# Copyright 2015 Google Inc. All rights reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Find source file location from path to this Makefile
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MAKEPARALLEL_SRC_PATH := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
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ifndef MAKEPARALLEL_SRC_PATH
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MAKEPARALLEL_SRC_PATH := .
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endif
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# Set defaults if they weren't set by the including Makefile
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MAKEPARALLEL_CXX ?= $(CXX)
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MAKEPARALLEL_LD ?= $(CXX)
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MAKEPARALLEL_INTERMEDIATES_PATH ?= .
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MAKEPARALLEL_BIN_PATH ?= .
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MAKEPARALLEL_CXX_SRCS := \
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makeparallel.cpp
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MAKEPARALLEL_CXXFLAGS := -Wall -Werror -MMD -MP
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MAKEPARALLEL_CXX_SRCS := $(addprefix $(MAKEPARALLEL_SRC_PATH)/,\
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$(MAKEPARALLEL_CXX_SRCS))
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MAKEPARALLEL_CXX_OBJS := $(patsubst $(MAKEPARALLEL_SRC_PATH)/%.cpp,$(MAKEPARALLEL_INTERMEDIATES_PATH)/%.o,$(MAKEPARALLEL_CXX_SRCS))
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MAKEPARALLEL := $(MAKEPARALLEL_BIN_PATH)/makeparallel
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ifeq ($(shell uname),Linux)
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MAKEPARALLEL_LIBS := -lrt -lpthread
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endif
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# Rule to build makeparallel into MAKEPARALLEL_BIN_PATH
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$(MAKEPARALLEL): $(MAKEPARALLEL_CXX_OBJS)
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@mkdir -p $(dir $@)
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$(MAKEPARALLEL_LD) -std=c++11 $(MAKEPARALLEL_CXXFLAGS) -o $@ $^ $(MAKEPARALLEL_LIBS)
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# Rule to build source files into object files in MAKEPARALLEL_INTERMEDIATES_PATH
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$(MAKEPARALLEL_CXX_OBJS): $(MAKEPARALLEL_INTERMEDIATES_PATH)/%.o: $(MAKEPARALLEL_SRC_PATH)/%.cpp
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@mkdir -p $(dir $@)
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$(MAKEPARALLEL_CXX) -c -std=c++11 $(MAKEPARALLEL_CXXFLAGS) -o $@ $<
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makeparallel_clean:
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rm -rf $(MAKEPARALLEL)
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rm -rf $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.o
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rm -rf $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.d
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.PHONY: makeparallel_clean
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-include $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.d
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.PHONY: makeparallel_test
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MAKEPARALLEL_TEST := MAKEFLAGS= MAKELEVEL= MAKEPARALLEL=$(MAKEPARALLEL) $(MAKE) -f Makefile.test test
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MAKEPARALLEL_NINJA_TEST := MAKEFLAGS= MAKELEVEL= MAKEPARALLEL="$(MAKEPARALLEL) --ninja" $(MAKE) -f Makefile.test test
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makeparallel_test: $(MAKEPARALLEL)
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@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -j1234
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@EXPECTED="-j123" $(MAKEPARALLEL_TEST) -j123
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@EXPECTED="" $(MAKEPARALLEL_TEST) -j1
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@EXPECTED="-j$$(($$(nproc) + 2))" $(MAKEPARALLEL_TEST) -j
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@EXPECTED="" $(MAKEPARALLEL_TEST)
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@EXPECTED="-j1234" $(MAKEPARALLEL_NINJA_TEST) -j1234
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@EXPECTED="-j123" $(MAKEPARALLEL_NINJA_TEST) -j123
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@EXPECTED="-j1" $(MAKEPARALLEL_NINJA_TEST) -j1
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@EXPECTED="-j1" $(MAKEPARALLEL_NINJA_TEST)
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@EXPECTED="" $(MAKEPARALLEL_NINJA_TEST) -j
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@EXPECTED="" $(MAKEPARALLEL_NINJA_TEST) -j -l
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@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) --no-print-directory -j1234
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@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) --no-print-directory -k -j1234
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@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -k -j1234
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@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -j1234 -k
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@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -kt -j1234
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@EXPECTED="-j1234" $(MAKEPARALLEL_NINJA_TEST) --no-print-directory -j1234
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@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) --no-print-directory -k -j1234
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@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -k -j1234
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@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -j1234 -k
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@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -kt -j1234
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@EXPECTED="" $(MAKEPARALLEL_TEST) A=-j1234
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@EXPECTED="-j1234 args" ARGS="args" $(MAKEPARALLEL_TEST) -j1234
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