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source $stdenv/setup
export NIX_FIXINC_DUMMY=$NIX_BUILD_TOP/dummy
mkdir $NIX_FIXINC_DUMMY
# libstdc++ needs this; otherwise it will use /lib/cpp, which is a Bad
# Thing.
export CPP="gcc -E"
if test "$noSysDirs" = "1"; then
# Figure out what extra flags to pass to the gcc compilers being
# generated to make sure that they use our glibc.
if test -e $NIX_GCC/nix-support/orig-glibc; then
glibc=$(cat $NIX_GCC/nix-support/orig-glibc)
# Ugh. Copied from gcc-wrapper/builder.sh. We can't just
# source in $NIX_GCC/nix-support/add-flags, since that would
# cause *this* GCC to be linked against the *previous* GCC.
# Need some more modularity there.
extraCFlags="-B$glibc/lib -isystem $glibc/include"
extraLDFlags="-B$glibc/lib -L$glibc/lib -Wl,-s \
-Wl,-dynamic-linker,$glibc/lib/ld-linux.so.2"
# Oh, what a hack. I should be shot for this. In stage 1, we
# should link against the previous GCC, but not afterwards.
# Otherwise we retain a dependency. However, ld-wrapper,
# which adds the linker flags for the previous GCC, is also
# used in stage 2/3. We can prevent it from adding them by
# NIX_GLIBC_FLAGS_SET, but then gcc-wrapper will also not add
# them, thereby causing stage 1 to fail. So we use a trick to
# only set the flags in gcc-wrapper.
hook=$(pwd)/ld-wrapper-hook
echo "NIX_GLIBC_FLAGS_SET=1" > $hook
export NIX_LD_WRAPPER_START_HOOK=$hook
# Use *real* header files, otherwise a limits.h is generated
# that does not include Glibc's limits.h (notably missing
# SSIZE_MAX, which breaks the build).
export NIX_FIXINC_DUMMY=$glibc/include
fi
export NIX_EXTRA_CFLAGS=$extraCFlags
export NIX_EXTRA_LDFLAGS=$extraLDFlags
export CFLAGS=$extraCFlags
export CXXFLAGS=$extraCFlags
export LDFLAGS=$extraLDFlags
fi
preConfigure() {
# Determine the frontends to build.
langs="c"
if test -n "$langCC"; then
langs="$langs,c++"
fi
if test -n "$langF77"; then
langs="$langs,f95"
fi
if test -n "$langObjC"; then
langs="$langs,objc"
fi
# Perform the build in a different directory.
mkdir ../build
cd ../build
configureScript=../$sourceRoot/configure
configureFlags="--enable-languages=$langs --disable-libstdcxx-pch --disable-libstdcxx-debug --disable-multilib --with-gxx-include-dir=${STDCXX_INCDIR} --host=x86_64-apple-darwin10 --build=x86_64-apple-darwin10 --target=x86_64-apple-darwin10"
}
postInstall() {
# Remove precompiled headers for now. They are very big and
# probably not very useful yet.
find $out/include -name "*.gch" -exec rm -rf {} \; -prune
# Remove `fixincl' to prevent a retained dependency on the
# previous gcc.
rm -rf $out/libexec/gcc/*/*/install-tools
}
postUnpack() {
mv $libstdcxx/libstdcxx $sourceRoot/
}
STDCXX_INCDIR="$out/include/c++/4.2.1"
genericBuild
echo '-------------------------------------------------------------------------------------------------------------------------'
echo 'libstdcxx-16'
echo '-------------------------------------------------------------------------------------------------------------------------'
cd ..
pwd
preConfigure() {
# Perform the build in a different directory.
mkdir ../build_libstdcxx
cd ../build_libstdcxx
ln -s ../build/gcc gcc
configureScript=../$sourceRoot/libstdcxx/configure
configureFlags="--disable-libstdcxx-pch --disable-libstdcxx-debug --disable-multilib --with-gxx-include-dir=${STDCXX_INCDIR}"
}
unpackPhase () {
echo '-'
}
postInstall() {
echo '-'
echo "cp -v ${STDCXX_INCDIR}/*/bits/* ${STDCXX_INCDIR}/bits/"
cp -v ${STDCXX_INCDIR}/*/bits/* ${STDCXX_INCDIR}/bits/
}
patchPhase() {
echo '-'
}
genericBuild
ln -s $out/lib/x86_64 $out/lib64
|
