xserver-multidpi/m4/shave.m4
Eric Anholt 181cc08c89 Add shave so that we can see the steaming piles of warnings generated.
The old style output can be reenabled for build system debugging using
"make V=1", or --disable-shave at configure time.
2009-04-14 10:35:44 -04:00

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dnl Make automake/libtool output more friendly to humans
dnl
dnl SHAVE_INIT([shavedir],[default_mode])
dnl
dnl shavedir: the directory where the shave scripts are, it defaults to
dnl $(top_builddir)
dnl default_mode: (enable|disable) default shave mode. This parameter
dnl controls shave's behaviour when no option has been
dnl given to configure. It defaults to disable.
dnl
dnl * SHAVE_INIT should be called late in your configure.(ac|in) file (just
dnl before AC_CONFIG_FILE/AC_OUTPUT is perfect. This macro rewrites CC and
dnl LIBTOOL, you don't want the configure tests to have these variables
dnl re-defined.
dnl * This macro requires GNU make's -s option.
AC_DEFUN([_SHAVE_ARG_ENABLE],
[
AC_ARG_ENABLE([shave],
AS_HELP_STRING(
[--enable-shave],
[use shave to make the build pretty [[default=$1]]]),,
[enable_shave=$1]
)
])
AC_DEFUN([SHAVE_INIT],
[
dnl you can tweak the default value of enable_shave
m4_if([$2], [enable], [_SHAVE_ARG_ENABLE(yes)], [_SHAVE_ARG_ENABLE(no)])
if test x"$enable_shave" = xyes; then
dnl where can we find the shave scripts?
m4_if([$1],,
[shavedir="$ac_pwd"],
[shavedir="$ac_pwd/$1"])
AC_SUBST(shavedir)
dnl make is now quiet
AC_SUBST([MAKEFLAGS], [-s])
AC_SUBST([AM_MAKEFLAGS], ['`test -z $V && echo -s`'])
dnl we need sed
AC_CHECK_PROG(SED,sed,sed,false)
dnl substitute libtool
SHAVE_SAVED_LIBTOOL=$LIBTOOL
LIBTOOL="${SHELL} ${shavedir}/shave-libtool '${SHAVE_SAVED_LIBTOOL}'"
AC_SUBST(LIBTOOL)
dnl substitute cc/cxx
SHAVE_SAVED_CC=$CC
SHAVE_SAVED_CXX=$CXX
SHAVE_SAVED_FC=$FC
SHAVE_SAVED_F77=$F77
CC="${SHELL} ${shavedir}/shave cc ${SHAVE_SAVED_CC}"
CXX="${SHELL} ${shavedir}/shave cxx ${SHAVE_SAVED_CXX}"
FC="${SHELL} ${shavedir}/shave fc ${SHAVE_SAVED_FC}"
F77="${SHELL} ${shavedir}/shave f77 ${SHAVE_SAVED_F77}"
AC_SUBST(CC)
AC_SUBST(CXX)
AC_SUBST(FC)
AC_SUBST(F77)
V=@
else
V=1
fi
Q='$(V:1=)'
AC_SUBST(V)
AC_SUBST(Q)
])