From 5e57eeda8c15d40761bdb5950abcbbc34db6ad92 Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Wed, 24 Nov 2021 16:01:56 +0100
Subject: [PATCH] fix gdImagePngCtxEx call with system libgd

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

diff --git a/ext/gd/gd.c b/ext/gd/gd.c
index 81da12668204d..06ee959437935 100644
--- a/ext/gd/gd.c
+++ b/ext/gd/gd.c
@@ -4191,7 +4191,11 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type,
 			(*func_p)(im, ctx, (int) quality);
 			break;
 		case PHP_GDIMG_TYPE_PNG:
-			(*func_p)(im, ctx, (int) quality, (int) basefilter);
+#ifdef HAVE_GD_BUNDLED
+			gdImagePngCtxEx(im, ctx, (int) quality, (int) basefilter);
+#else
+			gdImagePngCtxEx(im, ctx, (int) quality);
+#endif
 			break;
 		case PHP_GDIMG_TYPE_GIF:
 			(*func_p)(im, ctx);