tree 16978ae4ff3bd8f5fe0e5f66c8d5e8617f00b4bb
parent 174978cc5834844517fc58f396561f2b24f3a169
author Dan Willemsen <dwillemsen@google.com> 1452669628 -0800
committer Dan Willemsen <dwillemsen@google.com> 1463085415 -0700

Publish Soong configuration to Make variables

For configuration like TARGET_GLOBAL_CFLAGS, it would be good to have
Make and Soong use the same values. This change adds an interface for
packages like cc to verify the current value of make variables match the
Soong equivalents, and once they're satisfied with the results, remove
the make definition and use the value from Soong.

The cc implementation exports a few variables currently that I expect to
match between both implementations in all cases. It also checks
{CLANG,}{HOST,TARGET}_GLOBAL_{C,LD}FLAGS, which should be mostly similar
between make and soong now.

Bug: 23566674
Change-Id: Idc8582ef31ace11a8baefcf525c3683f08a573aa