diff -r b74ff34537ac -r 141db8da8c18 common/autoconf/toolchain.m4
--- a/common/autoconf/toolchain.m4	Wed Mar 16 13:36:17 2016 +0100
+++ b/common/autoconf/toolchain.m4	Sat Mar 19 01:28:49 2016 +0000
@@ -92,11 +92,11 @@
   REFERENCE_VERSION=ARG_VERSION
 
   if [ [[ "$REFERENCE_VERSION" =~ (.*\.){3} ]] ]; then
-    AC_MSG_ERROR([Internal errror: Cannot compare to ARG_VERSION, only three parts (X.Y.Z) is supported])
+    AC_MSG_ERROR([Internal error: Cannot compare to ARG_VERSION, only three parts (X.Y.Z) is supported])
   fi
 
   if [ [[ "$REFERENCE_VERSION" =~ [0-9]{6} ]] ]; then
-    AC_MSG_ERROR([Internal errror: Cannot compare to ARG_VERSION, only parts < 99999 is supported])
+    AC_MSG_ERROR([Internal error: Cannot compare to ARG_VERSION, only parts < 99999 is supported])
   fi
 
   # Version comparison method inspired by http://stackoverflow.com/a/24067243
@@ -403,7 +403,7 @@
     COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
         $SED -e 's/ *Copyright .*//'`
     COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
-        $SED -e 's/^.* \(@<:@1-9@:>@\.@<:@0-9.@:>@*\) .*$/\1/'`
+        $SED -e 's/^.* \(@<:@1-9@:>@\.@<:@0-9.@:>@*\)@<:@^0-9.@:>@.*$/\1/'`
   elif test  "x$TOOLCHAIN_TYPE" = xclang; then
     # clang --version output typically looks like
     #    Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)