Loading
pm.dexopt.* props in runtime_libart.mk becomes optional
The mk file is designed to provide safe default values which can be overridden by target-specific mk files. Previously it was difficult to correctly configure the mk files because the final prop value that is baked in the system/build.prop is highly dependent (and sensitive as well) to the mk file inheritance order which is very difficult (and non-intuitive) to follow. I9c073a21c8257987cf2378012cadaeeeb698a4fb is an attempt to make it much easier and intuitive. Specifically, the new `a ?= b` syntax makes the assignment optional, which means it is used only when there is no non-optional assignment for the same prop regardless of the relative ordering among them. In addition, the change prohibits having multiple non-optional prop assignments for the same prop name. pm.dex.* prop in runtime_libart.mk are now set using the `a ?= b` syntax to explicitly mark that they provide default values. Bug: 117892318 Bug: 158735147 Test: m Change-Id: I044486d313d699607cd54222ae34d9eae24762b9