From 02e9eb739ada36829cceb19d253a306cc52f79f8 Mon Sep 17 00:00:00 2001
From: Gerion Entrup <gerion.entrup@flump.de>
Date: Tue, 25 Jun 2024 10:30:40 +0200
Subject: Revert "sys-libs/llvm-libunwind: Remove LLVM 14"

This reverts commit 8e1b3fa13b176bc2862cc5335db667b3427b4391.

Signed-off-by: Gerion Entrup <gerion.entrup@flump.de>
---
 .../llvm-libunwind/llvm-libunwind-14.0.6-r1.ebuild | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 sys-libs/llvm-libunwind/llvm-libunwind-14.0.6-r1.ebuild

diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-14.0.6-r1.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.6-r1.ebuild
new file mode 100644
index 0000000..a1133ea
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.6-r1.ebuild
@@ -0,0 +1,119 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..10} )
+inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 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"
+KEYWORDS="amd64 arm arm64 ~ppc ppc64 ~riscv sparc x86 ~x64-macos"
+IUSE="debug static-libs test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+# llvm-6 for new lit options
+DEPEND="
+	>=sys-devel/llvm-6
+"
+BDEPEND="
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		>=sys-devel/clang-3.9.0
+		$(python_gen_any_dep 'dev-python/lit[${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[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+
+	# https://github.com/llvm/llvm-project/issues/56825
+	# also separately bug #863917
+	filter-lto
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	local mycmakeargs=(
+		-DPython3_EXECUTABLE="${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
+		-DLIBUNWIND_TARGET_TRIPLE="${CHOST}"
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${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="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+
+		# meh, we need to override the compiler explicitly
+		sed -e "/%{cxx}/s@, '.*'@, '${clang_path}'@" \
+			-i "${BUILD_DIR}"/libunwind/test/lit.site.cfg || die
+	fi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}
-- 
cgit v1.2.3-65-gdbad