#!/bin/sh
|
|
|
|
# Detects OS we're compiling on and generates build_config.mk,
|
|
# which in turn gets read while processing Makefile.
|
|
|
|
# build_config.mk will set the following variables:
|
|
# - PORT_CFLAGS will either set:
|
|
# -DLEVELDB_PLATFORM_POSIX if cstatomic is present
|
|
# -DLEVELDB_PLATFORM_NOATOMIC if it is not
|
|
# - PLATFORM_CFLAGS with compiler flags for the platform
|
|
# - PLATFORM_LDFLAGS with linker flags for the platform
|
|
|
|
# Delete existing build_config.mk
|
|
rm -f build_config.mk
|
|
|
|
# Detect OS
|
|
case `uname -s` in
|
|
Darwin)
|
|
PLATFORM=OS_MACOSX
|
|
echo "PLATFORM_CFLAGS=-DOS_MACOSX" >> build_config.mk
|
|
echo "PLATFORM_LDFLAGS=" >> build_config.mk
|
|
;;
|
|
Linux)
|
|
PLATFORM=OS_LINUX
|
|
echo "PLATFORM_CFLAGS=-pthread -DOS_LINUX" >> build_config.mk
|
|
echo "PLATFORM_LDFLAGS=-lpthread" >> build_config.mk
|
|
;;
|
|
SunOS)
|
|
PLATFORM=OS_SOLARIS
|
|
echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_SOLARIS" >> build_config.mk
|
|
echo "PLATFORM_LDFLAGS=-lpthread -lrt" >> build_config.mk
|
|
;;
|
|
FreeBSD)
|
|
PLATFORM=OS_FREEBSD
|
|
echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_FREEBSD" >> build_config.mk
|
|
echo "PLATFORM_LDFLAGS=-lpthread" >> build_config.mk
|
|
;;
|
|
GNU/kFreeBSD)
|
|
PLATFORM=OS_FREEBSD
|
|
echo "PLATFORM_CFLAGS=-pthread -DOS_FREEBSD" >> build_config.mk
|
|
echo "PLATFORM_LDFLAGS=-lpthread -lrt" >> build_config.mk
|
|
;;
|
|
*)
|
|
echo "Unknown platform!"
|
|
exit 1
|
|
esac
|
|
|
|
echo "PLATFORM=$PLATFORM" >> build_config.mk
|
|
|
|
# On GCC, use libc's memcmp, not GCC's memcmp
|
|
PORT_CFLAGS="-fno-builtin-memcmp"
|
|
|
|
# Detect C++0x -- this determines whether we'll use port_noatomic.h
|
|
# or port_posix.h by:
|
|
# 1. Rrying to compile with -std=c++0x and including <cstdatomic>.
|
|
# 2. If g++ returns error code, we know to use port_posix.h
|
|
g++ $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <cstdatomic>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
PORT_CFLAGS="$PORT_CFLAGS -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT -std=c++0x"
|
|
else
|
|
PORT_CFLAGS="$PORT_CFLAGS -DLEVELDB_PLATFORM_POSIX"
|
|
fi
|
|
|
|
# Test whether Snappy library is installed
|
|
# http://code.google.com/p/snappy/
|
|
g++ $CFLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
|
|
#include <snappy.h>
|
|
int main() {}
|
|
EOF
|
|
if [ "$?" = 0 ]; then
|
|
echo "SNAPPY=1" >> build_config.mk
|
|
else
|
|
echo "SNAPPY=0" >> build_config.mk
|
|
fi
|
|
|
|
echo "PORT_CFLAGS=$PORT_CFLAGS" >> build_config.mk
|