From: Michał Górny <mgorny@gentoo.org>
Date: Sat, 14 Jan 2017 14:51:21 +0000 (+0100)
Subject: sys-libs/compiler-rt-sanitizers: Obtain version from llvm-config
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=c3db0f88fca16c72a0c8503260f6fdf9574cfc9f;p=gentoo.git

sys-libs/compiler-rt-sanitizers: Obtain version from llvm-config

Obtain the clang version that is used to build paths from llvm-config,
instead of hardcoding it in ebuild. This matches the method used in
upstream code (obtaining it from CMake files), and works both for
release and live ebuilds. It is fine to rely on llvm-config since we
need it for LLVM macros anyway.
---

diff --git a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild
index 6b075cdac023..c933e5339044 100644
--- a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild
+++ b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild
@@ -56,7 +56,8 @@ src_configure() {
 	# pre-set since we need to pass it to cmake
 	BUILD_DIR=${WORKDIR}/${P}_build
 
-	local clang_version=4.0.0
+	local llvm_version=$(llvm-config --version) || die
+	local clang_version=$(get_version_component_range 1-3 "${llvm_version}")
 	local libdir=$(get_libdir)
 	local mycmakeargs=(
 		# used to find cmake modules