[PATCH xserver] modesetting: Fix build without glamor

[Olivier Fourdan]

Build would abort if configure without glamor:

| present.c: error: implicit declaration of function
|  ‘ms_flush_drm_events’ [-Werror=implicit-function-declaration]
|         if (errno != EBUSY || ms_flush_drm_events(screen) < 0) {

ms_flush_drm_events() is avaialble only with glamor, so avoid the
compilation error by putting th code that use it within an

Signed-off-by: Olivier Fourdan <ofourdan at redhat.com>
---
 hw/xfree86/drivers/modesetting/present.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hw/xfree86/drivers/modesetting/present.c b/hw/xfree86/drivers/modesetting/present.c
index 55b622c..ed2b813 100644
--- a/hw/xfree86/drivers/modesetting/present.c
+++ b/hw/xfree86/drivers/modesetting/present.c
@@ -71,6 +71,7 @@ ms_present_get_ust_msc(RRCrtcPtr crtc, CARD64 *ust, CARD64 *msc)
     return ms_get_crtc_ust_msc(xf86_crtc, ust, msc);
 }
 
+#ifdef GLAMOR
 /*
  * Called when the queued vblank event has occurred
  */
@@ -98,7 +99,7 @@ ms_present_vblank_abort(void *data)
 
     free(event);
 }
-
+#endif
 /*
  * Queue an event to report back to the Present extension when the specified
  * MSC has past
@@ -108,6 +109,7 @@ ms_present_queue_vblank(RRCrtcPtr crtc,
                         uint64_t event_id,
                         uint64_t msc)
 {
+#ifdef GLAMOR
     xf86CrtcPtr xf86_crtc = crtc->devPrivate;
     ScreenPtr screen = crtc->pScreen;
     ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
@@ -149,6 +151,7 @@ ms_present_queue_vblank(RRCrtcPtr crtc,
     DebugPresent(("\t\tmq %lld seq %u msc %llu (hw msc %u)\n",
                  (long long) event_id, seq, (long long) msc,
                  vbl.request.sequence));
+#endif
     return Success;
 }
 
-- 
2.9.3