gbm: Add Android build support

In order to use libgbm for gralloc, add it to the Android build.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

Android.mk

@@ -88,6 +88,7 @@ MESA_ENABLE_LLVM := $(if $(filter radeonsi,$(MESA_GPU_DRIVERS)),true,false)
 ifneq ($(strip $(MESA_GPU_DRIVERS)),)
 
 SUBDIRS := \
+	src/gbm \
 	src/loader \
 	src/mapi \
 	src/compiler \

src/gbm/Android.mk

+#
+# Copyright (C) 2016 Linaro, Ltd., Rob Herring <robh@kernel.org>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+include $(LOCAL_PATH)/Makefile.sources
+
+include $(CLEAR_VARS)
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := \
+	$(LOCAL_PATH)/main
+
+LOCAL_C_INCLUDES := \
+	$(LOCAL_PATH)/main
+
+LOCAL_SHARED_LIBRARIES := libdrm
+LOCAL_STATIC_LIBRARIES := libmesa_loader
+LOCAL_MODULE := libgbm
+
+LOCAL_SRC_FILES := \
+	$(gbm_core_FILES) \
+	$(gbm_dri_FILES)
+
+include $(MESA_COMMON_MK)
+include $(BUILD_SHARED_LIBRARY)