (T) {
+        int i;
+        for (i = 0; i < T->nc; i++) {
+            if(T->c[i]) tree_delete(T->c[i]);
+        }
+        if (T->c) {
+            tfree(T->c, sizeof(void*) * T->nc);
+        }
+        tfree(T, sizeof(*T));
+    }
 }
 
 void tree_del_child (struct tree *P) {
-  assert (P->nc);
+  if (!P->nc) abort();
   tree_delete (P->c[--P->nc]);
 }
 
@@ -185,7 +198,7 @@ void parse_error (const char *e) {
 }
 
 void tl_print_parse_error (void) {
-  fprintf (stderr, "Error near line %d pos %d: `%s`\n", last_error_line + 1, last_error_line_pos + 1, last_error);
+  TL_ERROR("Error near line %d pos %d: `%s`\n", last_error_line + 1, last_error_line_pos + 1, last_error);
 }
 
 char *parse_lex (void) {
@@ -241,8 +254,58 @@ char *parse_lex (void) {
     parse.lex.len = 1;
     parse.lex.type = lex_char;   
     return (parse.lex.ptr = p);
-  case 'a'...'z':
-  case 'A'...'Z':
+  case 'a':
+  case 'b':
+  case 'c':
+  case 'd':
+  case 'e':
+  case 'f':
+  case 'g':
+  case 'h':
+  case 'i':
+  case 'j':
+  case 'k':
+  case 'l':
+  case 'm':
+  case 'n':
+  case 'o':
+  case 'p':
+  case 'q':
+  case 'r':
+  case 's':
+  case 't':
+  case 'u':
+  case 'v':
+  case 'w':
+  case 'x':
+  case 'y':
+  case 'z':
+  case 'A':
+  case 'B':
+  case 'C':
+  case 'D':
+  case 'E':
+  case 'F':
+  case 'G':
+  case 'H':
+  case 'I':
+  case 'J':
+  case 'K':
+  case 'L':
+  case 'M':
+  case 'N':
+  case 'O':
+  case 'P':
+  case 'Q':
+  case 'R':
+  case 'S':
+  case 'T':
+  case 'U':
+  case 'V':
+  case 'W':
+  case 'X':
+  case 'Y':
+  case 'Z':
     parse.lex.flags = 0;
     if (is_uletter (curch)) {
       while (is_ident_char (nextch ()));
@@ -305,7 +368,16 @@ char *parse_lex (void) {
     parse.lex.len = parse.text + parse.pos - p;
     parse.lex.type = lex_lc_ident;
     return (parse.lex.ptr = p);
-  case '0'...'9':
+  case '0':
+  case '1':
+  case '2':
+  case '3':
+  case '4':
+  case '5':
+  case '6':
+  case '7':
+  case '8':
+  case '9':
     while (is_digit (nextch ()));
     parse.lex.len = parse.text + parse.pos - p;
     parse.lex.type = lex_num;
@@ -321,7 +393,11 @@ char *parse_lex (void) {
 int expect (char *s) {
   if (!parse.lex.ptr || parse.lex.ptr == (void *)-1 || parse.lex.type == lex_error || parse.lex.type == lex_none || parse.lex.len != (int)strlen (s) || memcmp (s, parse.lex.ptr, parse.lex.len)) {
     static char buf[1000];
-    sprintf (buf, "Expected %s", s);
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+    sprintf_s(buf, 1000, "Expected %s", s);
+#else
+    sprintf(buf, "Expected %s", s);
+#endif  
     parse_error (buf);
     return -1;
   } else {
@@ -331,22 +407,37 @@ int expect (char *s) {
 }
 
 struct parse *tl_init_parse_file (const char *fname) {
-  int fd = open (fname, O_RDONLY);
-  if (fd < 0) {
-    fprintf (stderr, "Error %m\n");
-    assert (0);
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+    int fd = 0;
+    if (_sopen_s(&fd, fname, _O_RDONLY | _O_BINARY, _SH_DENYNO, _S_IREAD | _S_IWRITE) != 0) {
+        char errorStr[256] = { 0 };
+        strerror_s(errorStr, 256, errno);
+        TL_ERROR("Error %s\n", errorStr);
+#elif defined(WIN32) || defined(_WIN32)
+    int fd = open(fname, O_RDONLY | O_BINARY);
+    if (fd < 0) {
+        TL_ERROR("Error %s\n", strerror(errno));
+#else
+    int fd = open(fname, O_RDONLY);
+    if (fd < 0) {
+        TL_ERROR("Error %m\n");
+#endif 
+    abort();
     return 0;
   }
   long long size = lseek (fd, 0, SEEK_END);
   if (size <= 0) {
-    fprintf (stderr, "size is %lld. Too small.\n", size);
+    TL_ERROR("size is %"_PRINTF_INT64_"d. Too small.\n", size);
     return 0;
   }
   static struct parse save;
   save.text = talloc (size);
   lseek (fd, 0, SEEK_SET);
   save.len = read (fd, save.text, size);
-  assert (save.len == size);
+  if (save.len != size) {
+      TL_ERROR("cannot read all bytes %" _PRINTF_INT64_"d from file.\n", size);
+      return 0;
+  }
   save.pos = 0;
   save.line = 0;
   save.line_pos = 0;
@@ -870,7 +961,10 @@ struct tree *parse_program (void) {
 }
 
 struct tree *tl_parse_lex (struct parse *_parse) {
-  assert (_parse);
+   if (!_parse) {
+    TL_ERROR("Invalid parse in tl_parse_lex (bug?)");
+    abort();
+  }
   load_parse (*_parse);
   if (parse.lex.type == lex_none) {
     parse_lex ();
@@ -919,11 +1013,6 @@ DEFINE_TREE (var_value, struct tl_var_value, tl_var_value_cmp, empty)
 
 DEFINE_TREE (tl_field,char *,strcmp, 0)
 //tree_tl_field_t *tl_field_tree;
-#define TL_FAIL return 0;
-#define TL_INIT(x) struct tl_combinator_tree *x = 0;
-#define TL_TRY(f,x) { struct tl_combinator_tree *_t = f; if (!_t) { TL_FAIL;} x = tl_union (x, _t); if (!x) { TL_FAIL; }}
-#define TL_ERROR(...) fprintf (stderr, __VA_ARGS__);
-#define TL_WARNING(...) fprintf (stderr, __VA_ARGS__);
 
 void tl_set_var_value (struct tree_var_value **T, struct tl_combinator_tree *var, struct tl_combinator_tree *value) {
   struct tl_var_value t = {.ptr = var, .val = value, .num_val = 0};
@@ -970,8 +1059,10 @@ int tl_is_type_name (const char *id, int len) {
 }
 
 int tl_add_field (char *id) {
-  assert (namespace_level < 10);
-  assert (namespace_level >= 0);
+  if (namespace_level < 0 || namespace_level >= 10) {
+      TL_ERROR("Invalid namespace level %d\n", namespace_level);
+      abort();
+  }
   if (tree_lookup_tl_field (fields[namespace_level], id)) {
     return 0;
   }
@@ -1032,14 +1123,21 @@ struct tl_var *tl_get_var (char *_id, int len) {
 
 void namespace_push (void) {
   namespace_level ++;
-  assert (namespace_level < 10);
+  if (namespace_level > 9) {
+      TL_ERROR("namespace level push exceeded\n");
+      abort();
+  }
   tl_clear_vars ();
   tl_clear_fields ();
 }
 
 void namespace_pop (void) {
   namespace_level --;
-  assert (namespace_level >= 0);
+  if (namespace_level < 0)
+  {
+      TL_ERROR("namespace level pop exceeded\n");
+      abort();
+  }
 }
 
 struct tl_type *tl_get_type (const char *_id, int len) {
@@ -1077,7 +1175,7 @@ struct tl_type *tl_add_type (const char *_id, int len, int params_num, long long
   t->flags = 0;
   t->real_id = 0;
   if (params_num >= 0) {
-    assert (params_num <= 64);
+    if (params_num > 64) abort();
     t->params_num = params_num;
     t->params_types = params_types;
   } else {
@@ -1090,8 +1188,7 @@ struct tl_type *tl_add_type (const char *_id, int len, int params_num, long long
 }
 
