Android: Fix swrast only build

A build of only swrast is broken as the Android EGL now depends on
libdrm as does GBM. While we could make EGL conditionally depend on
libdrm, we probably want to enable kms_dri winsys as well and that will
need libdrm enabled. So just always enable libdrm and simplify the
Android makefiles a bit.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Chih-Wei Huang <cwhuang@linux.org.tw>
[Emil Velikov: drop related inline comment]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

Android.common.mk

@@ -102,12 +102,9 @@ ifeq ($(MESA_ENABLE_LLVM),true)
 endif
 
 ifneq ($(LOCAL_IS_HOST_MODULE),true)
-# add libdrm if there are hardware drivers
-ifneq ($(filter-out swrast,$(MESA_GPU_DRIVERS)),)
 LOCAL_CFLAGS += -DHAVE_LIBDRM
 LOCAL_SHARED_LIBRARIES += libdrm
 endif
-endif
 
 LOCAL_CFLAGS_32 += -DDEFAULT_DRIVER_DIR=\"/system/lib/$(MESA_DRI_MODULE_REL_PATH)\"
 LOCAL_CFLAGS_64 += -DDEFAULT_DRIVER_DIR=\"/system/lib64/$(MESA_DRI_MODULE_REL_PATH)\"

src/gallium/auxiliary/pipe-loader/Android.mk

@@ -33,14 +33,13 @@ LOCAL_CFLAGS := \
 	-DDROP_PIPE_LOADER_MISC \
 	-DGALLIUM_STATIC_TARGETS
 
-LOCAL_SRC_FILES := $(COMMON_SOURCES)
+LOCAL_SRC_FILES := \
+	$(COMMON_SOURCES) \
+	$(DRM_SOURCES)
 
 LOCAL_MODULE := libmesa_pipe_loader
 
-ifneq ($(filter-out swrast,$(MESA_GPU_DRIVERS)),)
-LOCAL_SRC_FILES += $(DRM_SOURCES)
 LOCAL_STATIC_LIBRARIES := libmesa_loader
-endif
 
 include $(GALLIUM_COMMON_MK)
 include $(BUILD_STATIC_LIBRARY)

src/gallium/state_trackers/dri/Android.mk

@@ -27,7 +27,9 @@ include $(LOCAL_PATH)/Makefile.sources
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := $(common_SOURCES)
+LOCAL_SRC_FILES := \
+	$(common_SOURCES) \
+	$(dri2_SOURCES)
 
 LOCAL_C_INCLUDES := \
 	$(MESA_TOP)/src/mapi \
@@ -44,10 +46,6 @@ ifneq ($(filter swrast,$(MESA_GPU_DRIVERS)),)
 LOCAL_SRC_FILES += $(drisw_SOURCES)
 endif
 
-ifneq ($(filter-out swrast,$(MESA_GPU_DRIVERS)),)
-LOCAL_SRC_FILES += $(dri2_SOURCES)
-endif
-
 LOCAL_MODULE := libmesa_st_dri
 
 LOCAL_GENERATED_SOURCES := $(MESA_DRI_OPTIONS_H)