[gentoo-dev] [PATCH 2/2] eclass/toolchain-funcs: add clang version functions

[Austin English]

From ec0be3d1a808ea0c5bdd081a4bb935f86bf78d44 Mon Sep 17 00:00:00 2001
From: Austin English <wizardedit@g.o>
Date: Mon, 27 Jun 2016 16:58:07 -0500
Subject: [PATCH 2/2] eclass/toolchain-funcs: add clang version functions

Signed-off-by: Austin English <wizardedit@g.o>
---
 eclass/toolchain-funcs.eclass | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass
index fb8b2f9..9bb5232 100644
--- a/eclass/toolchain-funcs.eclass
+++ b/eclass/toolchain-funcs.eclass
@@ -642,6 +642,39 @@ gcc-micro-version() {
 	_gcc_fullversion '$3' "$@"
 }

+# Internal func. Based on _gcc_fullversion() above.
+_clang_fullversion() {
+	local ver="$1"; shift
+	set -- $($(tc-getCPP "$@") -E -P - <<<"__clang_major__ __clang_minor__
__clang_patchlevel__")
+	eval echo "$ver"
+}
+
+# @FUNCTION: clang-fullversion
+# @RETURN: compiler version (major.minor.micro: [3.4.6])
+clang-fullversion() {
+	_clang_fullversion '$1.$2.$3' "$@"
+}
+# @FUNCTION: clang-version
+# @RETURN: compiler version (major.minor: [3.4].6)
+clang-version() {
+	_clang_fullversion '$1.$2' "$@"
+}
+# @FUNCTION: clang-major-version
+# @RETURN: major compiler version (major: [3].4.6)
+clang-major-version() {
+	_clang_fullversion '$1' "$@"
+}
+# @FUNCTION: clang-minor-version
+# @RETURN: minor compiler version (minor: 3.[4].6)
+clang-minor-version() {
+	_clang_fullversion '$2' "$@"
+}
+# @FUNCTION: clang-micro-version
+# @RETURN: micro compiler version (micro: 3.4.[6])
+clang-micro-version() {
+	_clang_fullversion '$3' "$@"
+}
+
 # Returns the installation directory - internal toolchain
 # function for use by _gcc-specs-exists (for flag-o-matic).
 _gcc-install-dir() {
-- 
2.7.3