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#! /bin/sh -e
buildinputs="$binutils"
. $stdenv/setup
tar xvfj $src
if test "$enforcePurity" = "1"; then
# Disable the standard include directories.
cd gcc-*
cat >> ./gcc/cppdefault.h <<EOF
#undef LOCAL_INCLUDE_DIR
#undef SYSTEM_INCLUDE_DIR
#undef STANDARD_INCLUDE_DIR
EOF
cd ..
fi
langs="c"
if test -n "$langCC"; then
langs="$langs,c++"
fi
if test -n "$langF77"; then
langs="$langs,f77"
fi
# Configure.
mkdir build
cd build
../gcc-*/configure --prefix=$out --enable-languages="$langs"
if test "$enforcePurity" = "1"; then
# Patch some of the makefiles to force linking against our own glibc.
. $NIX_GCC/nix-support/add-flags # add glibc/gcc flags
extraflags="-Wl,-s $NIX_CFLAGS_COMPILE $NIX_CFLAGS_LINK"
for i in $NIX_LDFLAGS; do
extraflags="$extraflags -Wl,$i"
done
mf=Makefile
sed \
-e "s^FLAGS_FOR_TARGET =\(.*\)^FLAGS_FOR_TARGET = \1 $extraflags^" \
< $mf > $mf.tmp
mv $mf.tmp $mf
mf=gcc/Makefile
sed \
-e "s^X_CFLAGS =\(.*\)^X_CFLAGS = \1 $extraflags^" \
< $mf > $mf.tmp
mv $mf.tmp $mf
# Patch gcc/Makefile to prevent fixinc.sh from "fixing" system header files
# from /usr/include.
mf=gcc/Makefile
sed \
-e "s^NATIVE_SYSTEM_HEADER_DIR =\(.*\)^NATIVE_SYSTEM_HEADER_DIR = /fixinc-disabled^" \
< $mf > $mf.tmp
mv $mf.tmp $mf
fi
# Build and install.
make bootstrap
make install
find $out -name "*.a" -exec strip -S {} \;
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