Add MODULE_BUILD_FROM_SOURCE env variable.

When set, module builds will prefer source where applicable.

Bug: 191978129
Test: m; MODULE_BUILD_FROM_SOURCE=true m
Change-Id: Ie7f928674a511a98f17653fa814a42194ee0e9f9

parent 44d1de7b

core/android_soong_config_vars.mk

+4 −0

Original line number	Diff line number	Diff line
		@@ -62,3 +62,7 @@ endif
		ifdef APEX_BUILD_FOR_PRE_S_DEVICES
		$(call add_soong_config_var_value,ANDROID,library_linking_strategy,prefer_static)
		endif

		ifdef MODULE_BUILD_FROM_SOURCE
		$(call add_soong_config_var_value,ANDROID,module_build_from_source,true)
		endif