build.sh: 2nd refactoring pt. I.

build/{gcc,musl}.*.build: refactored into vars/{gcc,musl}.*.build.
build/pkg.build: merged w/ build.sh (structurally) and refactored into subr/pkg_*.subr (implementations.)
patches/gcc_native_x86_64_w64_mingw32.local.patch: fix wrong filename.
subr/build.subr: merges source_scripts() into build.sh.
subr/pkg.subr: accept either of ${PKG_..._{URL,VERSION}} when checking for missing entries in var/build.vars.
vars/build.vars: adds vars for {gcc,musl}_*.
vars/psxstub.vars: convert to pkg_..._all(); call pkg_fetch().

14 files changed, 567 insertions, 24 deletions

diff --git a/vars/build.vars b/vars/build.vars
index 13606a86..f7f84a0b 100644
--- a/vars/build.vars
+++ b/vars/build.vars
@@ -87,7 +87,7 @@ INVARIANTS_PACKAGES="chainport";
 HOST_TOOLCHAIN_BUILD_TYPE="host";
 HOST_TOOLCHAIN_CFLAGS_CONFIGURE="${HOST_TOOLCHAIN_CFLAGS_CONFIGURE_DEFAULT}";
 HOST_TOOLCHAIN_CONFIGURE_ARGS="-C --disable-nls --host=${TARGET} --prefix= --target=${TARGET}";
-HOST_TOOLCHAIN_PACKAGES="slibtool_host perk_host binutils_host gcc.stage1 psxstub musl.no-complex gcc.runtime musl.full gcc.libstdc++-v3 gcc.full pkgconf_host file_host binutils_host_mingw_w64 gcc.host.mingw_w64 mdso_host";
+HOST_TOOLCHAIN_PACKAGES="slibtool_host perk_host binutils_host binutils_host_x86_64_w64_mingw32 gcc_stage1_x86_64_w64_mingw32 gcc_stage1 psxstub musl_no_complex gcc_runtime musl_full gcc_libstdcpp_v3 gcc_full file_host mdso_host pkgconf_host";
 HOST_TOOLCHAIN_PREFIX="${PREFIX_CROSS}";
 : ${PKG_SLIBTOOL_HOST_URL:=${GITROOT}/slibtool};
 : ${PKG_SLIBTOOL_HOST_URL_TYPE:=git};
@@ -104,29 +104,37 @@ HOST_TOOLCHAIN_PREFIX="${PREFIX_CROSS}";
 : ${PKG_BINUTILS_HOST_URL:=ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_HOST_VERSION}.tar.bz2};
 : ${PKG_BINUTILS_HOST_CONFIGURE_ARGS:=--disable-werror --prefix=${PREFIX} --target=${TARGET} --with-sysroot=${PREFIX_CROSS}};
 : ${PKG_BINUTILS_HOST_SLIBTOOL:=slibtool-static};
-: ${PKG_BINUTILS_HOST_MINGW_W64_SHA256SUM:=250d3b2925c6b211fb16173b0b25bc091c58829fbcad3eb849645e0af52cf7fa};
-: ${PKG_BINUTILS_HOST_MINGW_W64_VERSION:=2.24.51};
-: ${PKG_BINUTILS_HOST_MINGW_W64_URL:=ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_HOST_MINGW_W64_VERSION}.tar.bz2};
-: ${PKG_BINUTILS_HOST_MINGW_W64_CONFIGURE_ARGS:=--disable-werror --prefix=${PREFIX} --target=x86_64-w64-mingw32 --with-sysroot=${PREFIX_CROSS}};
-: ${PKG_BINUTILS_HOST_MINGW_W64_SLIBTOOL:=slibtool-static};
-: ${PKG_BINUTILS_HOST_MINGW_W64_TARGET:=x86_64-w64-mingw32};
+: ${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_SHA256SUM:=250d3b2925c6b211fb16173b0b25bc091c58829fbcad3eb849645e0af52cf7fa};
+: ${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_VERSION:=2.24.51};
+: ${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_URL:=ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_VERSION}.tar.bz2};
