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ftp://ftp.netbsd.org/pub/pkgsrc/current/pkgsrc/graphics/gif2png/patches/patch-aa
--- gif2png.c
+++ gif2png.c
@@ -10,6 +10,7 @@
#include <string.h>
#include <stdlib.h>
#include <unistd.h> /* for isatty() */
+#include <zlib.h>
#if !defined(TRUE)
#define FALSE 0
@@ -120,8 +121,8 @@ int writefile(struct GIFelement *s,struc
int colors_used = 0;
byte remap[MAXCMSIZE];
int low_prec;
- png_struct *png_ptr = xalloc(sizeof (png_struct));
- png_info *info_ptr = xalloc(sizeof (png_info));
+ png_struct *png_ptr;
+ png_info *info_ptr;
int p;
int gray_bitdepth;
png_color pal_rgb[MAXCMSIZE], *pltep;
@@ -136,6 +137,19 @@ int writefile(struct GIFelement *s,struc
png_text software;
png_text comment;
+ png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ if (png_ptr == NULL) {
+ fprintf(stderr, "gif2png: fatal error, out of memory\n");
+ fprintf(stderr, "gif2png: exiting ungracefully\n");
+ exit(1);
+ }
+ info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL) {
+ fprintf(stderr, "gif2png: fatal error, out of memory\n");
+ fprintf(stderr, "gif2png: exiting ungracefully\n");
+ exit(1);
+ }
+
/* these volatile declarations prevent gcc warnings ("variable might be
* clobbered by `longjmp' or `vfork'") */
volatile int gray = TRUE;
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