Merge branch 'mg/detect-compiler-in-c-locale'

Build procedure fixup.

* mg/detect-compiler-in-c-locale:
  detect-compiler: make detection independent of locale

detect-compiler

@@ -9,7 +9,7 @@ CC="$*"
 #
 # FreeBSD clang version 3.4.1 (tags/RELEASE...)
 get_version_line() {
-	$CC -v 2>&1 | grep ' version '
+	LANG=C LC_ALL=C $CC -v 2>&1 | grep ' version '
 }
 
 get_family() {