dev-util/mingw64-toolchain: add 10.0.0_p2 unkeyworded

For testing binutils-2.40, but really only unkeyworded because hoping
to bump something else at same time (runtime or gcc) before exposing
to most users due to the long build time.

Also:
* switch to --with-gcc-major-version-only, unimportent here but
  doesn't hurt to be consistent with system's
* explicitly filter-lto regardless of custom-cflags as it's
  guaranteed to not work (would need a USE=lto, and perhaps
  still skip for mingw static libs as this is fragile)

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

2 files changed, 316 insertions, 0 deletions

diff --git a/dev-util/mingw64-toolchain/Manifest b/dev-util/mingw64-toolchain/Manifest
index ec14b3eba767..e2d41c1f9190 100644
--- a/dev-util/mingw64-toolchain/Manifest
+++ b/dev-util/mingw64-toolchain/Manifest
@@ -1,3 +1,4 @@
 DIST binutils-2.39.tar.xz 25167756 BLAKE2B ac6a5296c6586d53eaadcbffc5c399a6d79edf72450b9bb8b3525ce525129cef3d2eb90c85ef3bb3270b5a03b0e1ffb8f0b705f028158726f9777ebb8685066f SHA512 68e038f339a8c21faa19a57bbc447a51c817f47c2e06d740847c6e9cc3396c025d35d5369fa8c3f8b70414757c89f0e577939ddc0d70f283182504920f53b0a3
+DIST binutils-2.40.tar.xz 25241484 BLAKE2B 8d799f7c595f878b9af5b17a490021dd8b8300ac2fe0ed8574c012929d22d2d0493e003a3e631a9436e8e712da801779b777c566167fe42b0bde119ffa5ad1c2 SHA512 a37e042523bc46494d99d5637c3f3d8f9956d9477b748b3b1f6d7dfbb8d968ed52c932e88a4e946c6f77b8f48f1e1b360ca54c3d298f17193f3b4963472f6925
 DIST gcc-12.2.0.tar.xz 84645292 BLAKE2B 715574af9ad678f9dc8cfd19c866bf910c7edfd479e7e9681337feaa9b54e5d304ddb85483816b8d89754d502405823ae2eff0d1e444538763f40be8e428d8da SHA512 e9e857bd81bf7a370307d6848c81b2f5403db8c7b5207f54bce3f3faac3bde63445684092c2bc1a2427cddb6f7746496d9fbbef05fbbd77f2810b2998f1f9173
 DIST mingw-w64-v10.0.0.tar.bz2 9620291 BLAKE2B 451372403289c492ca939d65bb4d9f6e9fa6bdd6b32d79d6438d858e106e8cc291712ada1f3f7b951a4c6908e7d0385d485ca76920af39bcf86effa48408e330 SHA512 3c0827af7c40809a867758f6cd9ef3ff0c988b43082345bf725e03949af95968d634ace99a7ffae323189549221dcb5d861de9e801f1fbc7904e446641b60516
diff --git a/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p2.ebuild b/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p2.ebuild
new file mode 100644
index 000000000000..4fcbb96b0cb6
--- /dev/null
+++ b/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p2.ebuild
@@ -0,0 +1,315 @@
+# Copyright 2022-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+MULTILIB_COMPAT=( abi_x86_{32,64} )
+inherit edo flag-o-matic multilib-build toolchain-funcs
+
+# Pick versions known to work for Wine and use vanilla for simplicity,
+# ideally update only on mingw64-runtime bumps or if toolchain is getting
+# too outdated to avoid rebuilding the entire toolchain too often.
+# Do _p1++ rather than revbump if changing without bumping mingw64 itself.