+: ${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_CONFIGURE_ARGS:=--disable-werror --prefix=${PREFIX} --target=x86_64-w64-mingw32 --with-sysroot=${PREFIX_CROSS}};
+: ${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_SLIBTOOL:=slibtool-static};
+: ${PKG_BINUTILS_HOST_X86_64_W64_MINGW32_TARGET:=x86_64-w64-mingw32};
+: ${PKG_GCC_STAGE1_VERSION:=4.6.4};
+: ${PKG_PSXSTUB_URL:=${GITROOT}/psxstub};
+: ${PKG_PSXSTUB_URL_TYPE:=git};
+: ${PKG_PSXSTUB_URL:=${GITROOT}/psxstub};
+: ${PKG_MUSL_NO_COMPLEX_VERSION:=1.1.12};
+: ${PKG_GCC_RUNTIME_VERSION:=4.6.4};
+: ${PKG_MUSL_FULL_VERSION:=1.1.12};
+: ${PKG_GCC_LIBSTDCPP_V3_VERSION:=4.6.4};
+: ${PKG_GCC_FULL_VERSION:=4.6.4};
+: ${PKG_GCC_STAGE1_X86_64_W64_MINGW32_VERSION:=4.6.4};
+: ${PKG_FILE_HOST_SHA256SUM:=ea661277cd39bf8f063d3a83ee875432cc3680494169f952787e002bdd3884c0};
+: ${PKG_FILE_HOST_VERSION:=5.29};
+: ${PKG_FILE_HOST_URL:=ftp://ftp.astron.com/pub/file/file-${PKG_FILE_HOST_VERSION}.tar.gz};
+: ${PKG_FILE_HOST_CONFIGURE_ARGS:="-C --prefix=${PREFIX}"};
 : ${PKG_MDSO_HOST_URL:=${GITROOT}/mdso};
 : ${PKG_MDSO_HOST_URL_TYPE:=git};
 : ${PKG_MDSO_HOST_CONFIGURE_ARGS:="--prefix=/usr"};
 : ${PKG_MDSO_HOST_INSTALL_FILES:="@mdso=bin/${TARGET}-mdso"};
 : ${PKG_MDSO_HOST_MAKEFLAGS_INSTALL:="DESTDIR=${PREFIX}"};
 : ${PKG_MDSO_HOST_PREFIX:=${PREFIX}};
-: ${PKG_PSXSTUB_URL:=${GITROOT}/psxstub};
-: ${PKG_PSXSTUB_URL_TYPE:=git};
 : ${PKG_PKGCONF_HOST_SHA256SUM:=7ec8b516e655e247f4ba976837cee808134785819ab8f538f652fe919cc6c09f};
 : ${PKG_PKGCONF_HOST_VERSION:=0.9.12};
 : ${PKG_PKGCONF_HOST_URL:=https://github.com/pkgconf/pkgconf/releases/download/pkgconf-${PKG_PKGCONF_HOST_VERSION}/pkgconf-${PKG_PKGCONF_HOST_VERSION}.tar.bz2};
 : ${PKG_PKGCONF_HOST_CONFIGURE_ARGS:="-C --prefix=${PREFIX_NATIVE}"};
 : ${PKG_PKGCONF_HOST_MAKEFLAGS_INSTALL_EXTRA:=prefix=${PREFIX}};
-: ${PKG_FILE_HOST_SHA256SUM:=ea661277cd39bf8f063d3a83ee875432cc3680494169f952787e002bdd3884c0};
-: ${PKG_FILE_HOST_VERSION:=5.29};
-: ${PKG_FILE_HOST_URL:=ftp://ftp.astron.com/pub/file/file-${PKG_FILE_HOST_VERSION}.tar.gz};
-: ${PKG_FILE_HOST_CONFIGURE_ARGS:="-C --prefix=${PREFIX}"};
 
 #
 # Build target native_toolchain
@@ -134,7 +142,7 @@ HOST_TOOLCHAIN_PREFIX="${PREFIX_CROSS}";
 NATIVE_TOOLCHAIN_CFLAGS_CONFIGURE="${NATIVE_TOOLCHAIN_CFLAGS_CONFIGURE_DEFAULT}";
 NATIVE_TOOLCHAIN_CONFIGURE_ARGS="--disable-nls --host=${TARGET} --prefix=/ --target=${TARGET}";
 NATIVE_TOOLCHAIN_MAKEFLAGS_INSTALL="DESTDIR=${PREFIX_NATIVE}";
-NATIVE_TOOLCHAIN_PACKAGES="slibtool perk pkgconf gmp mpfr mpc libelf binutils binutils_native_mingw_w64 musl.native gcc.native mdso gcc.stage1.mingw_w64";
+NATIVE_TOOLCHAIN_PACKAGES="slibtool perk pkgconf gmp mpfr mpc libelf binutils binutils_x86_64_w64_mingw32 musl_native gcc_native mdso";
 NATIVE_TOOLCHAIN_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_SLIBTOOL_URL:=git://midipix.org/slibtool};
