giflib 5.0+

--- gutils/gimagereadgif.c.orig	Thu Aug  2 16:09:09 2012
+++ gutils/gimagereadgif.c	Sat Mar 28 17:55:56 2015
@@ -132,13 +132,13 @@ GImage *GImageReadGif(char *filename) {
 	if ( !loadgif())
 return( NULL );
 
-    if ((gif = _DGifOpenFileName(filename)) == NULL) {
+    if ((gif = _DGifOpenFileName(filename, NULL)) == NULL) {
 	fprintf( stderr, "can't open %s\n", filename);
 return( NULL );
     }
 
     if ( _DGifSlurp(gif)==GIF_ERROR ) {
-	_DGifCloseFile(gif);
+	_DGifCloseFile(gif, NULL);
 	fprintf( stderr, "Bad gif file %s\n", filename );
 return( NULL );
     }
@@ -150,7 +150,7 @@ return( NULL );
 	ret = images[0];
     else
 	ret = GImageCreateAnimation(images,gif->ImageCount);
-    _DGifCloseFile(gif);
+    _DGifCloseFile(gif, NULL);
     free(images);
 return( ret );
 }
@@ -220,13 +220,13 @@ GImage *GImageReadGif(char *filename) {
     GifFileType *gif;
     int i;
 
-    if ((gif = DGifOpenFileName(filename)) == NULL) {
+    if ((gif = DGifOpenFileName(filename, NULL)) == NULL) {
 	fprintf( stderr, "can't open %s\n", filename);
 return( NULL );
     }
 
     if ( DGifSlurp(gif)==GIF_ERROR ) {
-	DGifCloseFile(gif);
+	DGifCloseFile(gif, NULL);
 	fprintf(stderr,"Bad gif file %s\n", filename );
 return( NULL );
     }
@@ -238,7 +238,7 @@ return( NULL );
 	ret = images[0];
     else
 	ret = GImageCreateAnimation(images,gif->ImageCount);
-    DGifCloseFile(gif);
+    DGifCloseFile(gif, NULL);
     free(images);
 return( ret );
 }