From 7003079d8776a89875b3788de20175dc102f3d05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
Date: Mon, 11 Oct 2021 14:20:46 +0200
Subject: [PATCH] configure: Support parsing weird clang versions
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Seems some distributions will change the clang version output to be
something like 'Ubuntu clang version
12.0.1-++20210918042554+fed41342a82f-1~exp1~20210918143322.141'. Fix the
version parsing in configure to not barf on such weird version strings.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
 configure | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 936bfaa..06fc1fe 100755
--- a/configure
+++ b/configure
@@ -27,8 +27,8 @@ check_toolchain()
         fi;
     done
 
-    clang_version=$($CLANG --version | sed -n '/clang version/ s/clang version // p')
-    if [ "${clang_version//\.[0-9\.]*/}" -lt "11" ]; then
+    clang_version=$($CLANG --version | sed -n '/clang version/ s/^.*clang version // p')
+    if [ "${clang_version//.*/}" -lt "11" ]; then
         echo "ERROR: Need clang version >= 11, found $clang_version"
         exit 1
     fi