Build system support to export include paths
Bug: 5573756
With this change, we can set LOCAL_EXPORT_C_INCLUDE_DIRS in the module
definition to export include dir paths.
Paths in LOCAL_EXPORT_C_INCLUDE_DIRS should be relative to the top dir
of the source tree.
If a library (shared or static) exports some include paths, any module
using it will import the include paths and add them to the compiler
command line.
Change-Id: I49aabc589d2cf214044d13ccd5532ef68209adf0
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index d9f3372..fabdc57 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -44,6 +44,7 @@
LOCAL_CPPFLAGS:=
LOCAL_RTTI_FLAG:=
LOCAL_C_INCLUDES:=
+LOCAL_EXPORT_C_INCLUDE_DIRS:=
LOCAL_LDFLAGS:=
LOCAL_LDLIBS:=
LOCAL_AAPT_FLAGS:=