From a874ba472151c6811018de322a5787d0ca6148c9 Mon Sep 17 00:00:00 2001
From: Gustavo Zacarias <gustavo@zacarias.com.ar>
Date: Tue, 9 Aug 2016 11:52:51 +0200
Subject: [PATCH] ext/fileinfo/config.m4: allow cache answer for strcasestr
 discovery

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
---
 ext/fileinfo/config.m4 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ext/fileinfo/config.m4 b/ext/fileinfo/config.m4
index 7e98d62..8561962 100644
--- a/ext/fileinfo/config.m4
+++ b/ext/fileinfo/config.m4
@@ -14,6 +14,7 @@ if test "$PHP_FILEINFO" != "no"; then
     libmagic/readcdf.c libmagic/softmagic.c"
 
   AC_MSG_CHECKING([for strcasestr])
+  AC_CACHE_VAL(ac_cv_func_strcasestr,
   AC_TRY_RUN([
 #include <string.h>
 #include <strings.h>
@@ -46,7 +47,7 @@ int main(void)
     AC_MSG_RESULT(no)
     AC_MSG_NOTICE(using libmagic strcasestr implementation)
     libmagic_sources="$libmagic_sources libmagic/strcasestr.c"
-  ])
+  ]))
 
   PHP_NEW_EXTENSION(fileinfo, fileinfo.c $libmagic_sources, $ext_shared,,-I@ext_srcdir@/libmagic)
   PHP_ADD_BUILD_DIR($ext_builddir/libmagic)
-- 
2.7.4