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source $stdenv/setup
export NIX_FIXINC_DUMMY=$NIX_BUILD_TOP/dummy
mkdir $NIX_FIXINC_DUMMY
# libstdc++ needs this; otherwise it will use /lib/cpp, which is a Bad
# Thing.
export CPP="gcc -E"
if test "$staticCompiler" = "1"; then
EXTRA_LDFLAGS="-static"
else
EXTRA_LDFLAGS=""
fi
# GCC interprets empty paths as ".", which we don't want.
if test -z "$CPATH"; then unset CPATH; fi
if test -z "$LIBRARY_PATH"; then unset LIBRARY_PATH; fi
echo "\$CPATH is \`$CPATH'"
echo "\$LIBRARY_PATH is \`$LIBRARY_PATH'"
if test "$noSysDirs" = "1"; then
if test -e $NIX_GCC/nix-support/orig-libc; then
# Figure out what extra flags to pass to the gcc compilers
# being generated to make sure that they use our glibc.
extraFlags="$(cat $NIX_GCC/nix-support/libc-cflags)"
extraLDFlags="$(cat $NIX_GCC/nix-support/libc-ldflags) $(cat $NIX_GCC/nix-support/libc-ldflags-before)"
# Use *real* header files, otherwise a limits.h is generated
# that does not include Glibc's limits.h (notably missing
# SSIZE_MAX, which breaks the build).
export NIX_FIXINC_DUMMY=$(cat $NIX_GCC/nix-support/orig-libc)/include
# The path to the Glibc binaries such as `crti.o'.
glibc_libdir="$(cat $NIX_GCC/nix-support/orig-libc)/lib"
else
# Hack: support impure environments.
extraFlags="-isystem /usr/include"
extraLDFlags="-L/usr/lib64 -L/usr/lib"
glibc_libdir="/usr/lib"
export NIX_FIXINC_DUMMY=/usr/include
fi
extraFlags="-g0 -O2 -I$NIX_FIXINC_DUMMY $extraFlags"
extraLDFlags="--strip-debug -L$glibc_libdir -rpath $glibc_libdir $extraLDFlags"
EXTRA_FLAGS="$extraFlags"
for i in $extraLDFlags; do
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,$i"
done
if test -z "$targetConfig"; then
EXTRA_TARGET_CFLAGS="$EXTRA_FLAGS"
EXTRA_TARGET_LDFLAGS="$EXTRA_LDFLAGS"
fi
# CFLAGS_FOR_TARGET are needed for the libstdc++ configure script to find
# the startfiles.
# FLAGS_FOR_TARGET are needed for the target libraries to receive the -Bxxx
# for the startfiles.
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
NATIVE_SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
SYSTEM_HEADER_DIR="$NIX_FIXINC_DUMMY" \
CFLAGS_FOR_BUILD="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
CFLAGS_FOR_TARGET="$EXTRA_TARGET_CFLAGS" \
FLAGS_FOR_TARGET="$EXTRA_TARGET_CFLAGS $EXTRA_TARGET_LDFLAGS" \
LDFLAGS_FOR_BUILD="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
LDFLAGS_FOR_TARGET="$EXTRA_TARGET_LDFLAGS" \
)
if test -z "$targetConfig"; then
makeFlagsArray=( \
"${makeFlagsArray[@]}" \
BOOT_CFLAGS="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
BOOT_LDFLAGS="$EXTRA_FLAGS $EXTRA_LDFLAGS" \
)
fi
if test -n "$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 some important details of the objects
dontStrip=1
fi
preConfigure() {
if test -n "$newlibSrc"; then
tar xvf "$newlibSrc" -C ..
ln -s ../newlib-*/newlib newlib
# Patch to get armvt5el working:
sed -i -e 's/ arm)/ arm*)/' newlib/configure.host
fi
# Bug - they packaged zlib
if test -d "zlib"; then
# This breaks the build without-headers, which should build only
# the target libgcc as target libraries.
# See 'configure:5370'
rm -Rf zlib
fi
if test -n "$crossMingw" -a -n "$crossStageStatic"; then
mkdir -p ../mingw
# --with-build-sysroot expects that:
cp -R $libcCross/include ../mingw
configureFlags="$configureFlags --with-build-sysroot=`pwd`/.."
fi
# 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
fi
genericBuild
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