[patch] Patch to llvm ebuild to always use bundled llvm-tblgen version

sys-devel_llvm_llvm-15.0.6.ebuild.patch (text/plain), 976 bytes, created by Jocelyn Mayer on 2023-01-31 11:51:42 UTC

--- sys-devel/llvm/llvm-15.0.6.ebuild	2022-12-18 06:10:24.000000000 +0100
+++ sys-devel/llvm/llvm-15.0.6.ebuild	2022-12-21 08:42:19.145491815 +0100
@@ -419,12 +428,12 @@
 
 	if tc-is-cross-compiler; then
-		local tblgen="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/llvm-tblgen"
-		[[ -x "${tblgen}" ]] \
-			|| die "${tblgen} not found or usable"
 		mycmakeargs+=(
 			-DCMAKE_CROSSCOMPILING=ON
-			-DLLVM_TABLEGEN="${tblgen}"
 		)
 	fi
+	local HOST_BUILD_DIR=${WORKDIR}/${PN}_build-"$( multilib_get_enabled_abi_pairs | tail -n 1 )"
+	mycmakeargs+=(
+		-DLLVM_TABLEGEN="${HOST_BUILD_DIR}/bin/llvm-tblgen"
+	)
 
 	# workaround BMI bug in gcc-7 (fixed in 7.4)
@@ -453,4 +465,9 @@
 
 multilib_src_compile() {
+	if ! multilib_is_native_abi; then
+		# Make sure native llvm-tblgen has been built
+		local HOST_BUILD_DIR=${WORKDIR}/${PN}_build-"$( multilib_get_enabled_abi_pairs | tail -n 1 )"
+		cd ${HOST_BUILD_DIR} && ninja -v llvm-tblgen && cd -
+	fi
 	cmake_build distribution