From d8662b7e3a1344a1fbfcc6822843868c9fa29dce Mon Sep 17 00:00:00 2001
From: "Santiago M. Mola" <santi@mola.io>
Date: Fri, 24 Jul 2020 22:46:11 +0200
Subject: [PATCH] Fix #79895: support = in PHP_CHECK_GCC_ARG m4 macro

---
 build/php.m4 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build/php.m4 b/build/php.m4
index c66550114abdf..a5b18c15aaf18 100644
--- a/build/php.m4
+++ b/build/php.m4
@@ -308,8 +308,8 @@ dnl
 dnl PHP_CHECK_GCC_ARG(arg, action-if-found, action-if-not-found)
 dnl
 AC_DEFUN([PHP_CHECK_GCC_ARG],[
-  gcc_arg_name=[ac_cv_gcc_arg]translit($1,A-Z-,a-z_)
-  AC_CACHE_CHECK([whether $CC supports $1], [ac_cv_gcc_arg]translit($1,A-Z-,a-z_), [
+  gcc_arg_name=[ac_cv_gcc_arg]translit($1,A-Z=-,a-z__)
+  AC_CACHE_CHECK([whether $CC supports $1], [ac_cv_gcc_arg]translit($1,A-Z=-,a-z__), [
   echo 'void somefunc() { };' > conftest.c
   cmd='$CC $1 -c conftest.c'
   if eval $cmd 2>&1 | $EGREP -e $1 >/dev/null ; then