 void tl_add_type_param (struct tl_type *t, int x) {
-  assert (t->flags & 4);
-  assert (t->params_num <= 64); 
+  if (!(t->flags & 4) || t->params_num > 64) abort();
   if (x) {
     t->params_types |= (1ull << (t->params_num ++));   
   } else {
@@ -1106,7 +1203,7 @@ int tl_type_set_params (struct tl_type *t, int x, long long y) {
     t->flags &= ~4;
   } else {
     if (t->params_num != x || t->params_types != y) {
-      fprintf (stderr, "Wrong num of params (type %s)\n", t->id);
+      TL_ERROR("Wrong num of params (type %s)\n", t->id);
       return 0;
     }
   }
@@ -1126,7 +1223,10 @@ struct tl_constructor *tl_get_constructor (const char *_id, int len) {
 }
 
 struct tl_constructor *tl_add_constructor (struct tl_type *a, const char *_id, int len, int force_magic) {
-  assert (a);
+  if (!a) {
+      TL_ERROR("Invalid type in add constructor\n");
+      abort();
+  }
   if (a->flags & 1) {
     TL_ERROR ("New constructor for type `%s` after final statement\n", a->id);
     return 0;
@@ -1139,12 +1239,12 @@ struct tl_constructor *tl_add_constructor (struct tl_type *a, const char *_id, i
 
   unsigned magic = 0;
   if (x < len) {
-    assert (len - x >= 6 && len - x <= 9);
+    if (len - x < 6 || len - x > 9) abort();
     int i;
     for (i = 1; i < len - x; i++) {
       magic = (magic << 4) + (_id[x + i] <= '9' ? _id[x + i] - '0' : _id[x + i] - 'a' + 10);
     }
-    assert (magic && magic != (unsigned)-1);
+    if (!magic || magic == (unsigned)-1) abort();
   }
 
   len = x;
@@ -1156,7 +1256,7 @@ struct tl_constructor *tl_add_constructor (struct tl_type *a, const char *_id, i
       return 0;
     }
   } else {
-    assert (len == 1);
+     if (len != 1) abort();
   }
 
   struct tl_constructor *t = talloc (sizeof (*t));
@@ -1173,7 +1273,7 @@ struct tl_constructor *tl_add_constructor (struct tl_type *a, const char *_id, i
 
   t->left = t->right = 0;
   a->constructors = realloc (a->constructors, sizeof (void *) * (a->constructors_num + 1));
-  assert (a->constructors);
+  if(!a->constructors) abort();
   a->constructors[a->constructors_num ++] = t;
   if (*id != '_') {
     tl_constructor_tree = tree_insert_tl_constructor (tl_constructor_tree, t, lrand48 ());
@@ -1193,7 +1293,6 @@ struct tl_constructor *tl_get_function (const char *_id, int len) {
 }
 
 struct tl_constructor *tl_add_function (struct tl_type *a, const char *_id, int len, int force_magic) {
-//  assert (a);
   int x = 0;
   while (x < len && ((_id[x] != '#') || force_magic)) { x++; }
   char *id = talloc (x + 1);
@@ -1202,12 +1301,12 @@ struct tl_constructor *tl_add_function (struct tl_type *a, const char *_id, int
 
   unsigned magic = 0;
   if (x < len) {
-    assert (len - x >= 6 && len - x <= 9);
+    if (len - x < 6 || len - x > 9) abort();
     int i;
     for (i = 1; i < len - x; i++) {
       magic = (magic << 4) + (_id[x + i] <= '9' ? _id[x + i] - '0' : _id[x + i] - 'a' + 10);
     }
-    assert (magic && magic != (unsigned)-1);
+    if (!magic || magic == (unsigned)-1) abort();
   }
 
   len = x;
@@ -1242,7 +1341,7 @@ int buf_pos;
 
 struct tl_combinator_tree *alloc_ctree_node (void) {
   struct tl_combinator_tree *T = talloc (sizeof (*T));
-  assert (T);
+  if (!T) { TL_ERROR("Out of memory: cannot allocate ctree node\n"); abort(); }
   memset (T, 0, sizeof (*T));
   return T;
 }
@@ -1250,6 +1349,7 @@ struct tl_combinator_tree *alloc_ctree_node (void) {
 struct tl_combinator_tree *tl_tree_dup (struct tl_combinator_tree *T) {
   if (!T) { return 0; }
   struct tl_combinator_tree *S = talloc (sizeof (*S));
+  if (!S) { TL_ERROR("Out of memory: cannot duplicate tree\n"); abort(); }
   memcpy (S, T, sizeof (*S));
   S->left = tl_tree_dup (T->left);
   S->right = tl_tree_dup (T->right);
@@ -1257,14 +1357,14 @@ struct tl_combinator_tree *tl_tree_dup (struct tl_combinator_tree *T) {
 }
 
 struct tl_type *tl_tree_get_type (struct tl_combinator_tree *T) {
-  assert (T->type == type_type);
+  if (T->type != type_type) abort();
   if (T->act == act_array) { return 0;}
   while (T->left) {
     T = T->left;
     if (T->act == act_array) { return 0;}
-    assert (T->type == type_type);
+    if (T->type != type_type) abort();
   }
-  assert (T->act == act_type || T->act == act_var || T->act == act_array);
+  if (T->act != act_type && T->act != act_var && T->act != act_array) abort();
   return T->act == act_type ? T->data : 0;
 }
 
@@ -1275,10 +1375,9 @@ void tl_tree_set_len (struct tl_combinator_tree *T) {
     H->left->type_len = H->type_len + 1;
     H = H->left;
   }
-  assert (H->type == type_type);
+  if (H->type != type_type) abort();
   struct tl_type *t = H->data;
-  assert (t);
-  assert (H->type_len == t->params_num);
+  if (!t || H->type_len != t->params_num) abort();
 }
 
 void tl_buf_reset (void) {
@@ -1310,7 +1409,7 @@ void tl_buf_add_string_q (char *s, int len, int x) {
 
 void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
   if (!T) { return; }
-  assert (T != (void *)-1l && T != (void *)-2l);
+  if (T == (void*)-1l || T == (void*)-2l) abort();
   switch (T->act) {
   case act_question_mark:
     tl_buf_add_string_q ("?", -1, x);
@@ -1325,7 +1424,7 @@ void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
     } else {
       struct tl_type *t = T->data;
       if (T->flags & 4) {
-        assert (t->constructors_num == 1);
+        if (t->constructors_num != 1) abort();
         tl_buf_add_string_q (t->constructors[0]->real_id ? t->constructors[0]->real_id : t->constructors[0]->id, -1, x);
       } else {
         tl_buf_add_string_q (t->real_id ? t->real_id : t->id, -1, x);
@@ -1352,7 +1451,11 @@ void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
       tl_buf_add_string_q ((char *)v->data, -1, x);
       if (T->type == type_num && T->type_flags) {
         static char _buf[30];
-        sprintf (_buf, "+%lld", T->type_flags);
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+        sprintf_s(_buf, 30, "+%"_PRINTF_INT64_"d", T->type_flags);
+#else
+        sprintf(_buf, "+%"_PRINTF_INT64_"d", T->type_flags);
+#endif  
         tl_buf_add_string_q (_buf, -1, 0);
       }
     }
@@ -1379,7 +1482,7 @@ void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
   case act_nat_const:
     {
       static char _buf[30];
-      snprintf (_buf, 29, "%lld", T->type_flags);
+      snprintf (_buf, 29, "%"_PRINTF_INT64_"d", T->type_flags);
       tl_buf_add_string_q (_buf, -1, x);
       return;
     }
@@ -1389,7 +1492,11 @@ void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
       tl_buf_add_string_q ((char *)v->data, -1, x);
       tl_buf_add_string_q (".", -1, 0);
       static char _buf[30];
-      sprintf (_buf, "%lld", T->left->type_flags);
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+      sprintf_s(_buf, 30, "%"_PRINTF_INT64_"d", T->left->type_flags);
+#else
+      sprintf(_buf, "%"_PRINTF_INT64_"d", T->left->type_flags);
+#endif
       tl_buf_add_string_q (_buf, -1, 0);
       tl_buf_add_string_q ("?", -1, 0);
       tl_buf_add_tree (T->right, 0);
@@ -1397,14 +1504,14 @@ void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
     }
     
