android: always set __STDC_*_MACROS for C++ sources

Various parts of the code depend on the macros being defined.

Just set those unconditionally, only where needed (c++ sources) so that
we can drop the workarounds through the code.

Cc: Rob Herring <robh@kernel.org>
Cc: Chih-Wei Huang <cwhuang@android-x86.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
diff --git a/Android.common.mk b/Android.common.mk
index 30166a6..4fa02ae 100644
--- a/Android.common.mk
+++ b/Android.common.mk
@@ -44,7 +44,6 @@
 
 LOCAL_CFLAGS += \
 	-DENABLE_SHADER_CACHE \
-	-D__STDC_LIMIT_MACROS \
 	-DHAVE___BUILTIN_EXPECT \
 	-DHAVE___BUILTIN_FFS \
 	-DHAVE___BUILTIN_FFSLL \
@@ -64,6 +63,11 @@
 	-fvisibility=hidden \
 	-Wno-sign-compare
 
+LOCAL_CPPFLAGS += \
+	-D__STDC_CONSTANT_MACROS \
+	-D__STDC_FORMAT_MACROS \
+	-D__STDC_LIMIT_MACROS
+
 # mesa requires at least c99 compiler
 LOCAL_CONLYFLAGS += \
 	-std=c99
@@ -78,10 +82,7 @@
 
 ifeq ($(MESA_ENABLE_LLVM),true)
 LOCAL_CFLAGS += \
-	-DHAVE_LLVM=0x0305 -DMESA_LLVM_VERSION_PATCH=2 \
-	-D__STDC_CONSTANT_MACROS \
-	-D__STDC_FORMAT_MACROS \
-	-D__STDC_LIMIT_MACROS
+	-DHAVE_LLVM=0x0305 -DMESA_LLVM_VERSION_PATCH=2
 endif
 
 ifneq ($(LOCAL_IS_HOST_MODULE),true)