 : ${PKG_SLIBTOOL_URL_TYPE:=git};
@@ -172,15 +180,15 @@ NATIVE_TOOLCHAIN_PREFIX="${PREFIX_NATIVE}";
 : ${PKG_BINUTILS_URL:=ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_VERSION}.tar.bz2};
 : ${PKG_BINUTILS_CONFIGURE_ARGS_EXTRA:=--with-libelf=${PREFIX_NATIVE} --with-gmp=${PREFIX_NATIVE} --with-mpc=${PREFIX_NATIVE} --with-mpfr=${PREFIX_NATIVE} --with-sysroot=/};
 : ${PKG_BINUTILS_SLIBTOOL:=slibtool-static};
-: ${PKG_BINUTILS_NATIVE_MINGW_W64_SHA256SUM:=250d3b2925c6b211fb16173b0b25bc091c58829fbcad3eb849645e0af52cf7fa};
-: ${PKG_BINUTILS_NATIVE_MINGW_W64_VERSION:=2.24.51};
-: ${PKG_BINUTILS_NATIVE_MINGW_W64_URL:=ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_NATIVE_MINGW_W64_VERSION}.tar.bz2};
-: ${PKG_BINUTILS_NATIVE_MINGW_W64_CONFIGURE_ARGS:="--disable-nls --host=${TARGET} --prefix=/ --target=x86_64-w64-mingw32 --with-libelf=${PREFIX_NATIVE} --with-gmp=${PREFIX_NATIVE} --with-mpc=${PREFIX_NATIVE} --with-mpfr=${PREFIX_NATIVE} --with-sysroot=/"};
-: ${PKG_BINUTILS_NATIVE_MINGW_W64_SLIBTOOL:=slibtool-static};
-: ${PKG_MUSL_SHA256SUM:=720b83c7e276b4b679c0bffe9509340d5f81fd601508e607e708177df0d31c0e};
-: ${PKG_MUSL_VERSION:=1.1.12};
-: ${PKG_MUSL_URL:=http://www.musl-libc.org/releases/musl-${PKG_MUSL_VERSION}.tar.gz};
-: ${PKG_GCC_VERSION:=4.6.4};
+: ${PKG_BINUTILS_X86_64_W64_MINGW32_SHA256SUM:=250d3b2925c6b211fb16173b0b25bc091c58829fbcad3eb849645e0af52cf7fa};
+: ${PKG_BINUTILS_X86_64_W64_MINGW32_VERSION:=2.24.51};
+: ${PKG_BINUTILS_X86_64_W64_MINGW32_URL:=ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_X86_64_W64_MINGW32_VERSION}.tar.bz2};
+: ${PKG_BINUTILS_X86_64_W64_MINGW32_CONFIGURE_ARGS:="--disable-nls --host=${TARGET} --prefix=/ --target=x86_64-w64-mingw32 --with-libelf=${PREFIX_NATIVE} --with-gmp=${PREFIX_NATIVE} --with-mpc=${PREFIX_NATIVE} --with-mpfr=${PREFIX_NATIVE} --with-sysroot=/"};
+: ${PKG_BINUTILS_X86_64_W64_MINGW32_SLIBTOOL:=slibtool-static};
+: ${PKG_MUSL_NATIVE_SHA256SUM:=720b83c7e276b4b679c0bffe9509340d5f81fd601508e607e708177df0d31c0e};
+: ${PKG_MUSL_NATIVE_VERSION:=1.1.12};
+: ${PKG_MUSL_NATIVE_URL:=http://www.musl-libc.org/releases/musl-${PKG_MUSL_NATIVE_VERSION}.tar.gz};
+: ${PKG_GCC_NATIVE_VERSION:=4.6.4};
 : ${PKG_MDSO_URL:=${GITROOT}/mdso};
 : ${PKG_MDSO_URL_TYPE:=git};
 : ${PKG_MDSO_CONFIGURE_ARGS:="--prefix=/usr --target=${TARGET}"};
diff --git a/vars/gcc.vars b/vars/gcc.vars
new file mode 100644
index 00000000..b62ccebd
--- /dev/null
+++ b/vars/gcc.vars
@@ -0,0 +1,413 @@
+#
+# . ./build.vars and set -o errexit -o noglob are assumed.
+# Order: stage1, runtime, libstdcpp_v3, full, native
+# Order: stage1_x86_64_w64_mingw32, native_x86_64_w64_mingw32
+#
+
+pkg_gcc_stage1_all() {
+	PKG_GCC_VERSION="${PKG_GCC_STAGE1_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	# GCC, stage1.