   default:
-    fprintf (stderr, "%s %s\n", TL_ACT (T->act), TL_TYPE (T->type));
-    assert (0);
+    TL_ERROR( "%s %s\n", TL_ACT (T->act), TL_TYPE (T->type));
+    abort();
     return;
   }
 }
 
 int tl_count_combinator_name (struct tl_constructor *c) {
-  assert (c);
+  if (!c) { abort(); }
   tl_buf_reset ();
   tl_buf_add_string_nospace (c->real_id ? c->real_id : c->id, -1);
   tl_buf_add_tree (c->left, 1);
@@ -1412,7 +1519,7 @@ int tl_count_combinator_name (struct tl_constructor *c) {
   tl_buf_add_tree (c->right, 1);
   //fprintf (stderr, "%.*s\n", buf_pos, buf);
   if (!c->name) {
-    c->name = crc32 (CRC32_INITIAL, (void *) buf, buf_pos);
+    c->name = compute_crc32(buf, buf_pos);
   }
   return c->name;
 }
@@ -1421,37 +1528,41 @@ int tl_print_combinator (struct tl_constructor *c) {
   tl_buf_reset ();
   tl_buf_add_string_nospace (c->real_id ? c->real_id : c->id, -1);
   static char _buf[10];
-  sprintf (_buf, "#%08x", c->name);
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+  sprintf_s(_buf, 10, "#%08x", c->name);
+#else
+  sprintf(_buf, "#%08x", c->name);
+#endif
   tl_buf_add_string_nospace (_buf, -1);
   tl_buf_add_tree (c->left, 1);
   tl_buf_add_string ("=", -1);
   tl_buf_add_tree (c->right, 1);
   if (output_expressions >= 1) {
-    fprintf (stderr, "%.*s\n", buf_pos, buf);
+     TL_ERROR("%.*s\n", buf_pos, buf);
   }
 /*  if (!c->name) {
-    c->name = crc32 (CRC32_INITIAL, (void *) bbuf, buf_pos);
+    c->name = compute_crc32 (buf, buf_pos);
   }*/
   return c->name;
 }
 
 int _tl_finish_subtree (struct tl_combinator_tree *R, int x, long long y) {
-  assert (R->type == type_type);
-  assert (R->type_len < 0);
-  assert (R->act == act_arg || R->act == act_type);
+  if (R->type != type_type || R->type_len >= 0 || (R->act != act_arg && R->act != act_type)) {
+      abort();
+  }
   R->type_len = x;
   R->type_flags = y;
   if (R->act == act_type) {
     struct tl_type *t = R->data;
-    assert (t);
+    if (!t) { abort(); }
     return tl_type_set_params (t, x, y);
   }
-  assert ((R->right->type == type_type && R->right->type_len == 0) || R->right->type == type_num || R->right->type == type_num_value);
+  if ((R->right->type != type_type || R->right->type_len != 0) && R->right->type != type_num && R->right->type != type_num_value) abort();
   return _tl_finish_subtree (R->left, x + 1, y * 2 + (R->right->type == type_num || R->right->type == type_num_value));
 }
 
 int tl_finish_subtree (struct tl_combinator_tree *R) {
-  assert (R);
+  if (!R) { abort(); }
   if (R->type != type_type) {
     return 1;
   }
@@ -1517,7 +1628,7 @@ struct tl_combinator_tree *tl_union (struct tl_combinator_tree *L, struct tl_com
       return 0;     
     }
     if (L->type_len > 0 && ((L->type_flags & 1) != (R->type == type_num || R->type == type_num_value))) {
-      TL_ERROR ("Argument types mistmatch: L->type_flags = %lld, R->type = %s\n", L->flags, TL_TYPE (R->type));
+      TL_ERROR ("Argument types mistmatch: L->type_flags = %"_PRINTF_INT64_"d, R->type = %s\n", L->flags, TL_TYPE (R->type));
       return 0;
     }
     v->type = type_type;
@@ -1526,17 +1637,17 @@ struct tl_combinator_tree *tl_union (struct tl_combinator_tree *L, struct tl_com
     v->type_flags = L->type_flags >> 1;
     return v;
   default:
-    assert (0);
+    abort();
     return 0;
   }
 }
 
 struct tl_combinator_tree *tl_parse_any_term (struct tree *T, int s);
 struct tl_combinator_tree *tl_parse_term (struct tree *T, int s) {
-  assert (T->type == type_term);
+  if (T->type != type_term) return NULL;
   int i = 0;
-  while (i < T->nc && T->c[i]->type == type_percent) { i ++; s ++; } 
-  assert (i < T->nc);
+  while (i < T->nc && T->c[i]->type == type_percent) { i ++; s ++; }
+  if (i >= T->nc) abort();
   TL_INIT (L);
   while (i < T->nc) {
     TL_TRY (tl_parse_any_term (T->c[i], s), L);
@@ -1548,24 +1659,21 @@ struct tl_combinator_tree *tl_parse_term (struct tree *T, int s) {
 
 
 struct tl_combinator_tree *tl_parse_type_term (struct tree *T, int s) {
-  assert (T->type == type_type_term);
-  assert (T->nc == 1);
+  if (T->nc != 1 || T->type != type_type_term) abort();
   struct tl_combinator_tree *Z = tl_parse_term (T->c[0], s); 
   if (!Z || Z->type != type_type) { if (Z) { TL_ERROR ("type_term: found type %s\n", TL_TYPE (Z->type)); } TL_FAIL; }
   return Z;
 }
 
 struct tl_combinator_tree *tl_parse_nat_term (struct tree *T, int s) {
-  assert (T->type == type_nat_term);
-  assert (T->nc == 1);
+  if (T->nc != 1 || T->type != type_nat_term) abort();
   struct tl_combinator_tree *Z = tl_parse_term (T->c[0], s);
   if (!Z || (Z->type != type_num && Z->type != type_num_value)) { if (Z) { TL_ERROR ("nat_term: found type %s\n", TL_TYPE (Z->type)); }TL_FAIL; }
   return Z;
 }
 
 struct tl_combinator_tree *tl_parse_subexpr (struct tree *T, int s) {
-  assert (T->type == type_subexpr);
-  assert (T->nc >= 1);
+  if (T->nc < 1 || T->type != type_subexpr) abort();
   int i;
   TL_INIT (L);
   for (i = 0; i < T->nc; i++) {
@@ -1576,8 +1684,7 @@ struct tl_combinator_tree *tl_parse_subexpr (struct tree *T, int s) {
 }
 
 struct tl_combinator_tree *tl_parse_expr (struct tree *T, int s) {
-  assert (T->type == type_expr);
-  assert (T->nc >= 1);
+  if (T->nc < 1 || T->type != type_expr) abort();
   int i;
   TL_INIT (L);
   for (i = 0; i < T->nc; i++) {
@@ -1588,14 +1695,11 @@ struct tl_combinator_tree *tl_parse_expr (struct tree *T, int s) {
 }
 
 struct tl_combinator_tree *tl_parse_nat_const (struct tree *T, int s) {
-  assert (T->type == type_nat_const);
-  assert (!T->nc);
+  if (T->type != type_nat_const || T->nc) abort();
   if (s > 0) {
-    TL_ERROR ("Nat const can not preceed with %%\n");
+    TL_ERROR ("Nat const can not precede with %%\n");
     TL_FAIL;
   }
-  assert (T->type == type_nat_const);
-  assert (!T->nc);
   TL_INIT (L);
   L = alloc_ctree_node ();
   L->act = act_nat_const;
@@ -1610,8 +1714,8 @@ struct tl_combinator_tree *tl_parse_nat_const (struct tree *T, int s) {
 }
 
