dev-ml/llvm: Add 23.0.0_pre20260605

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

dev-ml/llvm/Manifest

@@ -14,4 +14,5 @@ DIST llvm-project-22.1.6.src.tar.xz 167043464 BLAKE2B 86b5f0da9ced0ffc6e2c765f4d
 DIST llvm-project-22.1.6.src.tar.xz.sig 119 BLAKE2B faba6f95374bc9ffda950b7cb727246e3d05173a1b790f669722fe97aff5f5a7a840324b3f1721a424393e3dbf56d768868d65a1cfac107a49487e0111a8d87f SHA512 6aeaac226c3099ac1120e57daf9be4161855e17415df7117b9091a0c1a32022d27a842cdf208d17ee389b2be003577688565abbb18c78d94d56c3a38d56bb035
 DIST llvm-project-22.1.7.src.tar.xz 167066344 BLAKE2B 201b7f8f8b4216ad250f9dcdc87f817ac2dac99c1c7f151077e46165c0efae6d04c33c84c70c04c670fe0733e621af866f78d4d93f49e4d8385645f71495f53b SHA512 b7e56121cd6cb24085185ca0b621fec272dd9aa237c49a901043a9a4c31fdbc1ff33e650891d9786cd9495c006e87d4553ac36b518c864c75e99a80e40771bfd
 DIST llvm-project-22.1.7.src.tar.xz.sig 119 BLAKE2B 0a1125837ae881dcb356c43e6fcd24dd14e107cd045524906b3879db94184e2c74835ce1e3ee026e55790af5be4b861d629546de6f74374e71e164a571c6ecd0 SHA512 d56bc596b642d6e6e63f1d141dbc7b8151e58befc70fd3d28847f023789823c9daf90100be233ab6597219037ee28187e6e8996992b7226568265c205abad266
+DIST llvm-project-6d4cd34d861baec5a761d15b81395fbe88f4391b.tar.gz 273781215 BLAKE2B 9ca9896ac0cfcb9449bd0975e16aca725e14ce5a4c3afd859799ef056a0e1341d63fa21b9bfd3ec1bee2a8482c5cecdd59482d373db72f083d399748a2396e15 SHA512 407e7d2ae1df19bf6095a953a1506583de91e203c4d0461b85a87f86d2069f2b23114b65c5c7f0065d9fbbf8d657bec6ef489ba9310b89f0bddab22c86cccb04
 DIST llvm-project-8789401c6f0b2c53ba348860c1b0c5df1fa40c8c.tar.gz 271359638 BLAKE2B 31d1c91b535f129cac4b1da7ce2e6f0765231ebe6a5b1cb83f00d56d68820cdd029f7d2fdf602148e37bc9a22d99b71e25284eab74b8d52fa87ed4636712171f SHA512 4ca908b0b5d7ae9a2b334d033d2c11b557dcc3305b9107017965ae612716beade09a0c73e1a5f5eab1c9794728558d4a981715bb9b01d5ba2c2c5c6c53d1a9b6

dev-ml/llvm/llvm-23.0.0_pre20260605.ebuild

@@ -0,0 +1,107 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{11..14} )
+inherit cmake llvm.org llvm-utils python-any-r1
+
+DESCRIPTION="OCaml bindings for LLVM"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0/${PV}"
+IUSE="+debug test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	>=dev-lang/ocaml-4.00.0:0=
+	dev-ml/ocaml-ctypes:=
+	~llvm-core/llvm-${PV}:=[debug?]
+	!llvm-core/llvm[ocaml(-)]
+"
+
+DEPEND="
+	${RDEPEND}
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	dev-lang/perl
+	dev-ml/findlib
+"
+
+LLVM_COMPONENTS=( llvm cmake libc third-party )
+LLVM_USE_TARGETS=llvm
+llvm.org_set_globals
+
+src_configure() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DLLVM_BUILD_LLVM_DYLIB=ON
+		-DLLVM_LINK_LLVM_DYLIB=ON
+		-DLLVM_OCAML_OUT_OF_TREE=ON
+
+		# cheap hack: LLVM combines both anyway, and the only difference
+		# is that the former list is explicitly verified at cmake time
+		-DLLVM_TARGETS_TO_BUILD=""
+		-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+		-DLLVM_BUILD_TESTS=$(usex test)
+
+		# disable various irrelevant deps and settings
+		-DLLVM_ENABLE_FFI=OFF
+		-DLLVM_ENABLE_TERMINFO=OFF
+		-DHAVE_HISTEDIT_H=NO
+		-DLLVM_ENABLE_ASSERTIONS=$(usex debug)
+		-DLLVM_ENABLE_EH=ON
+		-DLLVM_ENABLE_RTTI=ON
+
+		-DLLVM_HOST_TRIPLE="${CHOST}"
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+
+		# TODO: ocamldoc
+	)
+
+	use test && mycmakeargs+=(
+		-DLLVM_LIT_ARGS="$(get_lit_flags)"
+	)
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	# also: custom rules for OCaml do not work for CPPFLAGS
+	use debug || local -x CFLAGS="${CFLAGS} -DNDEBUG"
+	cmake_src_configure
+
+	local llvm_libdir=$(llvm-config --libdir)
+	# an ugly hack; TODO: figure out a way to pass -L to ocaml...
+	cd "${BUILD_DIR}/${libdir}" || die
+	ln -s "${llvm_libdir}"/*.so . || die
+
+	if use test; then
+		local llvm_bindir=$(llvm-config --bindir)
+		# Force using system-installed tools.
+		sed -i -e "/llvm_tools_dir/s@\".*\"@\"${llvm_bindir}\"@" \
+			"${BUILD_DIR}"/test/lit.site.cfg.py || die
+	fi
+}
+
+src_compile() {
+	cmake_build ocaml_all
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-llvm-bindings-ocaml
+}
+
+src_install() {
+	DESTDIR="${D}" \
+	cmake -P "${BUILD_DIR}"/bindings/ocaml/cmake_install.cmake || die
+
+	dodoc bindings/ocaml/README.txt
+}