Makefile文件  |  44行  |  1.54 KB

##
##
## Copyright 2009, 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.
##

LOCAL_PATH := $(call my-dir)

# Two ways to control which JS engine is used:
# 1. use JS_ENGINE environment variable, value can be either 'jsc' or 'v8'
#    This is the preferred way.
# 2. if JS_ENGINE is not set, or is not 'jsc' or 'v8', this makefile picks
#    up a default engine to build.
#    To help setup buildbot, a new environment variable, USE_ALT_JS_ENGINE,
#    can be set to true, so that two builds can be different but without
#    specifying which JS engine to use.

# Check JS_ENGINE environment variable
ifeq ($(JS_ENGINE),jsc)
  include $(LOCAL_PATH)/Android.jsc.mk
else
  ifeq ($(JS_ENGINE),v8)
    include $(LOCAL_PATH)/Android.v8.mk
  else
    # No JS engine is specified, pickup the one we want as default.
    ifeq ($(USE_ALT_JS_ENGINE),true)
      include $(LOCAL_PATH)/Android.v8.mk
    else
      include $(LOCAL_PATH)/Android.jsc.mk
    endif  # USE_ALT_JS_ENGINE == true
  endif  # JS_ENGINE == v8
endif # JS_ENGINE == jsc