lib/buildit

#! /bin/sh
#
# Set the $TRIPLE environment variable to your system's triple before
# running this script. If you set $CXX, that will be used to compile
# the library. Otherwise we'll use clang++.

set -e

if [ `basename $(pwd)` != "lib" ]
then
 echo "current directory must be lib"
 exit 1
fi

if [ -z "$CXX" ]
then
 CXX=clang++
fi

if [ -z "$CXX_LANG" ]
then
 CXX_LANG=c++11
fi

if [ -z "$CC" ]
then
 CC=clang
fi

if [ -z "$MACOSX_DEPLOYMENT_TARGET" ]
then
 if [ -z "$IPHONEOS_DEPLOYMENT_TARGET" ]
 then
 MACOSX_DEPLOYMENT_TARGET=10.7
 fi
fi

if [ -z "$RC_ProjectSourceVersion" ]
then
 RC_ProjectSourceVersion=1
fi

EXTRA_FLAGS="-nostdinc++ -std=${CXX_LANG} -fstrict-aliasing -Wall -Wextra -Wshadow -Wconversion \
 -Wpadded -Wstrict-aliasing=2 -Wstrict-overflow=4 "

case $TRIPLE in
 *-apple-*)
 if [ -z $RC_XBS ]
 then
 RC_CFLAGS="-arch i386 -arch x86_64"
 fi
 SOEXT=dylib
 if [ "$MACOSX_DEPLOYMENT_TARGET" = "10.6" ]
 then
 EXTRA_FLAGS="-nostdinc++ -std=c++11 -U__STRICT_ANSI__"
 LDSHARED_FLAGS="-o libc++.1.dylib \
 -dynamiclib -nodefaultlibs -current_version 1 \
 -compatibility_version 1 \
 -install_name /usr/lib/libc++.1.dylib \
 -Wl,-reexport_library,/usr/lib/libc++abi.dylib \
 -Wl,-unexported_symbols_list,libc++unexp.exp \
 /usr/lib/libSystem.B.dylib"
 else
 if [ -n "$SDKROOT" ]
 then
 EXTRA_FLAGS+="-isysroot ${SDKROOT} "
 if echo "${RC_ARCHS}" | grep -q "armv7" 
 then
 RE_EXPORT_LINE="${SDKROOT}/usr/lib/libc++abi.dylib -Wl,-reexported_symbols_list,libc++sjlj-abi.exp"
 else
 RE_EXPORT_LINE="-Wl,-reexport_library,${SDKROOT}/usr/lib/libc++abi.dylib"
 fi
 CXX=`xcrun -sdk "${SDKROOT}" -find clang++`
 CC=`xcrun -sdk "${SDKROOT}" -find clang`
 else
 # Check if we have _LIBCPPABI_VERSION, to determine the reexport list to use.
 if (echo "#include <cxxabi.h>" | $CXX -E -dM -x c++ - | \
 grep _LIBCPPABI_VERSION > /dev/null)
 then
 RE_EXPORT_LINE="/usr/lib/libc++abi.dylib -Wl,-reexported_symbols_list,libc++abi2.exp"
 else
 RE_EXPORT_LINE="/usr/lib/libc++abi.dylib -Wl,-reexported_symbols_list,libc++abi.exp"
 fi
 fi
 LDSHARED_FLAGS="-o libc++.1.dylib \
 -dynamiclib -nodefaultlibs \
 -current_version ${RC_ProjectSourceVersion} \
 -compatibility_version 1 \
 -install_name /usr/lib/libc++.1.dylib \
 -lSystem \
 -Wl,-unexported_symbols_list,libc++unexp.exp \
 ${RE_EXPORT_LINE} \
 -Wl,-force_symbols_not_weak_list,notweak.exp \
 -Wl,-force_symbols_weak_list,weak.exp"
 fi
 ;;
 *-*-mingw*)
 # FIXME: removing libgcc and libsupc++ dependencies means porting libcxxrt and LLVM/compiler-rt
 SOEXT=dll
 LDSHARED_FLAGS="-o libc++.dll \
 -shared -nodefaultlibs -Wl,--export-all-symbols -Wl,--allow-multiple-definition -Wl,--out-implib,libc++.dll.a \
 -lsupc++ -lpthread -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcr100 -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt"
 ;;
 *-ibm-*)
 hostOS=`uname`
 hostOS=`echo $hostOS | sed -e "s/\s+$//"`
 hostOS=`echo $hostOS | tr '[A-Z]' '[a-z]'`

 if [ $hostOS = "linux" ]
 then
 LDSHARED_FLAGS="-o libc++.so.1 \
 -qmkshrobj -Wl,-soname,libc++.so.1 \
 -lpthread -lrt -lc -lstdc++"
 EXTRA_FLAGS="-qlanglvl=extended0x -D__GLIBCXX__=1"
 else
 LDSHARED_FLAGS="-o shr.o -qmkshrobj -lpthread -bnoquiet"
 EXTRA_FLAGS="-qlanglvl=extended0x"
 fi
 RC_CFLAGS="-qpic=large"
 ;;
 *)
 RC_CFLAGS="-fPIC"
 SOEXT=so
 LDSHARED_FLAGS="-o libc++.so.1.0 \
 -shared -nodefaultlibs -Wl,-soname,libc++.so.1 \
 -lpthread -lrt -lc -lstdc++"
 ;;
esac

if [ -z "$RC_XBS" ]
then
 rm -f libc++.1.$SOEXT*
fi

set -x

for FILE in ../src/*.cpp; do
 $CXX -c -g -Os $RC_CFLAGS $EXTRA_FLAGS -I../include $FILE
done
case $TRIPLE in
 *-*-mingw*)
 for FILE in ../src/support/win32/*.cpp; do
 $CXX -c -g -Os $RC_CFLAGS $EXTRA_FLAGS -I../include $FILE
 done
 ;;
esac
$CC *.o $RC_CFLAGS $LDSHARED_FLAGS $EXTRA_FLAGS

#libtool -static -o libc++.a *.o

# Create the link for the final library name, so that we can use this directory
# as a link target for the tests.
case $TRIPLE in
 *-apple-*)
 rm -f libc++.dylib
 ln -s libc++.1.dylib libc++.dylib
 ;;
 *-*-mingw*)
 ;;
 *-ibm-*)
 if [ $hostOS = "linux" ]
 then
 rm -f libc++.so
 ln -s libc++.so.1 libc++.so
 else #AIX
 rm -f libc++.a
 ar r libc++.a shr.o
 fi
 ;;
 *)
 rm -f libc++.so
 ln -s libc++.so.1 libc++.so
 ;;
esac

if [ -z "$RC_XBS" ]
then
 rm *.o
fi