+BINUTILS_PV=2.40
+GCC_PV=12.2.0
+MINGW_PV=$(ver_cut 1-3)
+
+DESCRIPTION="All-in-one mingw64 toolchain intended for building Wine without crossdev"
+HOMEPAGE="
+	https://www.mingw-w64.org/
+	https://gcc.gnu.org/
+	https://sourceware.org/binutils/"
+SRC_URI="
+	mirror://sourceforge/mingw-w64/mingw-w64/mingw-w64-release/mingw-w64-v${MINGW_PV}.tar.bz2
+	mirror://gnu/gcc/gcc-${GCC_PV}/gcc-${GCC_PV}.tar.xz
+	mirror://gnu/binutils/binutils-${BINUTILS_PV}.tar.xz
+	https://sourceware.org/pub/binutils/releases/binutils-${BINUTILS_PV}.tar.xz"
+S="${WORKDIR}"
+
+# l1:binutils+gcc, l2:gcc(libraries), l3:mingw64-runtime
+LICENSE="
+	GPL-3+
+	LGPL-3+ || ( GPL-3+ libgcc libstdc++ gcc-runtime-library-exception-3.1 )
+	ZPL BSD BSD-2 ISC LGPL-2+ LGPL-2.1+ MIT public-domain"
+SLOT="0"
+# unkeyworded for testing new binutils, keywording may wait until can bump
+# either gcc or mingw64-runtime at same time given the long build time
+#KEYWORDS="-* ~amd64 ~x86"
+IUSE="+abi_x86_32 custom-cflags debug"
+
+RDEPEND="
+	dev-libs/gmp:=
+	dev-libs/mpc:=
+	dev-libs/mpfr:=
+	sys-libs/zlib:=
+	virtual/libiconv"
+DEPEND="${RDEPEND}"
+
+PATCHES=(
+	"${FILESDIR}"/mingw64-runtime-10.0.0-msvcr-extra-race.patch
+	"${FILESDIR}"/mingw64-runtime-10.0.0-tmp-files-clash.patch
+	"${FILESDIR}"/gcc-11.3.0-plugin-objdump.patch
+	"${FILESDIR}"/gcc-12.2.0-drop-cflags-sed.patch
+)
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} == binary ]] && return
+
+	tc-is-cross-compiler &&
+		die "cross-compilation of the toolchain itself is unsupported"
+}
+
+src_prepare() {
+	# rename directories to simplify both patching and the ebuild
+	mv binutils{-${BINUTILS_PV},} || die
+	mv gcc{-${GCC_PV},} || die
+	mv mingw-w64-v${MINGW_PV} mingw64 || die
+
+	default
+}
+
+src_compile() {
+	# not great but do everything in src_compile given bootstrapping
+	# process needs to be done in steps of configure+compile+install
+	# (done modular to have most package-specific things in one place)
+
+	CTARGET=$(usex x86 i686 x86_64)-w64-mingw32
+
+	MWT_D=${T}/root # moved to ${D} in src_install
+	local mwtdir=/usr/lib/${PN}
+	local prefix=${EPREFIX}${mwtdir}
+	local sysroot=${MWT_D}${prefix}
+	local -x PATH=${sysroot}/bin:${PATH}
+
+	filter-lto # requires setting up, and may be messy with mingw static libs
+	use custom-cflags || strip-flags # fancy flags are not realistic here
+
+	local multilib=false
+	use abi_x86_32 && use abi_x86_64 && multilib=true
+
+	# global configure flags
+	local conf=(
+		--build=${CBUILD:-${CHOST}}
+		--target=${CTARGET}
+		--{doc,info,man}dir=/.skip # let individual packages handle docs
+	)
+
+	# binutils
+	local conf_binutils=(
+		--prefix="${prefix}"
+		--host=${CHOST}
+		--disable-cet
+		--disable-default-execstack
+		--disable-nls
+		--disable-shared
+		--with-system-zlib
+		--without-debuginfod
+		--without-msgpack
+		--without-zstd
+	)
+	mwt-binutils() {
+		# symlink gcc's lto plugin for AR (bug #854516)
+		ln -s ../../libexec/gcc/${CTARGET}/${GCC_PV%%.*}/liblto_plugin.so \
+			"${sysroot}"/lib/bfd-plugins || die
+	}
+
+	# gcc (minimal -- if need more, disable only in stage1 / enable in stage3)
+	local conf_gcc=(
+		--prefix="${prefix}"
+		--host=${CHOST}
+		--disable-bootstrap
+		--disable-cet