 struct tl_combinator_tree *tl_parse_ident (struct tree *T, int s) {
-  assert (T->type == type_type_ident || T->type == type_var_ident || T->type == type_boxed_type_ident);
-  assert (!T->nc);
+    if (T->type != type_type_ident && T->type != type_var_ident && T->type != type_boxed_type_ident) abort();
+  if (T->nc) abort();
   struct tl_var *v = tl_get_var (T->text, T->len);
   TL_INIT (L);
   if (v) {   
@@ -1619,7 +1723,7 @@ struct tl_combinator_tree *tl_parse_ident (struct tree *T, int s) {
     L->act = act_var;
     L->type = v->type ? type_num : type_type;
     if (L->type == type_num && s) {
-      TL_ERROR ("Nat var can not preceed with %%\n");
+      TL_ERROR ("Nat var can not precede with %%\n");
       TL_FAIL;
     } else {
       if (s) {
@@ -1646,7 +1750,7 @@ struct tl_combinator_tree *tl_parse_ident (struct tree *T, int s) {
 
   struct tl_constructor *c = tl_get_constructor (T->text, T->len);
   if (c) {
-    assert (c->type);
+    if (!c->type) abort();
     if (c->type->constructors_num != 1) {
       TL_ERROR ("Constructor can be used only if it is the only constructor of the type\n");
       return 0;
@@ -1699,28 +1803,24 @@ struct tl_combinator_tree *tl_parse_any_term (struct tree *T, int s) {
   case type_var_ident:
     return tl_parse_ident (T, s);
   default:
-    fprintf (stderr, "type = %d\n", T->type);
-    assert (0);
+    TL_ERROR("type = %d\n", T->type);
+    abort();
     return 0;    
   }
 }
 
 struct tl_combinator_tree *tl_parse_multiplicity (struct tree *T) {
-  assert (T->type == type_multiplicity);
-  assert (T->nc == 1);
+  if (T->type != type_multiplicity || T->nc != 1) abort();
   return tl_parse_nat_term (T->c[0], 0);
 }
 
 struct tl_combinator_tree *tl_parse_opt_args (struct tree *T) {
-  assert (T);
-  assert (T->type == type_opt_args);
-  assert (T->nc >= 2);
+  if (!T || T->type != type_opt_args || T->nc < 2) abort();
   TL_INIT (R);
   TL_TRY (tl_parse_type_term (T->c[T->nc - 1], 0), R);
-  assert (R->type == type_type && !R->type_len);
-  assert (tl_finish_subtree (R));
+  if (R->type != type_type || R->type_len) abort();
+  if (!tl_finish_subtree(R)) abort();
   struct tl_type *t = tl_tree_get_type (R);
-  //assert (t);
   int tt = -1;
   if (t && !strcmp (t->id, "#")) {
     tt = 1;
@@ -1753,7 +1853,7 @@ struct tl_combinator_tree *tl_parse_opt_args (struct tree *T) {
     S->act = act_field;
     S->data = i >= 0 ? mystrdup (T->c[i]->text, T->c[i]->len) : 0;
     if (tt >= 0) {
-      assert (S->data);
+      if (!S->data) abort();
       tl_add_var (S->data, S, tt);
     }
     S->flags = 33;
@@ -1764,9 +1864,7 @@ struct tl_combinator_tree *tl_parse_opt_args (struct tree *T) {
 
 struct tl_combinator_tree *tl_parse_args (struct tree *T);
 struct tl_combinator_tree *tl_parse_args2 (struct tree *T) {
-  assert (T);
-  assert (T->type == type_args2);
-  assert (T->nc >= 1);
+  if (!T || T->type != type_args2 || T->nc < 1) abort();
   TL_INIT (R);
   TL_INIT (L);
   int x = 0;
@@ -1826,15 +1924,12 @@ struct tl_combinator_tree *tl_parse_args2 (struct tree *T) {
 
 void tl_mark_vars (struct tl_combinator_tree *T);
 struct tl_combinator_tree *tl_parse_args134 (struct tree *T) {
-  assert (T);
-  assert (T->type == type_args1 || T->type == type_args3 || T->type == type_args4);
-  assert (T->nc >= 1);
+    if (!T || T->nc < 1 || (T->type != type_args1 && T->type != type_args3 && T->type != type_args4)) abort();
   TL_INIT (R);
   TL_TRY (tl_parse_type_term (T->c[T->nc - 1], 0), R);
-  assert (tl_finish_subtree (R));
-  assert (R->type == type_type && !R->type_len);
+  if (!tl_finish_subtree(R)) abort();
+  if (R->type != type_type || R->type_len) abort();
   struct tl_type *t = tl_tree_get_type (R);
-  //assert (t);
   int tt = -1;
   if (t && !strcmp (t->id, "#")) {
     tt = 1;
@@ -1853,7 +1948,7 @@ struct tl_combinator_tree *tl_parse_args134 (struct tree *T) {
     last --;
   }
   if (last >= 0 && T->c[last]->type == type_optional_arg_def) {
-    assert (T->c[last]->nc == 2);
+    if (T->c[last]->nc != 2) abort();
     TL_INIT (E); E = alloc_ctree_node ();
     E->type = type_type;
     E->act = act_opt_field;
@@ -1900,11 +1995,14 @@ struct tl_combinator_tree *tl_parse_args134 (struct tree *T) {
       }
     }
     if (tt >= 0) {
-      //assert (S->data);
       char *name = S->data;
       if (!name) {
         static char s[20];
-        sprintf (s, "%lld", lrand48 () * (1ll << 32) + lrand48 ());
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+        sprintf_s(s, 20, "%"_PRINTF_INT64_"d", lrand48() * (1ll << 32) + lrand48());
+#else
+        sprintf(s, "%"_PRINTF_INT64_"d", lrand48() * (1ll << 32) + lrand48());
+#endif
         name = s;
       }
       struct tl_var *v = tl_add_var (name, S, tt);
@@ -1919,8 +2017,7 @@ struct tl_combinator_tree *tl_parse_args134 (struct tree *T) {
 
 
 struct tl_combinator_tree *tl_parse_args (struct tree *T) {
-  assert (T->type == type_args);
-  assert (T->nc == 1);
+  if (T->type != type_args || T->nc != 1) abort();
   switch (T->c[0]->type) {
   case type_args1:
     return tl_parse_args134 (T->c[0]);
@@ -1931,7 +2028,7 @@ struct tl_combinator_tree *tl_parse_args (struct tree *T) {
   case type_args4:
     return tl_parse_args134 (T->c[0]);
   default:
-    assert (0);
+    abort();
     return 0;
   } 
 }
@@ -1941,7 +2038,7 @@ void tl_mark_vars (struct tl_combinator_tree *T) {
   if (T->act == act_var) {
     char *id = ((struct tl_combinator_tree *)(T->data))->data;
     struct tl_var *v = tl_get_var (id, strlen (id));
-    assert (v);
+    if (!v) abort();
     v->flags |= 1;
   }
   tl_mark_vars (T->left);
@@ -1949,9 +2046,7 @@ void tl_mark_vars (struct tl_combinator_tree *T) {
 }
 
 struct tl_combinator_tree *tl_parse_result_type (struct tree *T) {
-  assert (T->type == type_result_type);
-  assert (T->nc >= 1);
-  assert (T->nc <= 64);
+  if (T->type != type_result_type || T->nc > 64 || T->nc < 1) abort();
   
   TL_INIT (L);
 
@@ -1969,13 +2064,12 @@ struct tl_combinator_tree *tl_parse_result_type (struct tree *T) {
       TL_FAIL;
     }
     L->data = v->ptr;
-//    assert (v->ptr);
   } else {
     L = alloc_ctree_node ();
     L->act = act_type;
     L->type = type_type;
     struct tl_type *t = tl_add_type (T->c[0]->text, T->c[0]->len, -1, 0);
-    assert (t);
+    if (!t) abort();
     L->type_len = t->params_num;
     L->type_flags = t->params_types;
     L->data = t;
@@ -1983,8 +2077,8 @@ struct tl_combinator_tree *tl_parse_result_type (struct tree *T) {
     int i;
     for (i = 1; i < T->nc; i++) {
       TL_TRY (tl_parse_any_term (T->c[i], 0), L);
-      assert (L->right);   
-      assert (L->right->type == type_num || L->right->type == type_num_value || (L->right->type == type_type && L->right->type_len == 0));
+      if (!L->right) abort();
+      if (L->right->type != type_num && L->right->type != type_num_value && (L->right->type != type_type || L->right->type_len != 0)) abort();
     }
   }
 
