[patch] Patch to sys-devel/clang ebuild to always use bundled clang-tblgen tool

sys-devel_clang_clang-15.0.6.ebuild.patch (text/plain), 958 bytes, created by Jocelyn Mayer on 2023-01-31 11:52:23 UTC

--- sys-devel/clang/clang-15.0.6.ebuild	2022-12-18 06:10:24.000000000 +0100
+++ sys-devel/clang/clang-15.0.6.ebuild	2023-01-04 15:18:25.983389678 +0100
@@ -323,11 +334,12 @@
 
 	if tc-is-cross-compiler; then
-		[[ -x "/usr/bin/clang-tblgen" ]] \
-			|| die "/usr/bin/clang-tblgen not found or usable"
 		mycmakeargs+=(
 			-DCMAKE_CROSSCOMPILING=ON
-			-DCLANG_TABLEGEN=/usr/bin/clang-tblgen
 		)
 	fi
+	local HOST_BUILD_DIR=${WORKDIR}/x/y/clang-"$( multilib_get_enabled_abi_pairs | tail -n 1 )"
+	mycmakeargs+=(
+		-DCLANG_TABLEGEN="${HOST_BUILD_DIR}/bin/clang-tblgen"
+	)
 
 	# LLVM can have very high memory consumption while linking,
@@ -343,4 +357,9 @@
 
 multilib_src_compile() {
+	if ! multilib_is_native_abi; then
+		# Make sure native clang-tblgen has been built
+		local HOST_BUILD_DIR=${WORKDIR}/x/y/clang-"$( multilib_get_enabled_abi_pairs | tail -n 1 )"
+		cd ${HOST_BUILD_DIR} && ninja -v clang-tblgen && cd -
+	fi
 	cmake_build distribution