make目標

Question

在我的項目我有一個makefile，看起來像這樣：

CXX = clang++ 
CFLAGS = -std=c++11 
COMMON_SOURCES = file1.cpp file2.cpp 
TARGET_SOURCES = main.cpp 
TEST_SOURCES = run_tests.cpp test_file1.cpp test_file2.cpp 
COMMON_OBJECTS = $(COMMON_SOURCES:.c=.o) 
TARGET_OBJECTS = $(TARGET_SOURCES:.c=.o) 
TEST_OBJECTS = $(TEST_SOURCES:.c=.o) 
EXECUTABLE = build/application 
TEST_EXECUTABLE = build/tests 
.PHONY: all target tests 
all: target tests 
target: $(EXECUTABLE) 
tests: $(TEST_EXECUTABLE) 
clean: 
    rm build/tests & rm build/application & 
$(EXECUTABLE): $(COMMON_OBJECTS) $(TARGET_OBJECTS) 
    $(CXX) $(CFLAGS) $(LDFLAGS) $^ -o $@ 
$(TEST_EXECUTABLE): $(COMMON_OBJECTS) $(TEST_OBJECTS) 
    $(CXX) $(CFLAGS) $(LDFLAGS) $^ -o $@ 
.c.o: 
    $(CXX) $(CFLAGS) $< -o $@ 

這讓我跑make tests或make target，它會建立相應的可執行文件。

如何設置一個CMakeLists文件以獲得相同的方便構建系統？

Answer 1

除了使用鏗鏘聲++，我認爲如果你把下面的代碼放在CMakeLists.txt文件中，然後在構建目錄中運行你的cmake configure步驟（即mkdir build; cd build; cmake ..），你應該有你所要求的。

project(myproject) 

# I am not sure how you get cmake to use clang++ over g++ 
# CXX = clang++ 

add_definitions(-std=c++11) 
set(COMMON_SOURCES file1.cpp file2.cpp) 
set(TARGET_SOURCES main.cpp) 
set(TEST_SOURCES run_tests.cpp test_file1.cpp test_file2.cpp) 
add_executable(application ${COMMON_SOURCES} ${TARGET_SOURCES}) 
add_executable(tests ${COMMON_SOURCES} ${TEST_SOURCES}) 

Answer 2

每個add_custom_target()（和一些其他命令，如add_executable）實際上增加了目標在make sence。

add_custom_target(tests) # Note: without 'ALL' 
add_executable(test_executable ...) # Note: without 'ALL' 
add_dependencies(tests test_executable) 

所以，test_executable將是建立在make tests，但不是簡單的make情況。