@@ -2002,8 +2096,7 @@ void tl_var_check_used (struct tl_var *v) {
 }
 
 int tl_parse_combinator_decl (struct tree *T, int fun) {
-  assert (T->type == type_combinator_decl);
-  assert (T->nc >= 3);
+  if (T->type != type_combinator_decl || T->nc < 3) abort();
   namespace_level = 0;
   tl_clear_vars ();
   tl_clear_fields ();
@@ -2019,7 +2112,7 @@ int tl_parse_combinator_decl (struct tree *T, int fun) {
     TL_TRY (tl_parse_args (T->c[i]), L);
     i++;
   }
-  assert (i == T->nc - 2 && T->c[i]->type == type_equals);
+  if (i != T->nc - 2 || T->c[i]->type != type_equals) abort();
   i ++;
 
   R = tl_parse_result_type (T->c[i]);
@@ -2029,9 +2122,9 @@ int tl_parse_combinator_decl (struct tree *T, int fun) {
   if (!fun && !t) {
     TL_ERROR ("Only functions can return variables\n");
   }
-  assert (t || fun);
+  if (!t && !fun) abort();
  
-  assert (namespace_level == 0);
+  if (namespace_level != 0) abort();
   __ok = 1;
   tree_act_tl_var (vars[0], tl_var_check_used);
   if (!__ok) {
@@ -2057,23 +2150,25 @@ int tl_parse_combinator_decl (struct tree *T, int fun) {
 }
 
 void change_var_ptrs (struct tl_combinator_tree *O, struct tl_combinator_tree *D, struct tree_var_value **V) {
-  if (!O || !D) {
-    assert (!O && !D);
-    return;
+  if (O && D) {
+      if (O->act == act_field) {
+          struct tl_type* t = tl_tree_get_type(O->left);
+          if (t && (!strcmp(t->id, "#") || !strcmp(t->id, "Type"))) {
+              tl_set_var_value(V, O, D);
+          }
+      }
+      if (O->act == act_var) {
+          if (D->data != O->data) abort();
+          D->data = tl_get_var_value(V, O->data);
+          if (!D->data) abort();
+      }
+      change_var_ptrs(O->left, D->left, V);
+      change_var_ptrs(O->right, D->right, V);
   }
-  if (O->act == act_field) {
-    struct tl_type *t = tl_tree_get_type (O->left);
-    if (t && (!strcmp (t->id, "#") || !strcmp (t->id, "Type"))) {
-      tl_set_var_value (V, O, D);
-    }
+  else if (!O && !D) {
+      abort();
   }
-  if (O->act == act_var) {
-    assert (D->data == O->data);
-    D->data = tl_get_var_value (V, O->data);
-    assert (D->data);
-  }
-  change_var_ptrs (O->left, D->left, V);
-  change_var_ptrs (O->right, D->right, V);
+
 }
 
 struct tl_combinator_tree *change_first_var (struct tl_combinator_tree *O, struct tl_combinator_tree **X, struct tl_combinator_tree *Y) {
@@ -2148,7 +2243,7 @@ void check_nat_val (struct tl_var_value v) {
         return;
       }
     }
-    assert (L->type == type_num);
+    if (L->type != type_num) abort();
     x += L->type_flags;
     x += tl_get_var_value_num (_T, L->data);
     L = tl_get_var_value (_T, L->data);
@@ -2165,9 +2260,9 @@ int check_constructors_equal (struct tl_combinator_tree *L, struct tl_combinator
 }
 
 struct tl_combinator_tree *reduce_type (struct tl_combinator_tree *A, struct tl_type *t) {
-  assert  (A);
+  if (!A) abort();
   if (A->type_len == t->params_num) {
-    assert (A->type_flags == t->params_types);
+    if (A->type_flags != t->params_types) abort();
     A->act = act_type;
     A->type = type_type;
     A->left = A->right = 0;
@@ -2181,7 +2276,7 @@ struct tl_combinator_tree *reduce_type (struct tl_combinator_tree *A, struct tl_
 struct tl_combinator_tree *change_value_var (struct tl_combinator_tree *O, struct tree_var_value **X) {
   if (!O) { return (void *)-2l; };
   while (O->act == act_var) {
-    assert (O->data);
+    if (!O->data) abort();
     if (!tl_get_var_value (X, O->data)) {
       break;
     }
@@ -2224,10 +2319,8 @@ struct tl_combinator_tree *change_value_var (struct tl_combinator_tree *O, struc
 }
 
 int tl_parse_partial_type_app_decl (struct tree *T) {
-  assert (T->type == type_partial_type_app_decl);
-  assert (T->nc >= 1);
+  if (!T || T->type != type_partial_type_app_decl || T->nc < 1 || T->c[0]->type != type_boxed_type_ident) abort();
 
-  assert (T->c[0]->type == type_boxed_type_ident);
   struct tl_type *t = tl_get_type (T->c[0]->text, T->c[0]->len);
   if (!t) {
     TL_ERROR ("Can not make partial app for unknown type\n");
@@ -2237,7 +2330,7 @@ int tl_parse_partial_type_app_decl (struct tree *T) {
   tl_type_finalize (t);
 
   struct tl_combinator_tree *L = tl_parse_ident (T->c[0], 0);
-  assert (L);
+  if (!L) abort();
   int i;
   tl_buf_reset ();
   int cc = T->nc - 1;
@@ -2261,7 +2354,7 @@ int tl_parse_partial_type_app_decl (struct tree *T) {
   static char _buf[100000];
   snprintf (_buf, 100000, "%s%.*s", t->id, buf_pos, buf);
   struct tl_type *nt = tl_add_type (_buf, strlen (_buf), t->params_num - cc, t->params_types >> cc);
-  assert (nt);
+  if (!nt) abort();
   //snprintf (_buf, 100000, "%s #", t->id);
   //nt->real_id = strdup (_buf);
  
@@ -2283,7 +2376,7 @@ int tl_parse_partial_type_app_decl (struct tree *T) {
     A = change_value_var (A, &V);
     if (A == (void *)-1l) { A = 0;}
     B = change_value_var (B, &V);
-    assert (B != (void *)-1l);
+    if (B == (void*)-1l) abort();
     snprintf (_buf, 100000, "%s%.*s", c->id, buf_pos, buf);
 
     struct tl_constructor *r = tl_add_constructor (nt, _buf, strlen (_buf), 1);
@@ -2302,7 +2395,7 @@ int tl_parse_partial_type_app_decl (struct tree *T) {
 }
 
 int tl_parse_partial_comb_app_decl (struct tree *T, int fun) {
-  assert (T->type == type_partial_comb_app_decl);
+    if (T->type != type_partial_comb_app_decl) abort();
 
   struct tl_constructor *c = !fun ? tl_get_constructor (T->c[0]->text, T->c[0]->len) : tl_get_function (T->c[0]->text, T->c[0]->len);
   if (!c) {
@@ -2342,7 +2435,7 @@ int tl_parse_partial_comb_app_decl (struct tree *T, int fun) {
     if (!(Z = change_first_var (R, &K, X))) {
       TL_FAIL;
     }
-    assert (Z == R);
+    if (Z != R) abort();
     tl_buf_add_tree (X, 1);
   }
 
