patch to compile mapserver 6.2.1 with giflib 5.x

mapserver-giflib5.patch

--- mapserver-6.2.1.orig/mapimageio.c	2013-04-19 21:08:49.000000000 -0700
+++ mapserver-6.2.1/mapimageio.c	2015-01-30 16:47:46.000000000 -0800
@@ -994,11 +994,18 @@
   }
 }
 #ifdef USE_GIF
+#if defined(GIFLIB_MAJOR) && GIFLIB_MAJOR >= 5
+#define gif_error_msg() _gif_error_msg(image->Error)
+static char const *_gif_error_msg(int code)
+#else
 static char const *gif_error_msg()
+#endif
 {
   static char msg[80];

+#if !(defined(GIFLIB_MAJOR) && GIFLIB_MAJOR >= 5)
   int code = GifLastError();
+#endif
   switch (code) {
     case E_GIF_ERR_OPEN_FAILED: /* should not see this */
       return "Failed to open given file";
@@ -1075,7 +1082,6 @@
   }
 }

-
 /* not fully implemented and tested */
 /* missing: set the first pointer to a,r,g,b */
 int readGIF(char *path, rasterBufferObj *rb)
@@ -1092,12 +1098,21 @@
   int interlacedJumps[] = {8,8,4,2};


-  rb->type = MS_BUFFER_BYTE_RGBA;
+#if defined(GIFLIB_MAJOR) && GIFLIB_MAJOR >= 5
+  int err = 0;
+  image =  DGifOpenFileName(path, &err);
+  if (image == NULL) {
+    msSetError(MS_MISCERR,"failed to load gif image: %s","readGIF()", _gif_error_msg(err));
+    return MS_FAILURE;
+  }
+#else
   image =  DGifOpenFileName(path);
   if (image == NULL) {
     msSetError(MS_MISCERR,"failed to load gif image: %s","readGIF()", gif_error_msg());
     return MS_FAILURE;
   }
+#endif
+  rb->type = MS_BUFFER_BYTE_RGBA;
   rb->width = image->SWidth;
   rb->height = image->SHeight;
   rb->data.rgba.row_step = rb->width * 4;
@@ -1253,11 +1268,17 @@

   } while (recordType != TERMINATE_RECORD_TYPE);

+#if defined(GIFLIB_MAJOR) && GIFLIB_MAJOR >= 5 && GIFLIB_MINOR >= 1
+  if (DGifCloseFile(image, &err) == GIF_ERROR) {
+    msSetError(MS_MISCERR,"failed to close gif after loading: %s","readGIF()", _gif_error_msg(err));
+    return MS_FAILURE;
+  }
+#else
   if (DGifCloseFile(image) == GIF_ERROR) {
     msSetError(MS_MISCERR,"failed to close gif after loading: %s","readGIF()", gif_error_msg());
     return MS_FAILURE;
   }
-
+#endif
   return MS_SUCCESS;
 }
 #endif