[PATCH xf86-video-ati] Fix build against xserver < 1.13

[michel@xxxxxxxxxxx (Michel Dänzer)]

From: Michel Dänzer <michel.daenzer@xxxxxxx>

pScreen->isGPU was only introduced in 1.13.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97490
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/drmmode_display.c | 5 ++++-
 src/radeon_kms.c      | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index e474046..2afeeb0 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -799,7 +799,10 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
 
 			drmmode_crtc_scanout_destroy(drmmode, &drmmode_crtc->scanout[0]);
 			drmmode_crtc_scanout_destroy(drmmode, &drmmode_crtc->scanout[1]);
-		} else if (!pScreen->isGPU &&
+		} else if (
+#ifdef RADEON_PIXMAP_SHARING
+			!pScreen->isGPU &&
+#endif
 			   (info->tear_free ||
 #if XF86_CRTC_VERSION >= 4
 			    crtc->driverIsPerformingTransform ||
diff --git a/src/radeon_kms.c b/src/radeon_kms.c
index c10fb42..51f320c 100644
--- a/src/radeon_kms.c
+++ b/src/radeon_kms.c
@@ -842,7 +842,10 @@ static void RADEONBlockHandler_KMS(BLOCKHANDLER_ARGS_DECL)
     (*pScreen->BlockHandler) (BLOCKHANDLER_ARGS);
     pScreen->BlockHandler = RADEONBlockHandler_KMS;
 
-    if (!pScreen->isGPU) {
+#ifdef RADEON_PIXMAP_SHARING
+    if (!pScreen->isGPU)
+#endif
+    {
 	for (c = 0; c < xf86_config->num_crtc; c++) {
 	    if (info->tear_free)
 		radeon_scanout_flip(pScreen, info, xf86_config->crtc[c]);
-- 
2.9.3