Bug: http://b/30421084
Change-Id: I8b65669ef9f60f85202295de117d3806d3a5b1f6
Test: Tested build, boot and common usage for several devices in AOSP
and internal branch.
and export the library name to make. Refactor the code a bit to avoid repeating the library name
multiple times.
Bug: 22033465
Test: Ran external/clang/build.py for aosp-llvm
Change-Id: I25eb3858eb92e1dd493b09524d559802551b2547