[FFmpeg-cvslog] Fix xcbgrab build if shm is not available.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Thu Oct 30 10:05:45 2014 +0100| [8c0ae9015a2bd8b3f4f92c35570e592e7fdeaef0] | committer: Carl Eugen Hoyos

Fix xcbgrab build if shm is not available.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8c0ae9015a2bd8b3f4f92c35570e592e7fdeaef0
---

 libavdevice/xcbgrab.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavdevice/xcbgrab.c b/libavdevice/xcbgrab.c
index 4909588..c378002 100644
--- a/libavdevice/xcbgrab.c
+++ b/libavdevice/xcbgrab.c
@@ -47,7 +47,9 @@ typedef struct XCBGrabContext {
     xcb_connection_t *conn;
     xcb_screen_t *screen;
     xcb_window_t window;
+#if CONFIG_LIBXCB_SHM
     xcb_shm_seg_t segment;
+#endif
 
     int64_t time_frame;
     AVRational time_base;
@@ -611,7 +613,9 @@ static av_cold int xcbgrab_read_header(AVFormatContext *s)
         return AVERROR(EIO);
     }
 
+#if CONFIG_LIBXCB_SHM
     c->segment = xcb_generate_id(c->conn);
+#endif
 
     ret = create_stream(s);