From 3afa9757da056e2dc2abf56b0abb7b4276c030d7 Mon Sep 17 00:00:00 2001
From: Akim Demaille <akim.demaille@gmail.com>
Date: Thu, 19 Aug 2021 08:21:23 +0200
Subject: [PATCH] tests: grep -E is not portable

Reported by Dagobert Michelsen.
<https://lists.gnu.org/r/bug-bison/2021-08/msg00008.html>

* tests/calc.at: Use $EGREP.
---
 tests/calc.at | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/calc.at b/tests/calc.at
index 831a2b08..11801543 100644
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -970,7 +970,7 @@ AT_JAVA_IF(
   [AT_PARSER_CHECK([calc $1 input],        0, [m4_ifvaln(m4_quote($3), [$3])], [stderr])])
 AT_LANG_MATCH([c\|c++\|java],
   [AT_GLR_IF([],
-    [AT_CHECK([grep -c -v -E 'Return for a new token:|LAC:' stderr],
+    [AT_CHECK([$EGREP -c -v 'Return for a new token:|LAC:' stderr],
               [ignore],
               [m4_n([AT_DEBUG_IF([$4], [0])])])])])
 ])