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Dan Willemsen 13cb165b91 Stop removing valid copy headers
My change to clean up obsolete copy headers would remove valid ones if
thhe LOCAL_COPY_HEADERS_TO path wasn't cleaned. I'm seeing this most
with values that just end in '/', so we end up with a '//' in the path,
which isn't textually equivalent, and we remove it.

Test: No longer seeing constant removals on internal products
Test: Set LOCAL_COPY_HEADERS_TO := ..
Test: Set LOCAL_COPY_HEADERS_TO := ../foo
Test: Set LOCAL_COPY_HEADERS_TO := /foo
Change-Id: Idbeeb207a2bb2a8da766473dbded877cec7c9cc1
2019-12-26 16:52:34 -08:00
common Move TOP/TOPDIR to build/make/common/core.mk 2019-08-08 10:58:09 -07:00
core Stop removing valid copy headers 2019-12-26 16:52:34 -08:00
packaging Fix creating _dist_<goal> targets under !dist 2018-10-21 08:56:27 -07:00
target Merge "unbreak sdk_phone_x86 boot" 2019-12-26 15:51:49 +00:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-01 14:26:40 -07:00
tools Merge "Add /system/vendor/odm for VINTF search path" 2019-12-23 22:26:55 +00:00
.gitignore Add build subprojects to .gitignore 2015-07-23 13:18:47 -07:00
Changes.md Improve checks for include dirs outside the source tree 2019-12-05 13:11:04 -08:00
CleanSpec.mk Remove Soong intermdiates after moving image mutator 2019-12-17 14:53:49 -08:00
Deprecation.md Start the deprecation of BUILD_HOST_STATIC_LIBRARY 2019-06-14 09:37:42 -07:00
OWNERS Add more OWNERS 2019-06-17 15:22:33 -07:00
README.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
Usage.txt Remove the PRODUCT-* goal 2019-07-29 14:27:04 -07:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
envsetup.sh Merge "Update the docs for 'mm[m][a]'" 2019-11-01 06:42:14 +00:00
help.sh Rename product_services to system_ext 2019-07-09 08:57:19 +00:00
navbar.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
tapasHelp.sh Remove armv5te 2018-01-08 15:26:16 -08:00

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For an outdated reference on Android.mk files, see build-system.html.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