# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1524567899 -10800
# Node ID ceab908790c4eb7cd01c40bd16581ef794222ca5
# Parent  fa0e093b64d77e138cd9d8b7e7ef03cc56bd7f4a
Configure: fixed clang version detection (closes #1539).

While 325b3042edd6 fixed it on MINIX, it broke it on systems
that output the word "version" on several lines with "cc -v".
The fix is to only consider "clang version" or "LLVM version"
as clang version, but this time only using sed(1).

diff --git a/auto/cc/clang b/auto/cc/clang
--- a/auto/cc/clang
+++ b/auto/cc/clang
@@ -6,7 +6,8 @@
 
 
 NGX_CLANG_VER=`$CC -v 2>&1 | grep 'version' 2>&1 \
-                           | sed -e 's/^.* version \(.*\)/\1/'`
+                           | sed -n -e 's/^.*clang version \(.*\)/\1/p' \
+                                    -e 's/^.*LLVM version \(.*\)/\1/p'`
 
 echo " + clang version: $NGX_CLANG_VER"