From 6ce439ebde10f618cc78622a8f919c3624767fda Mon Sep 17 00:00:00 2001
From: Ruslan Ermilov <ru@nginx.com>
Date: Tue, 24 Apr 2018 14:04:59 +0300
Subject: [PATCH] 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).
---
 auto/cc/clang | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/auto/cc/clang b/auto/cc/clang
index 9d900c258..a962ee234 100644
--- 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"