+	if ! is_build_script_done fetch; then
+		fetch_git cbb-gcc-${PKG_GCC_VERSION}		\
+			${GITROOT}/cbb/cbb-gcc-${PKG_GCC_VERSION};
+		set_build_script_done fetch -configure;
+	fi;
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION} cross;
+	export	cbb_ldflags_for_target=--sysroot=${PKG_PREFIX}	\
+		cbb_sysroot_for_libgcc=${PKG_PREFIX}		\
+		cbb_target=${PKG_TARGET}			\
+		cbb_neutral_libiberty=no			\
+		cbb_xgcc_for_specs=${WORKDIR}/${PKG_BUILD_DIR}/gcc/xgcc;
+	GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PKG_PREFIX}";
+	GCCFLAGS="${CFLAGS:+${CFLAGS} }--include $(readlink -f ${WORKDIR}/cbb-gcc-${PKG_GCC_VERSION}/libc/cbb-musl-pe.h)";
+	for __ in CFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS CXXFLAGS_FOR_BUILD; do
+		export "${__}=${GCCFLAGS}";
+	done;
+	for __ in CFLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET; do
+		export "${__}=${GCCTARGET_FLAGS}";
+	done;
+	for __ in cbb_cflags_for_stage1 cbb_cflags_for_stage2 cbb_cflags_for_stage3 cbb_cflags_for_stage4; do
+		export "${__}=${CFLAGS_FOR_BUILD}" ;
+	done;
+	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;
+	if ! is_build_script_done configure; then
+		insecure_mkdir ${PKG_PREFIX}/include;
+		[ \! -d ${PKG_PREFIX}/usr ] &&			\
+			ln -s -- . ${PKG_PREFIX}/usr;
+		_configure_args="				\
+			--disable-sjlj-exceptions		\
+			--prefix=${PREFIX}			\
+			--with-sysroot=${PREFIX}/${PKG_TARGET}";
+		secure_rm ${PKG_BUILD_DIR};
+		insecure_mkdir ${PKG_BUILD_DIR};
+		secure_cd ${PKG_BUILD_DIR};
+		../cbb-gcc-${PKG_GCC_VERSION}/configure		\
+			--disable-bootstrap			\
+			--disable-libmudflap			\
+			--disable-multilib			\
+			--disable-nls				\
+			--disable-obsolete			\
+			--disable-symvers			\
+			--enable-canonical-system-headers	\
+			--enable-__cxa_atexit			\
+			--enable-debug				\
+			--enable-gnu-indirect-function		\
+			--enable-gnu-unique-object		\
+			--enable-initfini-array			\
+			--enable-languages=c,c++,objc,lto	\
+			--enable-libstdcxx-debug		\
+			--enable-lto				\
+			--enable-multiarch			\
+			--enable-secureplt			\
+			--enable-shared				\
+			--enable-threads=posix			\
+			--target=${PKG_TARGET}			\
+			--with-fpmath=sse			\
+			${_configure_args};
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS} all-gcc;
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} install-gcc;
+		__="$(uname -s)";
+		if [ "${__#*CYGWIN*}" != "${__}" ]; then
+			ln -s -- ${PREFIX}/libexec/gcc/${PKG_TARGET}/${PKG_GCC_VERSION}/liblto_plugin.dll.a	\
+				ln -s -- ${PREFIX}/libexec/gcc/${PKG_TARGET}/${PKG_GCC_VERSION}/liblto_plugin.so;
+		fi;
+		set_build_script_done install finish;
+	fi;
+};
+
+pkg_gcc_runtime_all() {
+	PKG_GCC_VERSION="${PKG_GCC_RUNTIME_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION} cross;
+	cd ${PKG_BUILD_DIR};
+	# GCC, compiler runtime.
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS} all-target-libgcc;
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} install-target-libgcc;
+		set_build_script_done install finish;
+	fi;
+};
+
+pkg_gcc_libstdcpp_v3_all() {
+	PKG_GCC_VERSION="${PKG_GCC_LIBSTDCPP_V3_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION} cross;
+	cd ${PKG_BUILD_DIR};
+	# GCC, libstdc++-v3.
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS} all-target-libstdc++-v3;
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} install-target-libstdc++-v3;
+		set_build_script_done install finish;
+	fi;
+};
+
+pkg_gcc_full_all() {
+	PKG_GCC_VERSION="${PKG_GCC_FULL_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION} cross;
+	cd ${PKG_BUILD_DIR};
+	# GCC, everything else.
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS};
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} install;
+		set_build_script_done install finish;
+	fi;
+};
+
+pkg_gcc_native_all() {
+	PKG_GCC_VERSION="${PKG_GCC_NATIVE_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	# GCC, native.
