dev-util/include-what-you-use: add 0.25

* Migrate to llvm-r2.eclass.
* Enable python3.14 support.

Signed-off-by: Alfred Wingate <parona@protonmail.com>
Part-of: https://github.com/gentoo/gentoo/pull/43922
Closes: https://github.com/gentoo/gentoo/pull/43922
Signed-off-by: Florian Schmaus <flow@gentoo.org>

dev-util/include-what-you-use/Manifest

@@ -1,2 +1,3 @@
 DIST include-what-you-use-0.23.tar.gz 813726 BLAKE2B 845101985d1c39925605d2908ad76c40b8df0838467d7afd83b644914893f8e32ed1563348e568bc126ea4349ab390b189b734f66cf3b8da75277af169313a23 SHA512 5c2bbda7dbc614089717d2a4f8b9a96111dc30efcdd331a21c548399d58b47229210d5f17eb48eeb56c44797068ebac634a5d68a5c50ff322753e5f7965b3d48
 DIST include-what-you-use-0.24.tar.gz 821159 BLAKE2B 191d0299c0b5ad6ed75cb24b5530fe606dc6a9ddb91b8d1667ba6f5b909498354b7565e0ebafbfd56eb6e1c4e1c1cf885a0d08b8584d33fae34c4dcbde92ff65 SHA512 62d26a0e646cb6d94d5dee8d672009b938fdcfe64c5c6086693295e90d858754d9a6706b063ddc2cfe5660181df2722a4becfb56285b8cfc6d60f88f729924b7
+DIST include-what-you-use-0.25.tar.gz 847859 BLAKE2B 845525d948d323f1364ec33ff4e6bf55911d74727a297fa008d929fb3af06f290cf1da64e07ad29ef5a661ef8656a4afde5d4c487d89591cca28eb57c1983b49 SHA512 80bdde7edc7f9576eb7ddb36ce0f3dbdc918c46d2bb45362a8583353821275fa6e8058ff091b91c2417e749995d60d6cd1744fcb73b52cbe13829e4c1a0de637

dev-util/include-what-you-use/include-what-you-use-0.25.ebuild

@@ -0,0 +1,104 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{11..14} )
+LLVM_COMPAT=( 21 )
+
+inherit cmake llvm-r2 python-single-r1 toolchain-funcs
+
+DESCRIPTION="Find unused include directives in C/C++ programs"
+HOMEPAGE="https://include-what-you-use.org/"
+SRC_URI="
+	https://github.com/${PN}/${PN}/archive/${PV}.tar.gz
+		-> ${P}.tar.gz
+"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+
+RDEPEND="
+	$(llvm_gen_dep '
+		llvm-core/clang:${LLVM_SLOT}=
+		llvm-core/llvm:${LLVM_SLOT}=
+	')
+	${PYTHON_DEPS}
+"
+DEPEND="${RDEPEND}"
+
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+pkg_setup() {
+	llvm-r2_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	cmake_src_prepare
+	python_fix_shebang .
+}
+
+src_configure() {
+	local mycmakeargs=(
+		# Note [llvm install path]
+		# Unfortunately all binaries using clang driver
+		# have to reside at the same path depth as
+		# 'clang' binary itself. See bug #625972
+		# Thus as a hack we install it to the same directory
+		# as llvm/clang itself.
+		-DCMAKE_INSTALL_PREFIX="$(get_llvm_prefix)"
+		# Relative path to the clang library
+		# https://github.com/include-what-you-use/include-what-you-use/commit/e046d23571876e72719ef96a36ff0cb1cb2e64b6
+		-DIWYU_RESOURCE_DIR="../../../clang/${LLVM_SLOT}"
+	)
+	cmake_src_configure
+}
+
+# tc-cpp-is-true and tc-get-cxx-stdlib smashed together
+tc-cxx-is-true() {
+	local CONDITION=${1}
+
+	$(tc-getCXX)  ${CPPFLAGS} ${CXXFLAGS} -x c++ -E -P - <<-EOF >/dev/null 2>&1
+	#if __cplusplus >= 202002L
+	#include <version>
+	#else
+	#include <ciso646>
+	#endif
+	#if ${CONDITION}
+	true
+	#else
+	#error false
+	#endif
+	EOF
+}
+
+src_test() {
+	local -a CMAKE_SKIP_TESTS=()
+
+	if tc-cxx-is-true "defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE >= 15)"; then
+		CMAKE_SKIP_TESTS+=(
+			cxx.test_precomputed_tpl_args
+			cxx.test_precomputed_tpl_args_cpp14
+		)
+	fi
+
+	# There could be failures with older libcxx versions as well.
+	if tc-cxx-is-true "defined(_LIBCPP_VERSION) && (_LIBCPP_VERSION >= 210101)"; then
+		CMAKE_SKIP_TESTS+=(
+			cxx.test_badinc
+			cxx.test_expl_inst_macro
+			cxx.test_iterator
+			cxx.test_libbuiltins
+			cxx.test_no_char_traits
+			cxx.test_overloaded_class
+			cxx.test_placement_new
+			cxx.test_precomputed_tpl_args
+			cxx.test_precomputed_tpl_args_cpp14
+			cxx.test_stl_container_provides_allocator
+		)
+	fi
+
+	cmake_src_test
+}