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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
if test -e $NIX_CC/nix-support/orig-libc; then
# Figure out what extra flags to pass to the gcc compilers
# being generated to make sure that they use our glibc.
extraCFlags="$(cat $NIX_CC/nix-support/libc-cflags)"
extraLDFlags="$(cat $NIX_CC/nix-support/libc-ldflags) $(cat $NIX_CC/nix-support/libc-ldflags-before)"
# Use *real* header files, otherwise a limits.h is generated
# that does not include Glibc's limits.h (notably missing
# SSIZE_MAX, which breaks the build).
export NIX_FIXINC_DUMMY=$(cat $NIX_CC/nix-support/orig-libc)/include
else
# Hack: support impure environments.
extraCFlags="-isystem /usr/include"
extraLDFlags="-L/usr/lib64 -L/usr/lib"
export NIX_FIXINC_DUMMY=/usr/include
fi
extraCFlags="-g0 -I$gmp/include -I$mpfr/include $extraCFlags"
extraLDFlags="--strip-debug $extraLDFlags"
export NIX_EXTRA_CFLAGS=$extraCFlags
for i in $extraLDFlags; do
export NIX_EXTRA_LDFLAGS="$NIX_EXTRA_LDFLAGS -Wl,$i"
done
if test -n "$targetConfig"; then
if test -z "$crossStageStatic"; then
extraXCFlags="-B${libcCross}/lib -idirafter ${libcCross}/include"
extraXLDFlags="-L${libcCross}/lib"
export NIX_EXTRA_CFLAGS_TARGET=$extraXCFlags
for i in $extraXLDFlags; do
export NIX_EXTRA_LDFLAGS_TARGET="$NIX_EXTRA_LDFLAGS_TARGET -Wl,$i"
done
fi
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
NATIVE_SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
CFLAGS_FOR_TARGET="$NIX_EXTRA_CFLAGS_TARGET $NIX_EXTRA_LDFLAGS_TARGET" \
LDFLAGS_FOR_TARGET="$NIX_EXTRA_CFLAGS_TARGET $NIX_EXTRA_LDFLAGS_TARGET" \
)
else
export NIX_EXTRA_CFLAGS_TARGET=$NIX_EXTRA_CFLAGS
export NIX_EXTRA_LDFLAGS_TARGET=$NIX_EXTRA_LDFLAGS
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
NATIVE_SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
CFLAGS_FOR_BUILD="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
CFLAGS_FOR_TARGET="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
LDFLAGS_FOR_BUILD="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
LDFLAGS_FOR_TARGET="$NIX_EXTRA_CFLAGS $NIX_EXTRA_LDFLAGS" \
)
fi
if test -n "$targetConfig" -a "$crossStageStatic" == 1; then
# We don't want the gcc build to assume there will be a libc providing
# limits.h in this stagae
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
LIMITS_H_TEST=false \
)
else
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
LIMITS_H_TEST=true \
)
fi
fi
if test -n "$targetConfig"; then
# The host strip will destroy everything in the target binaries otherwise
dontStrip=1
fi
preConfigure() {
# Perform the build in a different directory.
mkdir ../build
cd ../build
configureScript=../$sourceRoot/configure
}
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
rm -rf $out/lib/gcc/*/*/install-tools
# Get rid of some "fixed" header files
rm -rf $out/lib/gcc/*/*/include/root
# Replace hard links for i686-pc-linux-gnu-gcc etc. with symlinks.
for i in $out/bin/*-gcc*; do
if cmp -s $out/bin/gcc $i; then
ln -sfn gcc $i
fi
done
for i in $out/bin/*-c++* $out/bin/*-g++*; do
if cmp -s $out/bin/g++ $i; then
ln -sfn g++ $i
fi
done
eval "$postInstallGhdl"
}
if test -z "$targetConfig"; then
if test -z "$profiledCompiler"; then
buildFlags="bootstrap $buildFlags"
else
buildFlags="profiledbootstrap $buildFlags"
fi
else
:
# buildFlags="all-gcc all-target-libgcc $buildFlags"
# installTargets="install-gcc install-target-libgcc"
fi
genericBuild
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