From 591b6e7d59935b5a9782c692c922ecf1e0372094 Mon Sep 17 00:00:00 2001
From: foobar <sniper@php.net>
Date: Mon, 20 Jan 2003 10:39:39 +0000
Subject: [PATCH] MFH

---
 ext/gd/config.m4 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ext/gd/config.m4 b/ext/gd/config.m4
index fcbedc73e7..ddea19921e 100644
--- a/ext/gd/config.m4
+++ b/ext/gd/config.m4
@@ -83,7 +83,11 @@ AC_DEFUN(PHP_GD_PNG,[
     if test "$PHP_ZLIB_DIR" = "no"; then
       AC_MSG_ERROR([PNG support requires ZLIB. Use --with-zlib-dir=<DIR>])
     fi
-    
+
+    if test ! -f $GD_PNG_DIR/include/png.h; then
+      AC_MSG_ERROR([png.h not found.])
+    fi
+
     PHP_CHECK_LIBRARY(png,png_write_image,
     [
       PHP_ADD_INCLUDE($GD_PNG_DIR/include)
-- 
2.40.0