| # |
| # Copyright (C) 2018 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| # Only use ANDROID_BUILD_SHELL to wrap around bash. |
| # DO NOT use other shells such as zsh. |
| ifdef ANDROID_BUILD_SHELL |
| SHELL := $(ANDROID_BUILD_SHELL) |
| else |
| # Use bash, not whatever shell somebody has installed as /bin/sh |
| # This is repeated from main.mk, since envsetup.sh runs this file |
| # directly. |
| SHELL := /bin/bash |
| endif |
| |
| # Utility variables. |
| empty := |
| space := $(empty) $(empty) |
| comma := , |
| # Note that make will eat the newline just before endef. |
| define newline |
| |
| |
| endef |
| # The pound character "#" |
| define pound |
| # |
| endef |
| # Unfortunately you can't simply define backslash as \ or \\. |
| backslash := \a |
| backslash := $(patsubst %a,%,$(backslash)) |
| |
| # Prevent accidentally changing these variables |
| .KATI_READONLY := SHELL empty space comma newline pound backslash |
| |
| # Basic warning/error wrappers. These will be redefined to include the local |
| # module information when reading Android.mk files. |
| define pretty-warning |
| $(warning $(1)) |
| endef |
| |
| define pretty-error |
| $(error $(1)) |
| endef |
