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#
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# . ./build.vars and set -o errexit are assumed.
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#
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# Order: stage1, runtime, full, native
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if [ "x${3}" = "xruntime" ]\
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||   [ "x${3}" = "xfull" ]; then
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	set_build_dir cbb-gcc-${PKG_GCC_VERSION} cross;
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	cd ${PKG_BUILD_DIR};
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	if [ "x${3}" = "xruntime" ]; then
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		# GCC, compiler runtime.
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		if ! is_build_script_done build; then
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			make ${MAKEFLAGS} all-target-libgcc;
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			set_build_script_done build -install;
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		fi;
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		if ! is_build_script_done install; then
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			make ${MAKEFLAGS} install-target-libgcc;
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			set_build_script_done install finish;
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		fi;
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	elif [ "x${3}" = "xfull" ]; then
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		# GCC, everything else.
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		if ! is_build_script_done build1; then
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			make ${MAKEFLAGS} all-target-libstdc++-v3;
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			set_build_script_done build1 -install1;
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		fi;
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		if ! is_build_script_done install1; then
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			make ${MAKEFLAGS} install-target-libstdc++-v3;
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			set_build_script_done install1 -build2;
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		fi;
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		if ! is_build_script_done build2; then
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			make ${MAKEFLAGS};
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			set_build_script_done build2 -install2;
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		fi;
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		if ! is_build_script_done install2; then
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			make ${MAKEFLAGS} install;
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			set_build_script_done install2 finish;
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		fi;
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	fi;
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else
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	if [ "x${3}" = "xstage1" ]; then
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		# GCC, stage1.
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		if ! is_build_script_done fetch; then
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			rm_if_exists cbb-gcc-${PKG_GCC_VERSION};
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			fetch_git cbb-gcc-${PKG_GCC_VERSION}		\
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			${GITROOT}/cbb/cbb-gcc-${PKG_GCC_VERSION};
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			set_build_script_done fetch -configure;
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		fi;
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		set_build_dir cbb-gcc-${PKG_GCC_VERSION} cross;
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		export	cbb_ldflags_for_target=--sysroot=${PREFIX_LVL}	\
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			cbb_sysroot_for_libgcc=${PREFIX_LVL}		\
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			cbb_target=${TARGET}				\
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			cbb_neutral_libiberty=no			\
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			cbb_xgcc_for_specs=${WORKDIR}/${PKG_BUILD_DIR}/gcc/xgcc;
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		GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PREFIX_LVL}";
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	elif [ "x${3}" = "xnative" ]; then
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		# GCC, native.
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		set_build_dir cbb-gcc-${PKG_GCC_VERSION} native;
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		export 	cbb_ldflags_for_target=--sysroot=${PREFIX_LVL}	\
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			cbb_sysroot_for_libgcc=${PREFIX_LVL}		\
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			cbb_target=${TARGET}				\
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			cbb_xgcc_for_specs=${TARGET}-gcc;
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		GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PREFIX_LVL}";
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	fi;
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	GCCFLAGS="${CFLAGS:+${CFLAGS} }--include $(readlink -f ${WORKDIR}/cbb-gcc-${PKG_GCC_VERSION}/libc/cbb-musl-pe.h)";
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	set_env_vars "${GCCFLAGS}" CFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS CXXFLAGS_FOR_BUILD;
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	set_env_vars "${GCCTARGET_FLAGS}" CFLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET;
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	set_env_vars "${CFLAGS_FOR_BUILD}" cbb_cflags_for_stage1 cbb_cflags_for_stage2 cbb_cflags_for_stage3 cbb_cflags_for_stage4;
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	export CFLAGS CXXFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS_FOR_BUILD CFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET;
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	if ! is_build_script_done configure; then
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		if [ "x${3}" = "xstage1" ]; then
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			mkdir -p ${PREFIX_LVL}/include;
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			[ \! -d ${PREFIX_LVL}/usr ] &&			\
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				ln -s . ${PREFIX_LVL}/usr;
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			_configure_args="--prefix=${PREFIX} --with-sysroot=${PREFIX_LVL}";
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		elif [ "x${3}" = "xnative" ]; then
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			mkdir -p ${PREFIX_LVL}/${TARGET};
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			if [ \! -d ${PREFIX_LVL}/${TARGET}/usr ]; then
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				ln -s . ${PREFIX_LVL}/${TARGET}/usr;
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			fi;
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			_configure_args="			\
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				--host=x86_64-nt64-midipix	\
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				--prefix=/			\
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				--with-elf=${PREFIX_LVL}	\
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				--with-gmp=${PREFIX_LVL}	\
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				--with-mpc=${PREFIX_LVL}	\
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				--with-mpfr=${PREFIX_LVL}	\
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				--with-sysroot=";
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		fi;
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		rm_if_exists -m -c ${PKG_BUILD_DIR};
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		../cbb-gcc-${PKG_GCC_VERSION}/configure		\
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			--disable-bootstrap			\
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			--disable-libmudflap			\
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			--disable-multilib			\
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			--disable-nls				\
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			--disable-obsolete			\
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			--disable-sjlj-exceptions		\
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			--disable-symvers			\
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			--enable-canonical-system-headers	\
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			--enable-__cxa_atexit			\
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			--enable-debug				\
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			--enable-gnu-indirect-function		\
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			--enable-gnu-unique-object		\
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			--enable-initfini-array			\
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			--enable-languages=c,c++,objc,lto	\
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			--enable-libstdcxx-debug		\
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			--enable-lto				\
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			--enable-multiarch			\
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			--enable-secureplt			\
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			--enable-shared				\
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			--enable-threads=posix			\
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			--target=${TARGET}			\
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			--with-fpmath=sse			\
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			${_configure_args};
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		set_build_script_done configure clean -build;
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	else
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		cd ${PKG_BUILD_DIR};
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	fi;
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	if ! is_build_script_done clean; then
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		make ${MAKEFLAGS} clean;
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		set_build_script_done clean -build;
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	fi;
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	if ! is_build_script_done build; then
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		if [ "x${3}" = "xstage1" ]; then
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			make ${MAKEFLAGS} all-gcc;
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		elif [ "x${3}" = "xnative" ]; then
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			make ${MAKEFLAGS} all-gcc;
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			make ${MAKEFLAGS} all-target-libgcc;
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			make ${MAKEFLAGS} all-target-libstdc++-v3;
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			make ${MAKEFLAGS} all;
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		fi;
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		set_build_script_done build -install;
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	fi;
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	if ! is_build_script_done install; then
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		if [ "x${3}" = "xstage1" ]; then
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			make ${MAKEFLAGS} install-gcc;
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		elif [ "x${3}" = "xnative" ]; then
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			make ${MAKEFLAGS} DESTDIR=${PREFIX_LVL} install;
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		fi;
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		set_build_script_done install finish;
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	fi;
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fi;
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# vim:filetype=sh