@@ -2364,8 +2457,7 @@ int tl_parse_partial_comb_app_decl (struct tree *T, int fun) {
 
 
 int tl_parse_partial_app_decl (struct tree *T, int fun) {
-  assert (T->type == type_partial_app_decl);
-  assert (T->nc == 1);
+  if (T->nc != 1 || T->type != type_partial_app_decl) abort();
   if (T->c[0]->type == type_partial_comb_app_decl) {
     return tl_parse_partial_comb_app_decl (T->c[0], fun);
   } else {
@@ -2378,8 +2470,7 @@ int tl_parse_partial_app_decl (struct tree *T, int fun) {
 }
 
 int tl_parse_final_final (struct tree *T) {
-  assert (T->type == type_final_final);
-  assert (T->nc == 1);
+  if (T->nc != 1 || T->type != type_final_final) abort();
   struct tl_type *R;
   if ((R = tl_get_type (T->c[0]->text, T->c[0]->len))) {
     R->flags |= 1;
@@ -2391,8 +2482,7 @@ int tl_parse_final_final (struct tree *T) {
 }
 
 int tl_parse_final_new (struct tree *T) {
-  assert (T->type == type_final_new);
-  assert (T->nc == 1);
+  if (T->nc != 1 || T->type != type_final_new) abort();
   if (tl_get_type (T->c[0]->text, T->c[0]->len)) {
     TL_ERROR ("New statement: type `%.*s` already declared\n", T->c[0]->len, T->c[0]->text);
     TL_FAIL;
@@ -2402,22 +2492,19 @@ int tl_parse_final_new (struct tree *T) {
 }
 
 int tl_parse_final_empty (struct tree *T) {
-  assert (T->type == type_final_empty);
-  assert (T->nc == 1);
+    if (T->type != type_final_empty || T->nc != 1) abort();
   if (tl_get_type (T->c[0]->text, T->c[0]->len)) {
     TL_ERROR ("New statement: type `%.*s` already declared\n", T->c[0]->len, T->c[0]->text);
     TL_FAIL;
   }
   struct tl_type *t = tl_add_type (T->c[0]->text, T->c[0]->len, 0, 0);
-  assert (t);
+  if (!t) abort();
   t->flags |= 1 | FLAG_EMPTY;
   return 1;
 }
 
 int tl_parse_final_decl (struct tree *T, int fun) {
-  assert (T->type == type_final_decl);
-  assert (!fun);
-  assert (T->nc == 1);
+   if (T->type != type_final_decl || fun || T->nc != 1) abort();
   switch (T->c[0]->type) {
   case type_final_new:
     return tl_parse_final_new (T->c[0]);
@@ -2426,7 +2513,7 @@ int tl_parse_final_decl (struct tree *T, int fun) {
   case type_final_empty:
     return tl_parse_final_empty (T->c[0]);
   default:
-    assert (0);
+    abort();
     return 0;
   }
 }
@@ -2436,11 +2523,9 @@ int tl_parse_builtin_combinator_decl (struct tree *T, int fun) {
     TL_ERROR ("Builtin type can not be described in function block\n");
     return -1;
   }
-  assert (T->type == type_builtin_combinator_decl);
-  assert (T->nc == 2);
-  assert (T->c[0]->type == type_full_combinator_id);
-  assert (T->c[1]->type == type_boxed_type_ident);
-
+  if (T->nc != 2 || T->type != type_builtin_combinator_decl || T->c[0]->type !=
+      type_full_combinator_id || T->c[1]->type != type_boxed_type_ident)
+      abort();
 
   if ((!mystrcmp2 (T->c[0]->text, T->c[0]->len, "int") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Int")) ||
       (!mystrcmp2 (T->c[0]->text, T->c[0]->len, "long") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Long")) ||
@@ -2479,8 +2564,7 @@ int tl_parse_builtin_combinator_decl (struct tree *T, int fun) {
 }
 
 int tl_parse_declaration (struct tree *T, int fun) {
-  assert (T->type == type_declaration);
-  assert (T->nc == 1);
+  if (T->nc != 1 || T->type != type_declaration) abort();
   switch (T->c[0]->type) {
   case type_combinator_decl:
     return tl_parse_combinator_decl (T->c[0], fun);
@@ -2491,13 +2575,13 @@ int tl_parse_declaration (struct tree *T, int fun) {
   case type_builtin_combinator_decl:
     return tl_parse_builtin_combinator_decl (T->c[0], fun);
   default:
-    assert (0);
+    abort();
     return 0;
   }
 }
 
 int tl_parse_constr_declarations (struct tree *T) {
-  assert (T->type == type_constr_declarations);
+  if (T->type != type_constr_declarations) abort();
   int i;
   for (i = 0; i < T->nc; i++) {
     TL_TRY_PES (tl_parse_declaration (T->c[i], 0));
@@ -2506,7 +2590,7 @@ int tl_parse_constr_declarations (struct tree *T) {
 }
 
 int tl_parse_fun_declarations (struct tree *T) {
-  assert (T->type == type_fun_declarations);
+  if (T->type != type_fun_declarations) abort();
   int i;
   for (i = 0; i < T->nc; i++) {
     TL_TRY_PES (tl_parse_declaration (T->c[i], 1));
@@ -2532,10 +2616,9 @@ int tl_tree_lookup_value (struct tl_combinator_tree *L, void *var, struct tree_v
 }
 
 int tl_tree_lookup_value_nat (struct tl_combinator_tree *L, void *var, long long x, struct tree_var_value **T) {
-  assert (L);
+  if (!L) abort();
   if (L->type == type_num_value) { return -1; }
-  assert (L->type == type_num);
-  assert (L->act == act_var);
+  if (L->type != type_num || L->act != act_var) abort();
   if (L->data == var) {
     return x == L->type_flags ? 0 : 1;
   } else {
@@ -2548,111 +2631,119 @@ int tl_tree_lookup_value_nat (struct tl_combinator_tree *L, void *var, long long
 }
 
