llvm-core/flang: Add 21.1.4

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

llvm-core/flang/Manifest

@@ -2,6 +2,8 @@ DIST llvm-project-21.1.2.src.tar.xz 158926856 BLAKE2B 1b5684586297ad637c6da09768
 DIST llvm-project-21.1.2.src.tar.xz.sig 566 BLAKE2B 6209caf851c681e6f63ed1bd9589ac139c104d6ee21f463aacda472e30a847c32f3bd74a04208af05bb6203d8fa31bdc0028c0e72736a3037940e75eda615415 SHA512 dd8aa57451752a9207c276117a4b8a86f41263ea3ccc4fa198cd40d6fec79acd0ba126c4b84a1acbb52bbb2bce029fbc336deac8131be94747dd04e4a0f69331
 DIST llvm-project-21.1.3.src.tar.xz 158943752 BLAKE2B ad9ee083584cb72fea3722feb518f6c933c3a34ba91b1ca8b724f461aa744475a783512dd6f0ab60d533c73b37e42b32a06f905d4869f770a68180649656df44 SHA512 d3058e7c18ada2a6a6192c7e75970406520e0d2ba390dba3b89e99f05959198fd2976d38c200f8e6af37fb569d866b6367bf6e0e249fe4b340dfab74499e5723
 DIST llvm-project-21.1.3.src.tar.xz.sig 119 BLAKE2B 675873fb6ce9a6b682d0ecdc5ec6ca8691d7f8f6bc72e6039a90c21f99d753a4b595f06676f9b5c1a23ebce872320cc67bd1687e8324f163ecbc4f22032bdf52 SHA512 d218a4071451e32a77890dd2e7de7a3b8a310ca85c7e6d90b88d85bad128979cf6866c9d772b880b50da2ec117832e77ba162049478c1deb7b0299cae008151a
+DIST llvm-project-21.1.4.src.tar.xz 158939036 BLAKE2B b87eff4e3cb881d86aafcfdb46d85344ad6ae92d5c1e72c05282f375b4b11844756d0e6b4d0da5e522a348170a5da9842917737e272b758d8dde7e1fb2bee135 SHA512 a8c0883abe7c5a3e55ca7ed0fd974fae4351184a0b0df18295a982ca8ddb0f8d167353564204ed00f0cd9a1d8baef7074c0b39a99e0b5c52ced6bbee73dde3da
+DIST llvm-project-21.1.4.src.tar.xz.sig 119 BLAKE2B c74a56448ad3e325234fcbe7d62ea888831e1e7696afb5aa5a185ea76a0880abe2d755f9e69a07760bbf9380534c3bb96c920ed6359ffd0f5f51c962d1494dcf SHA512 4812c2e3861aa3b726d842c3ca259b19ef1aa531fed9f6f47099483de91de2b2a165f40d243f6f40f2eea749741d5f8b7090f394399c56db02053f308921077a
 DIST llvm-project-6a0e5b2fd7c340a872ae1e011cfb9de0d188feba.tar.gz 249848364 BLAKE2B 5d8eadfd43e1a131d7c061968c7d306b0537c0983c9366973d5b8d1bab4b384d1319604e12f097e235e077aefcd8b9c8395c3e16b53612f9f06fb11ba358aad6 SHA512 d931218ca1dafab09525f862f4b993cb6dde2f8738092e84b87542318d05c81fd41499098833f8629501c19f4fa741a35fc6447631f1c8830b2bb0b2cb64cc43
 DIST llvm-project-89ed5255b9ee88119e409a6d986eb1ad0e8f08e3.tar.gz 248431210 BLAKE2B b98dfe5ae46190a5a2460c965f0ec51d2f65a9d1d14f82afa19a10f00a2c29520c52309ee66d71efed6361aa675abcc9bd1b5e61e1c3b1aa9bac4984050c2bc2 SHA512 f860f529f4eb67f4a5875d9931accae2f48b88486dd6715a2ca2add7d5aa1541a30e323612394162e65597054d61a879a9ba94e4dbf417c3fb5f8ff069c2d924
 DIST llvm-project-b1e29ec3b73b9dd06656c7e30ace597ff72cde70.tar.gz 248630276 BLAKE2B ea1532ba05661de37f3d6bac6643f2f3000710f4c4b8c508c9b980da64964e60cd46d0b8e18d666b75089f8ad8e2f653ac6098b4054ce8adf7cb0c36220cdf29 SHA512 36471abffd9202c637aa89c53072f0f286beffad2d3908ad50bb4c395a1be0c8138ddcbd67e0c764f59842bcc6c6c31f04a14986c7145c369217a156885ac506

llvm-core/flang/flang-21.1.4.ebuild

@@ -0,0 +1,102 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{11..14} )
+inherit cmake flag-o-matic llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="LLVM's Fortran frontend"
+HOMEPAGE="https://flang.llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions"
+SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
+KEYWORDS="~amd64 ~arm64"
+IUSE="+clang debug test"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	~llvm-core/clang-${PV}[debug=]
+	~llvm-core/llvm-${PV}[debug=]
+	~llvm-core/mlir-${PV}[debug=]
+"
+RDEPEND="
+	${DEPEND}
+"
+PDEPEND="
+	>=llvm-runtimes/flang-rt-${PV}:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? ( llvm-core/clang )
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( flang cmake )
+LLVM_TEST_COMPONENTS=( clang/test/Driver mlir/test/lib )
+LLVM_USE_TARGETS=llvm+eq
+llvm.org_set_globals
+
+python_check_deps() {
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_pretend() {
+	if ! use clang && tc-is-gcc; then
+		ewarn "Building using GCC requires lots of memory (up to 10 GiB per process)."
+		ewarn "Consider enabling USE=clang."
+		ewarn "See https://gcc.gnu.org/PR119705"
+	fi
+}
+
+pkg_setup() {
+	use test && python-any-r1_pkg_setup
+}
+
+src_configure() {
+	if use clang; then
+		# Only do this conditionally to allow overriding with
+		# e.g. CC=clang-13 in case of breakage
+		if ! tc-is-clang ; then
+			local -x CC=${CHOST}-clang
+			local -x CXX=${CHOST}-clang++
+		fi
+
+		strip-unsupported-flags
+	fi
+
+	local mycmakeargs=(
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
+
+		-DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"
+		-DCLANG_RESOURCE_DIR="../../../clang/${LLVM_MAJOR}"
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DMLIR_LINK_MLIR_DYLIB=ON
+		# flang does not feature a dylib, so do not install libraries
+		# or headers
+		-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON
+		# installed by llvm-runtimes/flang-rt
+		-DFLANG_INCLUDE_RUNTIME=OFF
+
+		# TODO: always enable to obtain reproducible tools
+		-DFLANG_INCLUDE_TESTS=$(usex test)
+
+		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+	)
+	use test && mycmakeargs+=(
+		-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+		-DLLVM_LIT_ARGS="$(get_lit_flags)"
+	)
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+	cmake_src_configure
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-flang
+}