libdrm: Android.mk: Add minimal Android platform check

Add a check to error out on Android version K(4.4) or
lower.

This is due to dependency added in a previous commit on mmap64,
which was introduced with Android L.

Cc: Sean Paul <seanpaul@chromium.org>
Cc: Alistair Strachan <astrachan@google.com>
Cc: Marissa Wall <marissaw@google.com>
Suggested-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>

diff --git a/Android.mk b/Android.mk
index 1b77c53..0ab6f0f 100644 (file)
--- a/Android.mk
+++ b/Android.mk
@@ -21,6 +21,11 @@
 # IN THE SOFTWARE.
 #
 
+LIBDRM_ANDROID_MAJOR_VERSION := $(word 1, $(subst ., , $(PLATFORM_VERSION)))
+ifneq ($(filter 2 4, $(LIBDRM_ANDROID_MAJOR_VERSION)),)
+$(error "Android 4.4 and earlier not supported")
+endif
+
 LIBDRM_COMMON_MK := $(call my-dir)/Android.common.mk
 
 LOCAL_PATH := $(call my-dir)