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# Copyright 2015 Google Inc. All rights reserved
#
# 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.
# Find source file location from path to this Makefile
MAKEPARALLEL_SRC_PATH := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
ifndef MAKEPARALLEL_SRC_PATH
MAKEPARALLEL_SRC_PATH := .
endif
# Set defaults if they weren't set by the including Makefile
MAKEPARALLEL_CXX ?= $(CXX)
MAKEPARALLEL_LD ?= $(CXX)
MAKEPARALLEL_INTERMEDIATES_PATH ?= .
MAKEPARALLEL_BIN_PATH ?= .
MAKEPARALLEL_CXX_SRCS := \
makeparallel.cpp
MAKEPARALLEL_CXXFLAGS := -Wall -Werror -MMD -MP
MAKEPARALLEL_CXX_SRCS := $(addprefix $(MAKEPARALLEL_SRC_PATH)/,\
$(MAKEPARALLEL_CXX_SRCS))
MAKEPARALLEL_CXX_OBJS := $(patsubst $(MAKEPARALLEL_SRC_PATH)/%.cpp,$(MAKEPARALLEL_INTERMEDIATES_PATH)/%.o,$(MAKEPARALLEL_CXX_SRCS))
MAKEPARALLEL := $(MAKEPARALLEL_BIN_PATH)/makeparallel
ifeq ($(shell uname),Linux)
MAKEPARALLEL_LIBS := -lrt -lpthread
endif
# Rule to build makeparallel into MAKEPARALLEL_BIN_PATH
$(MAKEPARALLEL): $(MAKEPARALLEL_CXX_OBJS)
@mkdir -p $(dir $@)
$(MAKEPARALLEL_LD) -std=c++11 $(MAKEPARALLEL_CXXFLAGS) -o $@ $^ $(MAKEPARALLEL_LIBS)
# Rule to build source files into object files in MAKEPARALLEL_INTERMEDIATES_PATH
$(MAKEPARALLEL_CXX_OBJS): $(MAKEPARALLEL_INTERMEDIATES_PATH)/%.o: $(MAKEPARALLEL_SRC_PATH)/%.cpp
@mkdir -p $(dir $@)
$(MAKEPARALLEL_CXX) -c -std=c++11 $(MAKEPARALLEL_CXXFLAGS) -o $@ $<
makeparallel_clean:
rm -rf $(MAKEPARALLEL)
rm -rf $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.o
rm -rf $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.d
.PHONY: makeparallel_clean
-include $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.d
.PHONY: makeparallel_test
MAKEPARALLEL_TEST := MAKEFLAGS= MAKELEVEL= MAKEPARALLEL=$(MAKEPARALLEL) $(MAKE) -f Makefile.test test
MAKEPARALLEL_NINJA_TEST := MAKEFLAGS= MAKELEVEL= MAKEPARALLEL="$(MAKEPARALLEL) --ninja" $(MAKE) -f Makefile.test test
makeparallel_test: $(MAKEPARALLEL)
@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -j1234
@EXPECTED="-j123" $(MAKEPARALLEL_TEST) -j123
@EXPECTED="" $(MAKEPARALLEL_TEST) -j1
@EXPECTED="-j$$(($$(nproc) + 2))" $(MAKEPARALLEL_TEST) -j
@EXPECTED="" $(MAKEPARALLEL_TEST)
@EXPECTED="-j1234" $(MAKEPARALLEL_NINJA_TEST) -j1234
@EXPECTED="-j123" $(MAKEPARALLEL_NINJA_TEST) -j123
@EXPECTED="-j1" $(MAKEPARALLEL_NINJA_TEST) -j1
@EXPECTED="-j1" $(MAKEPARALLEL_NINJA_TEST)
@EXPECTED="" $(MAKEPARALLEL_NINJA_TEST) -j
@EXPECTED="" $(MAKEPARALLEL_NINJA_TEST) -j -l
@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) --no-print-directory -j1234
@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) --no-print-directory -k -j1234
@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -k -j1234
@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -j1234 -k
@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -kt -j1234
@EXPECTED="-j1234" $(MAKEPARALLEL_NINJA_TEST) --no-print-directory -j1234
@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) --no-print-directory -k -j1234
@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -k -j1234
@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -j1234 -k
@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -kt -j1234
@EXPECTED="" $(MAKEPARALLEL_TEST) A=-j1234
@EXPECTED="-j1234 args" ARGS="args" $(MAKEPARALLEL_TEST) -j1234
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