From 98d2b923243d406b3d26f0770ac02f917729b948 Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Thu, 4 Sep 2025 09:01:49 +0200
Subject: [PATCH] Fix GH-19681 PHP_EXPAND_PATH broken with bash 5.3.0

---
 build/php.m4 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/build/php.m4 b/build/php.m4
index 142ddf08fd98b..e5ead0f4c44af 100644
--- a/build/php.m4
+++ b/build/php.m4
@@ -64,7 +64,11 @@ AC_DEFUN([PHP_EXPAND_PATH],[
     changequote({,})
     ep_dir=`echo $1|$SED 's%/*[^/][^/]*/*$%%'`
     changequote([,])
-    ep_realdir=`(cd "$ep_dir" && pwd)`
+    if test -z $ep_dir ; then
+      ep_realdir=`(pwd)`
+    else
+      ep_realdir=`(cd "$ep_dir" && pwd)`
+    fi
     $2="$ep_realdir"/`basename "$1"`
   fi
 ])