Support newer GIFLIB versions - Part 2

Adding another patch to fix the problem with new versions of libgif.
This patch has been sent upstream:

  https://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2015-February/072848.html

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>

Support newer GIFLIB versions - Part 2

This patch is necessary because the previous upstream patch is
incomplete. Without this one, MPlayer will fail to compile displaying
an error message like this one:

libvo/vo_gif89a.c: In function 'uninit':
libvo/vo_gif89a.c:374:3: error: too few arguments to function 'EGifCloseFile'
   EGifCloseFile(new_gif); // also frees gif storage space.

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
---

diff -rup a/libmpdemux/demux_gif.c b/libmpdemux/demux_gif.c
--- a/libmpdemux/demux_gif.c	2015-02-13 15:39:56.582310414 +0000
+++ b/libmpdemux/demux_gif.c	2015-02-13 15:48:06.396837922 +0000
@@ -48,6 +48,7 @@ typedef struct {
 #if defined GIFLIB_MAJOR && GIFLIB_MAJOR >= 5
 #define DGifOpen(a, b) DGifOpen(a, b, NULL)
 #define DGifOpenFileHandle(a) DGifOpenFileHandle(a, NULL)
+#define DGifCloseFile(a) DGifCloseFile(a, NULL)
 #define GifError() (gif ? gif->Error : 0)
 #define GifErrorString() GifErrorString(gif->Error)
 #endif
diff -rup a/libvo/vo_gif89a.c b/libvo/vo_gif89a.c
--- a/libvo/vo_gif89a.c	2015-02-13 15:39:56.631311186 +0000
+++ b/libvo/vo_gif89a.c	2015-02-13 15:45:25.392168294 +0000
@@ -71,6 +71,7 @@ const LIBVO_EXTERN(gif89a)
 
 #if defined GIFLIB_MAJOR && GIFLIB_MAJOR >= 5
 #define EGifOpenFileName(a, b) EGifOpenFileName(a, b, NULL)
+#define EGifCloseFile(a) EGifCloseFile(a, NULL)
 #define MakeMapObject GifMakeMapObject
 #define FreeMapObject GifFreeMapObject
 #define QuantizeBuffer GifQuantizeBuffer