 int uniformize (struct tl_combinator_tree *L, struct tl_combinator_tree *R, struct tree_var_value **T) {
-  if (!L || !R) {
-    assert (!L && !R);
-    return 1;
-  }
-  if (R->act == act_var) {
-    struct tl_combinator_tree *_ = R; R = L; L = _;
-  }
- 
-  if (L->type == type_type) {
-    if (R->type != type_type || L->type_len != R->type_len || L->type_flags != R->type_flags) {
+  if (L && R) {
+      if (R->act == act_var) {
+          struct tl_combinator_tree* _ = R; R = L; L = _;
+      }
+
+      if (L->type == type_type) {
+          if (R->type != type_type || L->type_len != R->type_len || L->type_flags != R->type_flags) {
+              return 0;
+          }
+          if (R->data == (void*)-1l || L->data == (void*)-1l) { return 1; }
+          if (L->act == act_var) {
+              int x = tl_tree_lookup_value(R, L->data, T);
+              if (x > 0) {
+                  //      if (tl_tree_lookup_value (R, L->data, T) > 0) {
+                  return 0;
+              }
+              if (x == 0) {
+                  return 1;
+              }
+              struct tl_combinator_tree* E = tl_get_var_value(T, L->data);
+              if (!E) {
+                  tl_set_var_value(T, L->data, R);
+                  return 1;
+              }
+              else {
+                  return uniformize(E, R, T);
+              }
+          }
+          else {
+              if (L->act != R->act || L->data != R->data) {
+                  return 0;
+              }
+              return uniformize(L->left, R->left, T) && uniformize(L->right, R->right, T);
+          }
+      }
+      else {
+          if (L->type != type_num && L->type != type_num_value) abort();
+          if (R->type != type_num && R->type != type_num_value) {
+              return 0;
+          }
+          if (R->type != type_num && R->type != type_num_value) abort();
+          if (R->data == (void*)-1l || L->data == (void*)-1l) { return 1; }
+          long long x = 0;
+          struct tl_combinator_tree* K = L;
+          while (1) {
+              x += K->type_flags;
+              if (K->type == type_num_value) {
+                  break;
+              }
+              if (!tl_get_var_value(T, K->data)) {
+                  int s = tl_tree_lookup_value_nat(R, K->data, K->type_flags, T);
+                  if (s > 0) {
+                      return 0;
+                  }
+                  if (s == 0) {
+                      return 1;
+                  }
+                  /*tl_set_var_value_num (T, K->data, R, -x);
+                  return 1;*/
+                  break;
+              }
+              x += tl_get_var_value_num(T, K->data);
+              K = tl_get_var_value(T, K->data);
+          }
+          long long y = 0;
+          struct tl_combinator_tree* M = R;
+          while (1) {
+              y += M->type_flags;
+              if (M->type == type_num_value) {
+                  break;
+              }
+              if (!tl_get_var_value(T, M->data)) {
+                  int s = tl_tree_lookup_value_nat(L, M->data, M->type_flags, T);
+                  if (s > 0) {
+                      return 0;
+                  }
+                  if (s == 0) {
+                      return 1;
+                  }
+                  /*tl_set_var_value_num (T, M->data, L, -y);
+                  return 1;*/
+                  break;
+              }
+              y += tl_get_var_value_num(T, M->data);
+              M = tl_get_var_value(T, M->data);
+          }
+          if (K->type == type_num_value && M->type == type_num_value) {
+              return x == y;
+          }
+          if (M->type == type_num_value) {
+              tl_set_var_value_num(T, K->data, M, -(x - y + M->type_flags));
+              return 1;
+          }
+          else if (K->type == type_num_value) {
+              tl_set_var_value_num(T, M->data, K, -(y - x + K->type_flags));
+              return 1;
+          }
+          else {
+              if (x >= y) {
+                  tl_set_var_value_num(T, K->data, M, -(x - y + M->type_flags));
+              }
+              else {
+                  tl_set_var_value_num(T, M->data, K, -(y - x + K->type_flags));
+              }
+              return 1;
+          }
+      }
       return 0;
-    }
-    if (R->data == (void *)-1l || L->data == (void *)-1l) { return 1;}
-    if (L->act == act_var) {
-      int x = tl_tree_lookup_value (R, L->data, T);
-      if (x > 0) {
-//      if (tl_tree_lookup_value (R, L->data, T) > 0) {
-        return 0;
-      }
-      if (x == 0) {
-        return 1;
-      }
-      struct tl_combinator_tree *E = tl_get_var_value (T, L->data);
-      if (!E) {
-        tl_set_var_value (T, L->data, R);
-        return 1;
-      } else {
-        return uniformize (E, R, T);
-      }
-    } else {
-      if (L->act != R->act || L->data != R->data) {
-        return 0;
-      }
-      return uniformize (L->left, R->left, T) && uniformize (L->right, R->right, T);
-    }
-  } else {
-    assert (L->type == type_num || L->type == type_num_value);
-    if (R->type != type_num && R->type != type_num_value) {
-      return 0;
-    }
-    assert (R->type == type_num || R->type == type_num_value);
-    if (R->data == (void *)-1l || L->data == (void *)-1l) { return 1;}
-    long long x = 0;
-    struct tl_combinator_tree *K = L;
-    while (1) {
-      x += K->type_flags;
-      if (K->type == type_num_value) {
-        break;
-      }
-      if (!tl_get_var_value (T, K->data)) {
-        int s = tl_tree_lookup_value_nat (R, K->data, K->type_flags, T);
-        if (s > 0) {
-          return 0;
-        }
-        if (s == 0) {
-          return 1;
-        }
-        /*tl_set_var_value_num (T, K->data, R, -x);
-        return 1;*/
-        break;
-      }
-      x += tl_get_var_value_num (T, K->data);
-      K = tl_get_var_value (T, K->data);
-    }
-    long long y = 0;
-    struct tl_combinator_tree *M = R;
-    while (1) {
-      y += M->type_flags;
-      if (M->type == type_num_value) {
-        break;
-      }
-      if (!tl_get_var_value (T, M->data)) {
-        int s = tl_tree_lookup_value_nat (L, M->data, M->type_flags, T);
-        if (s > 0) {
-          return 0;
-        }
-        if (s == 0) {
-          return 1;
-        }
-        /*tl_set_var_value_num (T, M->data, L, -y);
-        return 1;*/
-        break;
-      }
-      y += tl_get_var_value_num (T, M->data);
-      M = tl_get_var_value (T, M->data);
-    }
-    if (K->type == type_num_value && M->type == type_num_value) {
-      return x == y;     
-    }
-    if (M->type == type_num_value) {
-      tl_set_var_value_num (T, K->data, M, -(x - y + M->type_flags));
-      return 1;     
-    } else if (K->type == type_num_value) {
-      tl_set_var_value_num (T, M->data, K, -(y - x + K->type_flags));
-      return 1;     
-    } else {
-      if (x >= y) {
-        tl_set_var_value_num (T, K->data, M, -(x - y + M->type_flags));
-      } else {
-        tl_set_var_value_num (T, M->data, K, -(y - x + K->type_flags));
-      }
+  } else if (!L && !R) {
       return 1;
-    }
+  } else {
+    abort();
   }
-  return 0;
 }
 
 
@@ -2706,8 +2797,7 @@ void tl_type_check (struct tl_type *t) {
 }
 
 struct tl_program *tl_parse (struct tree *T) {
-  assert (T);
-  assert (T->type == type_tl_program);
+  if (!T || T->type != type_tl_program) return 0;
   int i;
   tl_program_cur = talloc (sizeof (*tl_program_cur));
   tl_add_type ("#", 1, 0, 0);
@@ -2730,11 +2820,21 @@ int num = 0;
 void wint (int a) {
 //  printf ("%d ", a);
   a = htole32 (a);
-  assert (write (__f, &a, 4) == 4);
+  int r = write(__f, &a, 4);
+  if (r != 4)
+  {
+      TL_ERROR("Cannot write int %d, file might be corrupted", a);
+      abort();
+  }
 }
 
 void wdata (const void *x, int len) {
-  assert (write (__f, x, len) == len);
+  int r = write(__f, x, len);
+  if (r != len)
+  {
+      TL_ERROR("Cannot write data len %d, file might be corrupted", len);
+      abort();
+  }
 }
 
 void wstr (const char *s) {
@@ -2743,10 +2843,15 @@ void wstr (const char *s) {
     int x = strlen (s);
     if (x <= 254) {
       unsigned char x_c = (unsigned char)x;
-      assert (write (__f, &x_c, 1) == 1);
+      int r = write(__f, &x_c, 1);
+      if (r != 1)
+      {
+          TL_ERROR("Cannot write string %s, file might be corrupted", s);
+          abort();
+      }
     } else {
-      fprintf (stderr, "String is too big...\n");
-      assert (0);
+        TL_ERROR("String is too big...\n");
+      abort();
     }
     wdata (s, x);
     x ++; // The header, containing the length, which is 1 byte
@@ -2764,15 +2869,21 @@ void wstr (const char *s) {
 void wll (long long a) {
 //  printf ("%lld ", a);
   a = htole64 (a);
-  assert (write (__f, &a, 8) == 8);
+  int r = write(__f, &a, 8);
+  if (r != 8)
+  {
+      TL_ERROR("Cannot write long long %lld, file might be corrupted", a);
+      abort();
+  }
 }
 
 int count_list_size (struct tl_combinator_tree *T) {
-  assert (T->type == type_list || T->type == type_list_item);
   if (T->type == type_list_item) {
     return 1;
+  } else if (T->type == type_list) {
+      return count_list_size(T->left) + count_list_size(T->right);
   } else {
-    return count_list_size (T->left) + count_list_size (T->right);
+      abort();
   }
 }
 
@@ -2816,25 +2927,22 @@ void write_var_type_flags (long long flags) {
   }
   if (new_flags & FLAG_BARE) {
     TL_ERROR ("Sorry, bare vars are not (yet ?) supported.\n");
-    assert (!(new_flags & FLAG_BARE));
+    abort();
   }
   wint (new_flags);
 }
 
 void write_tree (struct tl_combinator_tree *T, int extra, struct tree_var_value **v, int *last_var);
 void write_args (struct tl_combinator_tree *T, struct tree_var_value **v, int *last_var) {
-  assert (T->type == type_list || T->type == type_list_item);
   if (T->type == type_list) {
-    assert (T->act == act_union);
-    assert (T->left);
-    assert (T->right);
+    if (!T->left || !T->right || T->act != act_union) abort();
     write_args (T->left, v, last_var);
     write_args (T->right, v, last_var);
     return;
   }
+  if (T->type != type_list_item) abort();
   wint (TLS_ARG_V2);
-  assert (T->act == act_field);
-  assert (T->left);
+  if (T->act != act_field || !T->left) abort();
   wstr (T->data && strcmp (T->data, "_") ? T->data : 0);
   long long f = T->flags;
   if (T->left->act == act_opt_field) {
@@ -2867,14 +2975,13 @@ void write_type_rec (struct tl_combinator_tree *T, int cc, struct tree_var_value
     }
     write_tree (T->right, 0, v, last_var);
   } else {
-    assert (T->act == act_var || T->act == act_type);
     if (T->act == act_var) {
-      assert (!cc);
+      if (cc) abort();
       wint (TLS_TYPE_VAR);
       wint (tl_get_var_value_num (v, T->data));
       write_var_type_flags (T->flags);
       //wint (T->flags);
-    } else {
+    } else if (T->act == act_type) {
       wint (TLS_TYPE_EXPR);
       struct tl_type *t = T->data;
       wint (t->name);
@@ -2882,15 +2989,17 @@ void write_type_rec (struct tl_combinator_tree *T, int cc, struct tree_var_value
 //      wint (T->flags);
       wint (cc);
 //      fprintf (stderr, "cc = %d\n", cc);
+    } else {
+       abort();
     }
   }
 }
 
