-lm
if HAVE_PLATFORM_ANDROID
-VULKAN_CPPFLAGS += $(ANDROID_CPPFLAGS)
+VULKAN_CPPFLAGS += \
+ $(ANDROID_CPPFLAGS) \
+ -DVK_USE_PLATFORM_ANDROID_KHR
+
VULKAN_CFLAGS += $(ANDROID_CFLAGS)
VULKAN_LIB_DEPS += $(ANDROID_LIBS)
VULKAN_SOURCES += $(VULKAN_ANDROID_FILES)