+		--disable-gcov #843989
+		--disable-gomp
+		--disable-libquadmath
+		--disable-libsanitizer
+		--disable-libssp
+		--disable-libvtv
+		--disable-shared
+		--disable-werror
+		--with-gcc-major-version-only
+		--with-system-zlib
+		--without-isl
+		--without-zstd
+	)
+	${multilib} || conf_gcc+=( --disable-multilib )
+
+	local conf_gcc_stage1=(
+		--enable-languages=c
+		--disable-libatomic
+		--with-sysroot="${sysroot}"
+	)
+	local -n conf_gcc_stage2=conf_gcc_stage1
+
+	local conf_gcc_stage3=(
+		--enable-languages=c,c++
+		--enable-threads=posix # needs stage3, and is required for dxvk/vkd3d
+		--with-sysroot="${prefix}"
+		--with-build-sysroot="${sysroot}"
+	)
+
+	# mingw64-runtime (split in several parts, 3 needed for gcc stages)
+	local conf_mingw64=(
+		--prefix="${prefix}"/${CTARGET}
+		--host=${CTARGET}
+		--with-sysroot=no
+		--without-{crt,headers}
+
+		# mingw .dll aren't used by wine and packages wouldn't find them
+		# at runtime, use crossdev if need dll and proper search paths
+		--disable-shared
+	)
+
+	local conf_mingw64_headers=(
+		--enable-idl
+		--with-headers
+	)
+	mwt-mingw64_headers() { ln -s ${CTARGET} "${sysroot}"/mingw || die; } #419601
+
+	local conf_mingw64_runtime=( --with-crt )
+	${multilib} ||
+		conf_mingw64_runtime+=( $(usex x86 --disable-lib64 --disable-lib32 ) )
+
+	local conf_mingw64_libraries=( --with-libraries )
+	local conf_mingw64_libraries32=(
+		--libdir="${prefix}"/${CTARGET}/lib32
+		--with-libraries
+		CC="${CTARGET}-gcc -m32"
+		RCFLAGS="--target=pe-i386 ${RCFLAGS}"
+	)
+
+	# mingw64-runtime's idl compiler (useful not to depend on wine for widl)
+	local conf_widl=( --prefix="${prefix}" )
+
+	# mwt-build [-x] <path/package-name> [stage-name]
+	# -> ./configure && make && make install && mwt-package() && mwt-package_stage()
+	# passes conf, conf_package, and conf_package_stage arrays to configure, and
+	# users can add options through environment with e.g.
+	#	MWT_BINUTILS_CONF="--some-option"
+	#	MWT_GCC_STAGE1_CONF="--some-gcc-stage1-only-option"
+	#	MWT_WIDL_CONF="--some-other-option"
+	#	EXTRA_ECONF="--global-option" (generic naming for if not reading this)
+	mwt-build() {
+		if [[ ${1} == -x ]]; then
+			(
+				# cross-compiling, cleanup and let ./configure handle it
+				unset AR AS CC CPP CXX LD NM OBJCOPY OBJDUMP RANLIB RC STRIP
+				CHOST=${CTARGET}
+				filter-flags '-fstack-clash-protection' #758914
+				filter-flags '-fstack-protector*' #870136
+				filter-flags '-fuse-ld=*'
+				filter-flags '-mfunction-return=thunk*' #878849
+				strip-unsupported-flags
+				mwt-build "${@:2}"
+			)
+			return
+		fi
+
+		local id=${1##*/}
+		local build_dir=${WORKDIR}/${1}${2+_${2}}-build
+
+		# econf is not allowed in src_compile and its defaults are
+		# mostly unused here, so use configure directly
+		local conf=( "${WORKDIR}/${1}"/configure "${conf[@]}" )
+
+		local -n conf_id=conf_${id} conf_id2=conf_${id}_${2}
+		[[ ${conf_id@a} == *a* ]] && conf+=( "${conf_id[@]}" )
+		[[ ${2} && ${conf_id2@a} == *a* ]] && conf+=( "${conf_id2[@]}" )
+
+		local -n extra_id=MWT_${id^^}_CONF extra_id2=MWT_${id^^}_${2^^}_CONF
+		conf+=( ${EXTRA_ECONF} ${extra_id} ${2+${extra_id2}} )
+
+		einfo "Building ${id}${2+ ${2}} in ${build_dir} ..."