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION} native;
+	export 	cbb_ldflags_for_target=--sysroot=${PKG_PREFIX}	\
+		cbb_sysroot_for_libgcc=${PKG_PREFIX}		\
+		cbb_target=${PKG_TARGET}			\
+		cbb_xgcc_for_specs=${PKG_TARGET}-gcc		\
+		sysroot_headers_suffix=${PKG_PREFIX};
+	GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PKG_PREFIX}";
+	GCCFLAGS="${CFLAGS:+${CFLAGS} }--include $(readlink -f ${WORKDIR}/cbb-gcc-${PKG_GCC_VERSION}/libc/cbb-musl-pe.h)";
+	for __ in CFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS CXXFLAGS_FOR_BUILD; do
+		export "${__}=${GCCFLAGS}";
+	done;
+	for __ in CFLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET; do
+		export "${__}=${GCCTARGET_FLAGS}";
+	done;
+	for __ in cbb_cflags_for_stage1 cbb_cflags_for_stage2 cbb_cflags_for_stage3 cbb_cflags_for_stage4; do
+		export "${__}=${CFLAGS_FOR_BUILD}" ;
+	done;
+	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;
+	if ! is_build_script_done configure; then
+		insecure_mkdir ${PKG_PREFIX}/${PKG_TARGET};
+		if [ \! -d ${PKG_PREFIX}/${PKG_TARGET}/usr ]; then
+			ln -s -- . ${PKG_PREFIX}/${PKG_TARGET}/usr;
+		fi;
+		if [ "${ARCH}" = nt32 ]; then
+			_configure_args="--host=i686-nt32-midipix";
+		else
+			_configure_args="--host=x86_64-nt64-midipix";
+		fi;
+		_configure_args="${_configure_args}	\
+			--disable-sjlj-exceptions	\
+			--prefix=/			\
+			--with-elf=${PKG_PREFIX}	\
+			--with-gmp=${PKG_PREFIX}	\
+			--with-mpc=${PKG_PREFIX}	\
+			--with-mpfr=${PKG_PREFIX}	\
+			--with-sysroot=";
+		secure_rm ${PKG_BUILD_DIR};
+		insecure_mkdir ${PKG_BUILD_DIR};
+		secure_cd ${PKG_BUILD_DIR};
+		../cbb-gcc-${PKG_GCC_VERSION}/configure		\
+			--disable-bootstrap			\
+			--disable-libmudflap			\
+			--disable-multilib			\
+			--disable-nls				\
+			--disable-obsolete			\
+			--disable-symvers			\
+			--enable-canonical-system-headers	\
+			--enable-__cxa_atexit			\
+			--enable-debug				\
+			--enable-gnu-indirect-function		\
+			--enable-gnu-unique-object		\
+			--enable-initfini-array			\
+			--enable-languages=c,c++,objc,lto	\
+			--enable-libstdcxx-debug		\
+			--enable-lto				\
+			--enable-multiarch			\
+			--enable-secureplt			\
+			--enable-shared				\
+			--enable-threads=posix			\
+			--target=${PKG_TARGET}			\
+			--with-fpmath=sse			\
+			${_configure_args};
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS} all-gcc;
+		make ${MAKEFLAGS} all-target-libgcc;
+		make ${MAKEFLAGS} all-target-libstdc++-v3;
+		make ${MAKEFLAGS} all;
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} DESTDIR=${PKG_PREFIX} install;
+		set_build_script_done install finish;
+	fi;
+};
+
+pkg_gcc_stage1_x86_64_w64_mingw32_all() {
+	if [ ! -L ${PREFIX}/${PKG_TARGET}/mingw ]; then
+		secure_rm ${PREFIX}/${PKG_TARGET}/mingw;
+		ln -sf . ${PREFIX}/${PKG_TARGET}/mingw;
+	fi;
+	if [ ! -d ${PREFIX}/${PKG_TARGET}/mingw/include ]; then
+		secure_rm ${PREFIX}/${PKG_TARGET}/mingw/include;
+		insecure_mkdir ${PREFIX}/${PKG_TARGET}/mingw/include;
+	fi;
+	PKG_GCC_VERSION="${PKG_GCC_STAGE1_X86_64_W64_MINGW32_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	# GCC, stage1.
