--- src/gif2swf.c.orig	2011-01-02 14:30:29.000000000 +1100
+++ src/gif2swf.c	2012-08-22 17:04:57.000000000 +1000
@@ -236,7 +236,11 @@ TAG *MovieAddFrame(SWF * swf, TAG * t, c
     }
 
     if (DGifSlurp(gft) != GIF_OK) {
-        PrintGifError();
+        char *Err = GifErrorString();
+        if (Err != NULL) 
+            fprintf(stderr, "\nGIF-LIB error: %s.\n", Err);
+        else
+            fprintf(stderr, "\nGIF-LIB undefined error %d.\n", GifError());
         return t;
     }
 
@@ -499,7 +503,11 @@ int CheckInputFile(char *fname, char **r
         global.max_image_height = gft->SHeight;
 
     if (DGifSlurp(gft) != GIF_OK) { 
-        PrintGifError();
+        char *Err = GifErrorString();
+        if (Err != NULL) 
+            fprintf(stderr, "\nGIF-LIB error: %s.\n", Err);
+        else
+            fprintf(stderr, "\nGIF-LIB undefined error %d.\n", GifError());
         return -1;
     }
     // After DGifSlurp() call, gft->ImageCount become available