sys-libs/llvm-libunwind: Add 19.1.0_rc4

Signed-off-by: Michał Górny <mgorny@gentoo.org>

sys-libs/llvm-libunwind/Manifest

@@ -8,5 +8,7 @@ DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffe
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
 DIST llvm-project-19.1.0-rc3.src.tar.xz 141250388 BLAKE2B 6530bede000d2e4b8ce10b445bfc1f81dc25c2d7121fc953581cd9b6989b3ba197707cd79d3c7b94c055bf2e21b0d07ab3cb401d3f73d22eefba6da4b71dca7b SHA512 3ee4eab848e5e38c396e6f5addf5eb42570d451fc8e7cd77150dc5542f8f710f4a9db51836f7a799996dd1b8194defe4d58efe7c19e5d5e1c5f3dbdda94c0cf3
 DIST llvm-project-19.1.0-rc3.src.tar.xz.sig 438 BLAKE2B 86bad4d4fb805340096473bc603d7a3483f030f62b6f52b64d12c33561fbbb999c2ab69cc94857a32747492c846a5ab631a84da200b03475fd401335373bbccf SHA512 ef0fd2e3e7069fbfd410cbcf71294d1b7182456330ff151348058b5cb0f292edaecb9dcbf613ee4fc979214a23bd3bb8077d71e674635359da36b938dc143266
+DIST llvm-project-19.1.0-rc4.src.tar.xz 141255904 BLAKE2B c693dc94aeb4b59ad4a05a426037075449535c398cbc1ae9b4371d42ea0962b267a3be8af93f4fe47b21c11964fbea6e8eb662225e6f79b20bbc35e706588435 SHA512 826978a596b26040124f2ceba858f91031f78faca22f32de2eea1a4d299a849dcb1fffdfb01601adc39d733dd0cdee43b21af05159d45dcebc842f6b6b540ba8
+DIST llvm-project-19.1.0-rc4.src.tar.xz.sig 438 BLAKE2B aef02737285d2faa1b21cec1a32fff6e776ac4bb5c4fd6f26d3d1a9b9244ed1fc0a1eb786a444a6549dda8683485f67964b4d4e48393e1780e7938ee0d94348a SHA512 5b9dcbf232229fdd87824bc87d0ad4ebd54127c9288708fb3304166422d378b77a843d7c5d8258850a0de59310c24e65042d636a5314e2af8513627a43bdb6e8
 DIST llvm-project-503907dc505db1e439e7061113bf84dd105f2e35.tar.gz 218750576 BLAKE2B 40904dbf62cffe9cb757cc1382a765d5c89791948e86bfa4fbdc5a78ebc11cc82588bc730e6c5c84b6d84922cd32290df0146733a013ffa4e408b8a7c2313a1f SHA512 a121cca2ef49c6b25f137e66d23d332d2f9e3bd0d349b1202b6869f7c85a141aecfe20a6c4d4eff84e32a243216740f20114968589207d39df229daf6443ba0d
 DIST llvm-project-5500e21942f7047344b6fee62d3e08c0ba2f9182.tar.gz 219148250 BLAKE2B 61880a13086c46ac9a9f8326b1e007146afb1662a0a223703fe36a91da230d5708b368f1177e76ac13c1e5a30f620c4ce6346484a0a67a0f011a816bba4d13f9 SHA512 a6d4fcae960b450be2abd2da485cea638b73290b17ceeabf560651d614f55925f86ee6f76a116262d8a1ff70ba699468cb4cf4c32015e26540ba6e47c58db1b7

sys-libs/llvm-libunwind/llvm-libunwind-19.1.0_rc4.ebuild

@@ -0,0 +1,128 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit cmake-multilib flag-o-matic llvm.org llvm-utils python-any-r1
+inherit toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://llvm.org/docs/ExceptionHandling.html"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+IUSE="+clang +debug static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libunwind libcxx llvm/cmake cmake )
+LLVM_TEST_COMPONENTS=( libcxxabi llvm/utils/llvm-lit )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	local libdir=$(get_libdir)
+
+	# https://github.com/llvm/llvm-project/issues/56825
+	# also separately bug #863917
+	filter-lto
+
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	# Respect upstream build type assumptions (bug #910436) where they do:
+	# -DLIBUNWIND_ENABLE_ASSERTIONS=ON =>
+	#       -DCMAKE_BUILD_TYPE=DEBUG  => -UNDEBUG
+	#       -DCMAKE_BUILD_TYPE!=debug => -DNDEBUG
+	# -DLIBUNWIND_ENABLE_ASSERTIONS=OFF =>
+	#       -UNDEBUG
+	# See also https://github.com/llvm/llvm-project/issues/86#issuecomment-1649668826.
+	use debug || append-cppflags -DNDEBUG
+
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES="libunwind"
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
+		-DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
+		-DLIBUNWIND_INCLUDE_TESTS=$(usex test)
+		-DLIBUNWIND_INSTALL_HEADERS=ON
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${use_compiler_rt}
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_ENABLE_RUNTIMES="libunwind;libcxxabi;libcxx"
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DLIBUNWIND_LIBCXX_PATH="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}