tree 63daa2ddb1436287b5e21f353742fdb9f62e7da2
parent e25fd79337b5a4ed73d3f3ac7dfd8bb63a698570
author Colin Cross <ccross@android.com> 1469042577 -0700
committer Colin Cross <ccross@android.com> 1469081369 -0700

Split -isystem headers into separate variables

Split the variables that contain header directories into ones that
should be prefixed with -isystem and ones that should be prefixed with
-I in preparation for moving some headers from -isystem to -I.

Add $(wildcard) around SRC_HEADERS to match the soong behavior, and move
users of SRC_HEADERS from config.mk to binary.mk so that the exported
soong value is present.

Test: no changes to build.ninja compile rules
Change-Id: Iadecbbf4351a01e53cb57e721d31f4f836bb82d9