+	if ! is_build_script_done fetch; then
+		fetch_git cbb-gcc-${PKG_GCC_VERSION}		\
+			${GITROOT}/cbb/cbb-gcc-${PKG_GCC_VERSION};
+		set_build_script_done fetch -configure;
+	fi;
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION}_x86_64_w64_mingw32 cross;
+	export	cbb_ldflags_for_target=--sysroot=${PKG_PREFIX}	\
+		cbb_sysroot_for_libgcc=${PKG_PREFIX}		\
+		cbb_target=${PKG_TARGET}			\
+		cbb_neutral_libiberty=no			\
+		cbb_xgcc_for_specs=${WORKDIR}/${PKG_BUILD_DIR}/gcc/xgcc;
+	GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PKG_PREFIX}";
+	GCCFLAGS="${CFLAGS:+${CFLAGS} }--include $(readlink -f ${WORKDIR}/cbb-gcc-${PKG_GCC_VERSION}/libc/cbb-musl-pe.h)";
+	for __ in CFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS CXXFLAGS_FOR_BUILD; do
+		export "${__}=${GCCFLAGS}";
+	done;
+	for __ in CFLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET; do
+		export "${__}=${GCCTARGET_FLAGS}";
+	done;
+	for __ in cbb_cflags_for_stage1 cbb_cflags_for_stage2 cbb_cflags_for_stage3 cbb_cflags_for_stage4; do
+		export "${__}=${CFLAGS_FOR_BUILD}" ;
+	done;
+	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;
+	if ! is_build_script_done configure; then
+		insecure_mkdir ${PKG_PREFIX}/include;
+		[ \! -d ${PKG_PREFIX}/usr ] &&			\
+			ln -s -- . ${PKG_PREFIX}/usr;
+		_configure_args="				\
+			--enable-sjlj-exceptions		\
+			--prefix=${PREFIX}			\
+			--with-sysroot=${PREFIX}/${PKG_TARGET}	\
+			--without-headers";
+		secure_rm ${PKG_BUILD_DIR};
+		insecure_mkdir ${PKG_BUILD_DIR};
+		secure_cd ${PKG_BUILD_DIR};
+		../cbb-gcc-${PKG_GCC_VERSION}/configure		\
+			--disable-bootstrap			\
+			--disable-libmudflap			\
+			--disable-multilib			\
+			--disable-nls				\
+			--disable-obsolete			\
+			--disable-symvers			\
+			--enable-canonical-system-headers	\
+			--enable-__cxa_atexit			\
+			--enable-debug				\
+			--enable-gnu-indirect-function		\
+			--enable-gnu-unique-object		\
+			--enable-initfini-array			\
+			--enable-languages=c,c++,objc,lto	\
+			--enable-libstdcxx-debug		\
+			--enable-lto				\
+			--enable-multiarch			\
+			--enable-secureplt			\
+			--enable-shared				\
+			--enable-threads=posix			\
+			--target=${PKG_TARGET}			\
+			--with-fpmath=sse			\
+			${_configure_args};
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS} all-gcc;
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} install-gcc;
+		__="$(uname -s)";
+		if [ "${__#*CYGWIN*}" != "${__}" ]; then
+			ln -s -- ${PREFIX}/libexec/gcc/${PKG_TARGET}/${PKG_GCC_VERSION}/liblto_plugin.dll.a	\
+				ln -s -- ${PREFIX}/libexec/gcc/${PKG_TARGET}/${PKG_GCC_VERSION}/liblto_plugin.so;
+		fi;
+		set_build_script_done install finish;
+	fi;
+};
+
+pkg_gcc_native_x86_64_w64_mingw32_all() {
+	if [ ! -L ${PREFIX}/${PKG_TARGET}/mingw ]; then
+		secure_rm ${PREFIX}/${PKG_TARGET}/mingw;
+		ln -sf . ${PREFIX}/${PKG_TARGET}/mingw;
+	fi;
+	if [ ! -d ${PREFIX}/${PKG_TARGET}/mingw/include ]; then
+		secure_rm ${PREFIX}/${PKG_TARGET}/mingw/include;
+		insecure_mkdir ${PREFIX}/${PKG_TARGET}/mingw/include;
+	fi;
+	PKG_GCC_VERSION="${PKG_GCC_NATIVE_X86_W64_MINGW32_VERSION}";
+	export MAKE="make LIBTOOL=slibtool";
+	# GCC, native.
