4d24cbd044
Using PLATFORM_VERSION_ALL_CODENAMES (which is a bad name for historical reasons) for discovering preview API levels doesn't work in the narrow window where the branch's development is not for the latest release. Create a second variable for preview codenames and expose it to soong. Bug: None Test: None Change-Id: I8c271c1d646ea8285553614c6bca944227a0e643
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For an outdated reference on Android.mk files, see build-system.html.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.