c3d7fff348
This is needed for merged mixed-release builds where the vendor half on release N contains VNDK current (vN) on /vendor. This change prevents the system half on release N+k from placing another copy of VNDK vN on /system_ext. Test: Build and merge crosshatch with S system and R vendor, boot Bug: 176993126 Change-Id: I5322931244e060b2e7c92d9578e5eb64b098d1d6
Android Make Build System
This is the Makefile-based portion of the Android Build System.
For documentation on how to run a build, see Usage.txt
For a list of behavioral changes useful for Android.mk writers see Changes.md
For an outdated reference on Android.mk files, see build-system.html. Our Android.mk files look similar, but are entirely different from the Android.mk files used by the NDK build system. When searching for documentation elsewhere, ensure that it is for the platform build system -- most are not.
This Makefile-based system is in the process of being replaced with Soong, a new build system written in Go. During the transition, all of these makefiles are read by Kati, and generate a ninja file instead of being executed directly. That's combined with a ninja file read by Soong so that the build graph of the two systems can be combined and run as one.