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION}_x86_64_w64_mingw32 native;
+	export 	cbb_ldflags_for_target=--sysroot=${PKG_PREFIX}	\
+		cbb_sysroot_for_libgcc=${PKG_PREFIX}		\
+		cbb_target=${PKG_TARGET}			\
+		cbb_xgcc_for_specs=${PKG_TARGET}-gcc		\
+		sysroot_headers_suffix=${PKG_PREFIX};
+	GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PKG_PREFIX}";
+	GCCFLAGS="${CFLAGS:+${CFLAGS} }--include $(readlink -f ${WORKDIR}/cbb-gcc-${PKG_GCC_VERSION}/libc/cbb-musl-pe.h)";
+	for __ in CFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS CXXFLAGS_FOR_BUILD; do
+		export "${__}=${GCCFLAGS}";
+	done;
+	for __ in CFLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET; do
+		export "${__}=${GCCTARGET_FLAGS}";
+	done;
+	for __ in cbb_cflags_for_stage1 cbb_cflags_for_stage2 cbb_cflags_for_stage3 cbb_cflags_for_stage4; do
+		export "${__}=${CFLAGS_FOR_BUILD}" ;
+	done;
+	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;
+	if ! is_build_script_done configure; then
+		insecure_mkdir ${PKG_PREFIX}/${PKG_TARGET};
+		if [ \! -d ${PKG_PREFIX}/${PKG_TARGET}/usr ]; then
+			ln -s -- . ${PKG_PREFIX}/${PKG_TARGET}/usr;
+		fi;
+		_configure_args="${_configure_args}	\
+			--build=x86_64-unknown-linux-gnu\
+			--host=x86_64-nt64-midipix	\
+			--without-headers		\
+			--enable-sjlj-exceptions	\
+			--prefix=/			\
+			--with-elf=${PKG_PREFIX}	\
+			--with-gmp=${PKG_PREFIX}	\
+			--with-mpc=${PKG_PREFIX}	\
+			--with-mpfr=${PKG_PREFIX}	\
+			--with-sysroot=";
+		patch -b -d ${PKG_SUBDIR} -p1 < ${MIDIPIX_BUILD_PWD}/patches/${PKG_NAME}.local.patch;
+		secure_rm ${PKG_BUILD_DIR};
+		insecure_mkdir ${PKG_BUILD_DIR};
+		secure_cd ${PKG_BUILD_DIR};
+		../cbb-gcc-${PKG_GCC_VERSION}/configure		\
+			--disable-bootstrap			\
+			--disable-libmudflap			\
+			--disable-multilib			\
+			--disable-nls				\
+			--disable-obsolete			\
+			--disable-symvers			\
+			--enable-canonical-system-headers	\
+			--enable-__cxa_atexit			\
+			--enable-debug				\
+			--enable-gnu-indirect-function		\
+			--enable-gnu-unique-object		\
+			--enable-initfini-array			\
+			--enable-languages=c,c++,objc,lto	\
+			--enable-libstdcxx-debug		\
+			--enable-lto				\
+			--enable-multiarch			\
+			--enable-secureplt			\
+			--enable-shared				\
+			--enable-threads=posix			\
+			--target=${PKG_TARGET}			\
+			--with-fpmath=sse			\
+			${_configure_args};
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		make ${MAKEFLAGS} all-gcc;
+		make ${MAKEFLAGS} all-target-libgcc;
+		make ${MAKEFLAGS} all-target-libstdc++-v3;
+		make ${MAKEFLAGS} all;
+		set_build_script_done build -install;
+	fi;
+	if ! is_build_script_done install; then
+		make ${MAKEFLAGS} DESTDIR=${PKG_PREFIX} install;
+		set_build_script_done install finish;
+	fi;
+};
+
+# vim:filetype=sh
diff --git a/vars/gcc_full.vars b/vars/gcc_full.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_full.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/gcc_libstdcpp_v3.vars b/vars/gcc_libstdcpp_v3.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_libstdcpp_v3.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/gcc_native.vars b/vars/gcc_native.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_native.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/gcc_native_x86_64_w64_mingw32.vars b/vars/gcc_native_x86_64_w64_mingw32.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_native_x86_64_w64_mingw32.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/gcc_runtime.vars b/vars/gcc_runtime.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_runtime.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/gcc_stage1.vars b/vars/gcc_stage1.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_stage1.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/gcc_stage1_x86_64_w64_mingw32.vars b/vars/gcc_stage1_x86_64_w64_mingw32.vars
new file mode 120000
index 00000000..55c0ef10
--- /dev/null
+++ b/vars/gcc_stage1_x86_64_w64_mingw32.vars
@@ -0,0 +1 @@
+gcc.vars
\ No newline at end of file
diff --git a/vars/musl.vars b/vars/musl.vars
new file mode 100644
index 00000000..bec1e06c
--- /dev/null
+++ b/vars/musl.vars
@@ -0,0 +1,111 @@
+#
+# . ./build.vars and set -o errexit -o noglob are assumed.
+# Order: no_complex, native, full
+#
+
+pkgp_musl_configure() {
+	secure_rm ${PKG_BUILD_DIR};
+	insecure_mkdir ${PKG_BUILD_DIR};
+	secure_cd ${PKG_BUILD_DIR};
+	env	lz_cflags_cmdline=""		\
+		lz_debug="yes"			\
+	../lazy/lazy				\
+		-a ${ARCH}			\
+		-c gcc				\
+		-f ${PKG_PREFIX}		\
+		-n musl				\
+		-p ../musl-${PKG_MUSL_VERSION}	\
+		-t ${lz_target}			\
+		-x config;
+};
+
+pkg_musl_no_complex_all() {
+	PKG_MUSL_VERSION="${PKG_MUSL_NO_COMPLEX_VERSION}";
+	# Git clone what we need.
