Error on external includes
To make the build hermetic, all include files should be located within
the source tree (or generated as output).
There was an Android.mk that was adding /usr/include to its include
path.
Change-Id: I4c40b908314239c8239c7835d592e409248a3150
diff --git a/core/binary.mk b/core/binary.mk
index 614b8aa..2bf1850 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -1228,6 +1228,11 @@
my_c_includes += $(JNI_H_INCLUDE)
endif
+my_outside_includes := $(filter-out $(OUT_DIR)/%,$(filter /%,$(my_c_includes)))
+ifneq ($(my_outside_includes),)
+$(error $(LOCAL_MODULE_MAKEFILE): $(LOCAL_MODULE): C_INCLUDES must be under the source or output directories: $(my_outside_includes))
+endif
+
# all_objects includes gen_o_objects which were part of LOCAL_GENERATED_SOURCES;
# use normal_objects here to avoid creating circular dependencies. This assumes
# that custom build rules which generate .o files don't consume other generated