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name: stage2-gcc
kind: chunk
configure-commands:
- mkdir o
# In other projects we specify the sysroot location using CPPFLAGS. Here,
# that breaks because GCC compiles stuff for the *build* machine, too ...
# and this requires using the host's compiler, which cannot use the same
# set of CPPFLAGS as the target. If we specify the sysroot using CC instead
# then we don't interfere, because we are only specifying the *host* C
# compiler.
#
# Configure flag notes:
# 1. It's vital that this compiler targets the bootstrap machine
# (TARGET_STAGE1) so that the stage 1 GCC is used instead of the
# compiler of the build machine.
# 2. Disable searching /usr/local/include for headers
# 3. This flag causes the correct --sysroot flag to be passed when calling
# stage 1 GCC.
# 4. C++ is built in stage 3.
# 5. Standard flags. See gcc.morph.
- |
export STAGE2_SYSROOT="$(dirname $(pwd))"
export CC="$TARGET_STAGE1-gcc --sysroot=$STAGE2_SYSROOT"
export LDFLAGS="-Wl,--sysroot=$STAGE2_SYSROOT"
cd o && ../configure \
$(../morph-arch-config) \
`# [1]` --build=$(sh ../config.guess) \
--host=$TARGET_STAGE1 \
--target=$TARGET_STAGE1 \
--prefix="$PREFIX" \
`# [2]` --with-local-prefix=$PREFIX \
`# [3]` --with-build-sysroot="$STAGE2_SYSROOT" \
--disable-bootstrap \
--enable-clocale=gnu --enable-shared --enable-threads=posix \
`# [4]` --enable-languages=c \
`# [5]` --libdir=$PREFIX/lib \
--disable-libgomp --disable-multilib --disable-nls \
--without-cloog --without-ppl \
--with-mpfr-include="$(pwd)/../mpfr/src" \
--with-mpfr-lib="$(pwd)/mpfr/src/.libs"
build-commands:
- |
export STAGE2_SYSROOT="$(dirname $(pwd))"
cd o && make
install-commands:
- cd o && make DESTDIR="$DESTDIR" install
# Stage 3 builds need to link against this file in the location that
# it will be in the final system, so we make a temporary link now.
#
# On x86_64 GCC resolutely installs its libraries into lib64. To fix this
# would require hobbling the MULTILIB_OSDIRNAMES field in
# gcc/config/i386/t-linux64 and this might break things, so for now we
# tolerate the inconsistency.
- |
if [ "$(echo $TARGET | cut -c -6)" = "x86_64" ]; then
libdir=lib64
else
libdir=lib
fi
install -d "$DESTDIR/lib"
ln -s "$PREFIX/$libdir/libgcc_s.so" "$DESTDIR/lib/"
ln -s "$PREFIX/$libdir/libgcc_s.so.1" "$DESTDIR/lib/"
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