 void write_opt_type (struct tl_combinator_tree *T, struct tree_var_value **v, int *last_var) {
+  if (!T) abort();
   wint (tl_get_var_value_num (v, T->left->data));
   wint (T->left->type_flags);
 //  write_tree (T->right, 0, v, last_var);
-  assert (T);
   T = T->right;
   switch (T->type) {
   case type_type:
@@ -2899,16 +3008,16 @@ void write_opt_type (struct tl_combinator_tree *T, struct tree_var_value **v, in
     } else if (T->act == act_type || T->act == act_var || T->act == act_arg) {
       write_type_rec (T, 0, v, last_var);
     } else {
-      assert (0);
+      abort();
     }
     break;
   default:
-    assert (0);
+    abort();
   }
 }
 
 void write_tree (struct tl_combinator_tree *T, int extra, struct tree_var_value **v, int *last_var) {
-  assert (T);
+  if (!T) abort();
   switch (T->type) {
   case type_list_item:
   case type_list:
@@ -2933,12 +3042,12 @@ void write_tree (struct tl_combinator_tree *T, int extra, struct tree_var_value
     } else if (T->act == act_type || T->act == act_var || T->act == act_arg) {
       write_type_rec (T, 0, v, last_var);
     } else {
-      assert (T->act == act_opt_field);
+      if (T->act != act_opt_field) abort();
       write_opt_type (T, v, last_var);
     }
     break;
   default:
-    assert (0);
+    abort();
   }
 }
 
@@ -2958,12 +3067,12 @@ int is_builtin_type (const char *id) {
 }
 
 void write_combinator (struct tl_constructor *c) {
+  struct tree_var_value* T = 0;
+  int x = 0;
+  if (!c->right) abort();
   wint (c->name);
   wstr (c->id);
   wint (c->type ? c->type->name : 0);
-  struct tree_var_value *T = 0;
-  int x = 0;
-  assert (c->right);
   if (c->left) {
     if (is_builtin_type (c->id)) {
       wint (TLS_COMBINATOR_LEFT_BUILTIN);
diff --git a/tl-parser.h b/tl-parser.h
index faa142b..7eb7524 100644
--- a/tl-parser.h
+++ b/tl-parser.h
@@ -24,6 +24,21 @@
 
 #ifndef __TL_PARSER_NEW_H__
 #define __TL_PARSER_NEW_H__
+#if defined(WIN32) || defined(_WIN32)
+#define lrand48() rand()
+#define _PRINTF_INT64_ "I64"
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+#define read _read
+#define write _write
+#define close _close
+#define lseek _lseek
+#define strdup _strdup
+#define __attribute__(x)
+#endif
+#else
+#define _PRINTF_INT64_ "ll"
+#endif
+
 enum lex_type {
   lex_error,
   lex_char, 
diff --git a/tlc.c b/tlc.c
index cd0300f..153eacd 100644
--- a/tlc.c
+++ b/tlc.c
@@ -22,21 +22,23 @@
 
 */
 
-#include "config.h"
-
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
-
-#include "tl-parser.h"
 
+#if defined(_MSC_VER)
+#include <io.h>
+#include <stdint.h>
+#include <string.h>
+#include "wingetopt.h"
+#else
 #include <unistd.h>
+#endif
+#include "tl-parser.h"
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 
 #include <signal.h>
-#include "config.h"
 
 #ifdef HAVE_EXECINFO_H
 #include <execinfo.h>
@@ -56,8 +58,24 @@ void usage (void) {
 }
 
 int vkext_write (const char *filename) {
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+  int f = 0;
+  int r = _sopen_s(&f, filename, _O_CREAT | _O_WRONLY | _O_TRUNC | _O_BINARY, _SH_DENYNO, _S_IREAD | _S_IWRITE);
+  if (r != 0)
+  {
+      fprintf(stderr, "Cannot write file %s\n", filename);
+      abort();
+  }
+#elif defined(WIN32) || defined(_WIN32)
+  int f = open(filename, O_CREAT | O_WRONLY | O_TRUNC | O_BINARY, 0640);
+#else
   int f = open (filename, O_CREAT | O_WRONLY | O_TRUNC, 0640);
-  assert (f >= 0);
+#endif
+  if (!f)
+  {
+      fprintf(stderr, "Cannot write file %s\n", filename);
+      abort();
+  }
   write_types (f);
   close (f);
   return 0;
diff --git a/wingetopt.c b/wingetopt.c
new file mode 100644
index 0000000..09dac17
--- /dev/null
+++ b/wingetopt.c
@@ -0,0 +1,82 @@
+/*
+POSIX getopt for Windows
+
+AT&T Public License
+
+Code given out at the 1985 UNIFORUM conference in Dallas.
+*/
+
+#ifndef __GNUC__
+
+#include "wingetopt.h"
+#include <stdio.h>
+#include <string.h>
+
+#ifndef NULL
+#define NULL	0
+#endif 
+#define EOF	(-1)
+#define ERR(s, c)	if(opterr){\
+	char errbuf[2];\
+	errbuf[0] = c; errbuf[1] = '\n';\
+	fputs(argv[0], stderr);\
+	fputs(s, stderr);\
+	fputc(c, stderr);}
+//(void) write(2, argv[0], (unsigned)strlen(argv[0]));\
+	//(void) write(2, s, (unsigned)strlen(s));\
+	//(void) write(2, errbuf, 2);}
+
+int	opterr = 1;
+int	optind = 1;
+int	optopt;
+char	*optarg;
+
+int
+getopt(argc, argv, opts)
+int	argc;
+char	**argv, *opts;
+{
+	static int sp = 1;
+	register int c;
+	register char *cp;
+
+	if (sp == 1)
+		if (optind >= argc ||
+			argv[optind][0] != '-' || argv[optind][1] == '\0')
+			return(EOF);
+		else if (strcmp(argv[optind], "--") == (int)NULL) {
+			optind++;
+			return(EOF);
+		}
+		optopt = c = argv[optind][sp];
+		if (c == ':' || (cp = strchr(opts, c)) == NULL) {
+			ERR(": illegal option -- ", c);
+			if (argv[optind][++sp] == '\0') {
+				optind++;
+				sp = 1;
+			}
+			return('?');
+		}
+		if (*++cp == ':') {
+			if (argv[optind][sp + 1] != '\0')
+				optarg = &argv[optind++][sp + 1];
+			else if (++optind >= argc) {
+				ERR(": option requires an argument -- ", c);
+				sp = 1;
+				return('?');
+			}
+			else
+				optarg = argv[optind++];
+			sp = 1;
+		}
+		else {
+			if (argv[optind][++sp] == '\0') {
+				sp = 1;
+				optind++;
+			}
+			optarg = NULL;
+		}
+		return(c);
+}
+
+#endif  /* __GNUC__ */
\ No newline at end of file
diff --git a/wingetopt.h b/wingetopt.h
new file mode 100644
index 0000000..4372c66
--- /dev/null
+++ b/wingetopt.h
@@ -0,0 +1,32 @@
+/*
+POSIX getopt for Windows
+
+AT&T Public License
+
+Code given out at the 1985 UNIFORUM conference in Dallas.
+*/
+
+#ifdef __GNUC__
+#include <getopt.h>
+#endif
+#ifndef __GNUC__
+
+#ifndef _WINGETOPT_H_
+#define _WINGETOPT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+	extern int opterr;
+	extern int optind;
+	extern int optopt;
+	extern char *optarg;
+	extern int getopt(int argc, char **argv, char *opts);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* _GETOPT_H_ */
+#endif  /* __GNUC__ */
\ No newline at end of file