From: Christoph M. Becker <cmbecker69@gmx.de>
Date: Thu, 21 Nov 2019 08:49:29 +0000 (+0100)
Subject: Fix #78849: GD build broken with -D SIGNED_COMPARE_SLOW
X-Git-Tag: php-7.3.13RC1~15^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9b92c1d15415de0cdb14c8cf7b7575238ce380ca;p=php

Fix #78849: GD build broken with -D SIGNED_COMPARE_SLOW

Apparently, this has not been tested for a long time, and might be a
refactoring relict.  Anyhow, we have to pass the context to
`GIFNextPixel` as well.
---

diff --git a/NEWS b/NEWS
index ecec337379..c3d4783ebe 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,9 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? 2019, PHP 7.2.26
 
+- GD:
+  . Fixed bug #78849 (GD build broken with -D SIGNED_COMPARE_SLOW). (cmb)
+
 - Intl:
   . Fixed bug #78804 (Segmentation fault in Locale::filterMatches). (Stas)
 
diff --git a/ext/gd/libgd/gd_gif_out.c b/ext/gd/libgd/gd_gif_out.c
index cd4ea1529b..c0a0433f4d 100644
--- a/ext/gd/libgd/gd_gif_out.c
+++ b/ext/gd/libgd/gd_gif_out.c
@@ -534,7 +534,7 @@ compress(int init_bits, gdIOCtxPtr outfile, gdImagePtr im, GifCtx *ctx)
     output( (code_int)ctx->ClearCode, ctx );
 
 #ifdef SIGNED_COMPARE_SLOW
-    while ( (c = GIFNextPixel( im )) != (unsigned) EOF ) {
+    while ( (c = GIFNextPixel( im, ctx )) != (unsigned) EOF ) {
 #else /*SIGNED_COMPARE_SLOW*/
     while ( (c = GIFNextPixel( im, ctx )) != EOF ) {  /* } */
 #endif /*SIGNED_COMPARE_SLOW*/