f122c6dfbb
- LevelDB patch for FreeBSD. This resolves Issue 22. Contributed by dforsythe (thanks!). - Removing Chromium-specific files. They are now going to live in the Chromium repository. - Adding a benchmark page comparing LevelDB performance to SQLite and Kyoto Cabinet's TreeDB, along with code to generate the benchmarks. Thanks to Kevin Tseng for compiling the benchmarks, and Scott Hess and Mikio Hirabayashi for their help and advice. git-svn-id: https://leveldb.googlecode.com/svn/trunk@40 62dab493-f737-651d-591e-8d6aee1b9529
75 lines
2.2 KiB
Bash
75 lines
2.2 KiB
Bash
#!/bin/sh
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# Detects OS we're compiling on and generates build_config.mk,
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# which in turn gets read while processing Makefile.
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# build_config.mk will set the following variables:
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# - PORT_CFLAGS will either set:
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# -DLEVELDB_PLATFORM_POSIX if cstatomic is present
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# -DLEVELDB_PLATFORM_NOATOMIC if it is not
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# - PLATFORM_CFLAGS with compiler flags for the platform
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# - PLATFORM_LDFLAGS with linker flags for the platform
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# Delete existing build_config.mk
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rm -f build_config.mk
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# Detect OS
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case `uname -s` in
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Darwin)
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PLATFORM=OS_MACOSX
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echo "PLATFORM_CFLAGS=-DOS_MACOSX" >> build_config.mk
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echo "PLATFORM_LDFLAGS=" >> build_config.mk
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;;
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Linux)
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PLATFORM=OS_LINUX
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echo "PLATFORM_CFLAGS=-pthread -DOS_LINUX" >> build_config.mk
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echo "PLATFORM_LDFLAGS=-lpthread" >> build_config.mk
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;;
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SunOS)
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PLATFORM=OS_SOLARIS
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echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_SOLARIS" >> build_config.mk
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echo "PLATFORM_LDFLAGS=-lpthread -lrt" >> build_config.mk
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;;
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FreeBSD)
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PLATFORM=OS_FREEBSD
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echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_FREEBSD" >> build_config.mk
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echo "PLATFORM_LDFLAGS=-lpthread" >> build_config.mk
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;;
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*)
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echo "Unknown platform!"
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exit 1
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esac
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echo "PLATFORM=$PLATFORM" >> build_config.mk
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# On GCC, use libc's memcmp, not GCC's memcmp
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PORT_CFLAGS="-fno-builtin-memcmp"
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# Detect C++0x -- this determines whether we'll use port_noatomic.h
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# or port_posix.h by:
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# 1. Rrying to compile with -std=c++0x and including <cstdatomic>.
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# 2. If g++ returns error code, we know to use port_posix.h
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g++ $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <cstdatomic>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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PORT_CFLAGS="$PORT_CFLAGS -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT -std=c++0x"
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else
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PORT_CFLAGS="$PORT_CFLAGS -DLEVELDB_PLATFORM_POSIX"
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fi
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# Test whether Snappy library is installed
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# http://code.google.com/p/snappy/
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g++ $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
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#include <snappy.h>
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int main() {}
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EOF
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if [ "$?" = 0 ]; then
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echo "SNAPPY=1" >> build_config.mk
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else
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echo "SNAPPY=0" >> build_config.mk
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fi
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echo "PORT_CFLAGS=$PORT_CFLAGS" >> build_config.mk
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