+
+		mkdir -p "${build_dir}" || die
+		pushd "${build_dir}" >/dev/null || die
+
+		edo "${conf[@]}"
+		emake
+		emake DESTDIR="${MWT_D}" install
+
+		declare -f mwt-${id} >/dev/null && edo mwt-${id}
+		declare -f mwt-${id}_${2} >/dev/null && edo mwt-${id}_${2}
+
+		popd >/dev/null || die
+	}
+
+	# workaround race condition with out-of-source crt build (bug #879537)
+	mkdir -p mingw64_runtime-build/mingw-w64-crt/lib{32,64} || die
+
+	# build with same ordering that crossdev would do + stage3 for pthreads
+	mwt-build binutils
+	mwt-build mingw64 headers
+	mwt-build gcc stage1
+	mwt-build -x mingw64 runtime
+	mwt-build gcc stage2
+	${multilib} && mwt-build -x mingw64 libraries32
+	mwt-build -x mingw64 libraries
+	mwt-build gcc stage3
+	mwt-build mingw64/mingw-w64-tools/widl
+	# note: /could/ system-bootstrap if already installed, but gcc and
+	# libraries will use the system's older mingw64 headers/static-libs
+	# and make this potentially fragile without more workarounds/stages
+
+	if ${multilib}; then
+		# Like system's gcc, `x86_64-w64-mingw32-gcc -m32` can build for x86,
+		# but packages expect crossdev's i686-w64-mingw32-gcc which is the same
+		# just without 64bit support and would rather not build the toolchain
+		# twice. Dirty but wrap to allow simple interoperability with crossdev.
+		mwt-i686_wrapper() {
+			printf "#!/usr/bin/env sh\nexec \"${prefix}/bin/${bin}\" ${*} "'"${@}"\n' \
+				> ${bin32} || die
+			chmod +x ${bin32} || die
+		}
+		pushd "${sysroot}"/bin >/dev/null || die
+		local bin bin32
+		for bin in ${CTARGET}-*; do
+			bin32=${bin/x86_64-w64/i686-w64}
+			case ${bin#${CTARGET}-} in
+				as) mwt-i686_wrapper --32;;
+				cpp|gcc|gcc-${GCC_PV%%.*}|g++|widl) mwt-i686_wrapper -m32;;
+				ld|ld.bfd) mwt-i686_wrapper -m i386pe;;
+				windres) mwt-i686_wrapper --target=pe-i386;;
+				*) ln -s ${bin} ${bin32} || die;;
+			esac
+		done
+		popd >/dev/null || die
+	fi
+
+	# portage doesn't know the right strip executable to use for CTARGET
+	# and it can lead to .a mangling, notably with 32bit (breaks toolchain)
+	dostrip -x ${mwtdir}/{${CTARGET}/lib{,32},lib/gcc/${CTARGET}}
+
+	# ... and instead do it here given this saves ~60MB
+	if use !debug; then
+		einfo "Stripping ${CTARGET} static libraries ..."
+		find "${sysroot}"/{,lib/gcc/}${CTARGET} -type f -name '*.a' \
+			-exec ${CTARGET}-strip --strip-unneeded {} + || die
+	fi
+}
+
+src_install() {
+	mv "${MWT_D}${EPREFIX}"/* "${ED}" || die
+
+	find "${ED}" -type f -name '*.la' -delete || die
+}
+
+pkg_postinst() {
+	if [[ ! ${REPLACING_VERSIONS} ]]; then
+		elog "Note that this package is primarily intended for Wine and related"
+		elog "packages to depend on without needing a manual crossdev setup."
+		elog
+		elog "Settings are oriented only for what these need and simplicity."
+		elog "Use sys-devel/crossdev if need full toolchain/customization:"
+		elog "    https://wiki.gentoo.org/wiki/Mingw"
+		elog "    https://wiki.gentoo.org/wiki/Crossdev"
+	fi
+
+	local cross_gcc=cross-$(usex x86 i686 x86_64)-w64-mingw32/gcc
+	if has_version ${cross_gcc}; then
+		# encourage cleanup given users may not realize if switch by default
+		ewarn "${cross_gcc} is installed, note that ${PN}"
+		ewarn "is redundant with the *-w64-mingw32/{binutils,gcc,mingw64-runtime}"
+		ewarn "packages and optionally only one needs to be kept."
+	fi
+}