Allow projects to exclude from libcrt_builtins

Some projects can't be built with libcrt_builtins yet.

Bug: 29275768
Test: m checkbuild
Change-Id: I52805f5dece6395024683d07809c4b8905dab631
Merged-In: I52805f5dece6395024683d07809c4b8905dab631
(cherry picked from commit 2a401bea9e4a0f4d5f5978e244feec2a7b125ddf)
3 files changed
tree: d6f5f93cd752e84c126da62fced6fb82a3e16bdb
  1. common/
  2. core/
  3. packaging/
  4. target/
  5. tests/
  6. tools/
  7. .gitignore
  8. Android.mk
  9. buildspec.mk.default
  10. Changes.md
  11. CleanSpec.mk
  12. envsetup.sh
  13. help.sh
  14. navbar.md
  15. OWNERS
  16. README.md
  17. tapasHelp.sh
  18. Usage.txt
README.md

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For an outdated reference on Android.mk files, see build-system.html.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.