+	fetch_git lazy ${GITROOT}/lazy;
+	export lz_arch=${ARCH} lz_cflags_debug=-O2 lz_target=${TARGET};
+	# Musl: build (no-complex)
+	_install=install_no_complex;
+	set_build_dir musl-${PKG_MUSL_VERSION}-${2} cross;
+	if ! is_build_script_done fetch; then
+		fetch http://www.musl-libc.org/releases/musl-${PKG_MUSL_VERSION}.tar.gz	\
+			${PKG_MUSL_NO_COMPLEX_SHA256SUM};
+		secure_rm mmglue;
+		fetch_git mmglue ${GITROOT}/mmglue;
+		set_build_script_done fetch -extract;
+	fi;
+	if ! is_build_script_done extract; then
+		secure_rm musl-${PKG_MUSL_VERSION};
+		tar -xf ${DLCACHEDIR}/musl-${PKG_MUSL_VERSION}.tar.gz;
+		set +o noglob; cp -R -- mmglue/* musl-${PKG_MUSL_VERSION}/; set -o noglob;
+		set_build_script_done extract -configure;
+	fi;
+	if ! is_build_script_done configure; then
+		pkgp_musl_configure;
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		./lazy	-e ${_install}			\
+			-x build;
+		set_build_script_done build finish;
+	fi;
+};
+
+pkg_musl_native_all() {
+	PKG_MUSL_VERSION="${PKG_MUSL_NATIVE_VERSION}";
+	# Git clone what we need.
+	fetch_git lazy ${GITROOT}/lazy;
+	export lz_arch=${ARCH} lz_cflags_debug=-O2 lz_target=${TARGET};
+	# Musl: build (full)
+	_install=install;
+	set_build_dir musl-${PKG_MUSL_VERSION} native;
+	if ! is_build_script_done configure; then
+		pkgp_musl_configure;
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		./lazy	-e ${_install}			\
+			-x build;
+		ln -sf -- ../lib/libc.so ${PKG_PREFIX}/bin/ldd;
+		set_build_script_done build finish;
+	fi;
+};
+
+pkg_musl_full_all() {
+	PKG_MUSL_VERSION="${PKG_MUSL_FULL_VERSION}";
+	# Git clone what we need.
+	fetch_git lazy ${GITROOT}/lazy;
+	export lz_arch=${ARCH} lz_cflags_debug=-O2 lz_target=${TARGET};
+	# Musl: build (full)
+	_install=install;
+	set_build_dir musl-${PKG_MUSL_VERSION} cross;
+	if ! is_build_script_done configure; then
+		pkgp_musl_configure;
+		set_build_script_done configure clean -build;
+	else
+		cd ${PKG_BUILD_DIR};
+	fi;
+	if ! is_build_script_done clean; then
+		make ${MAKEFLAGS} clean;
+		set_build_script_done clean -build;
+	fi;
+	if ! is_build_script_done build; then
+		./lazy	-e ${_install}			\
+			-x build;
+		set_build_script_done build finish;
+	fi;
+};
+
+# vim:filetype=sh
diff --git a/vars/musl_full.vars b/vars/musl_full.vars
new file mode 120000
index 00000000..aed756b9
--- /dev/null
+++ b/vars/musl_full.vars
@@ -0,0 +1 @@
+musl.vars
\ No newline at end of file
diff --git a/vars/musl_native.vars b/vars/musl_native.vars
new file mode 120000
index 00000000..aed756b9
--- /dev/null
+++ b/vars/musl_native.vars
@@ -0,0 +1 @@
+musl.vars
\ No newline at end of file
diff --git a/vars/musl_no_complex.vars b/vars/musl_no_complex.vars
new file mode 120000
index 00000000..aed756b9
--- /dev/null
+++ b/vars/musl_no_complex.vars
@@ -0,0 +1 @@
+musl.vars
\ No newline at end of file
diff --git a/vars/psxstub.vars b/vars/psxstub.vars
index cf18c4b1..2dad9c4e 100644
--- a/vars/psxstub.vars
+++ b/vars/psxstub.vars
@@ -2,7 +2,8 @@
 # . ./build.vars and set -o errexit -o noglob are assumed.
 #
 
-pkg_psxstub_finish() {
+pkg_psxstub_all() {
+	pkg_fetch;
 	if ! is_build_script_done install; then
 		if [ "${TARGET}" = i686-nt32-midipix ]	\
 		|| [ "${TARGET}" = x86_64-nt64-midipix ]; then