From 51381f01b1e1cd8ca85594f0dd5a5e3f380a1095 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 17:05:13 +0200
Subject: [PATCH] configure: avoid bashisms
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The variable substitution used to parse the clang version was a bashism, so
it broke on Debian/Ubuntu. So let's just use sed instead.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
 configure | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 06fc1fe..b65066e 100755
--- a/configure
+++ b/configure
@@ -28,8 +28,9 @@ check_toolchain()
     done
 
     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 $clang_version"
+    clang_major_version=$(echo "$clang_version" | sed 's/\..*$//')
+    if [ "$clang_major_version" -lt "11" ]; then
+        echo "ERROR: Need clang version >= 11, found $clang_major_version ($clang_version)"
         exit 1
     fi
     echo "clang: $clang_version"