packages: gif2png/gif2png-libpng.patch (NEW) - fixes build with libpng 1.4 ...

[megabajt]

Author: megabajt                     Date: Mon Feb  8 16:01:11 2010 GMT
Module: packages                      Tag: HEAD
---- Log message:
- fixes build with libpng 1.4 (from Gentoo)

---- Files affected:
packages/gif2png:
   gif2png-libpng.patch (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: packages/gif2png/gif2png-libpng.patch
diff -u /dev/null packages/gif2png/gif2png-libpng.patch:1.1
--- /dev/null	Mon Feb  8 17:01:11 2010
+++ packages/gif2png/gif2png-libpng.patch	Mon Feb  8 17:01:03 2010
@@ -0,0 +1,30 @@
+--- a/gif2png.c.orig	2006-07-07 16:40:33.000000000 -0400
++++ b/gif2png.c	2006-07-07 16:43:25.000000000 -0400
+@@ -135,7 +135,7 @@
+     unsigned long hist_maxvalue;
+     int passcount;
+     int errtype, errorcount = 0;
+-    png_text software;
++    png_text comment, software;
+ 
+     /* these volatile declarations prevent gcc warnings ("variable might be
+      *  clobbered by `longjmp' or `vfork'") */
+@@ -517,10 +517,15 @@
+ 	    j = s->size;
+ 	    if (j > 0 && data[j-1] == '\0')  /* some apps include a NULL in GIF comment */
+ 		--j;
+-	    if (j<500) {
+-		png_write_tEXt(png_ptr, "Comment", (png_charp)data, j);
++      if (j<1000) {
++        comment.compression = PNG_TEXT_COMPRESSION_NONE;
+ 	    } else {
+-		png_write_zTXt(png_ptr, "Comment", (png_charp)data, j, 0);
++        comment.compression = PNG_TEXT_COMPRESSION_zTXt;
++        comment.key = "Comment";
++        comment.text = data;
++        comment.text_length = j;
++
++        png_set_text(png_ptr, info_ptr, &comment, 1);
+ 	    }
+ 	    break;
+ 
================================================================