From fbf64174fe8b6a3a8ab93a0fc25b3acfa61ddbf2 Mon Sep 17 00:00:00 2001
From: Peter Kokot <peterkokot@gmail.com>
Date: Tue, 3 Sep 2024 01:14:17 +0200
Subject: [PATCH] Fix library append check with AS_CASE

The ac_cv_search_shm_open is either "no", "none required" or "-lrt".
This appends it only when some library containing shm_open is found.
---
 config.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config.m4 b/config.m4
index 3559453..6eea7a5 100644
--- a/config.m4
+++ b/config.m4
@@ -220,7 +220,7 @@ if test "$PHP_APCU" != "no"; then
   LIBS_SAVED=$LIBS; LIBS=
   AC_SEARCH_LIBS([shm_open], [rt])
   LIBS=$LIBS_SAVED
-  AS_VAR_IF([ac_cv_search_shm_open], ["none required"], [],
+  AS_CASE([$ac_cv_search_shm_open], ["none required"|no], [],
     [PHP_ADD_LIBRARY([rt], [], [APCU_SHARED_LIBADD])])
 
   PHP_NEW_EXTENSION([apcu], [$apc_sources], [$ext_shared],, [$APCU_CFLAGS])