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finish hw11 #3

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22 changes: 15 additions & 7 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,26 +1,34 @@
# 为什么不指定 cmake_minimum_required 会导致下面在 project 处出错？
#cmake_minimum_required(VERSION 3.10)
# 不指定cmake_minimum_required=3时CMP0048为old，VERSION不允许在project中被指定
cmake_minimum_required(VERSION 3.15)

project(hellocmake VERSION 3.1.4 LANGUAGES CXX)
project(hellocmake VERSION 3.1.4 LANGUAGES C CXX)

# 如何让构建类型默认为 Release？
#set(CMAKE_BUILD_TYPE Release)
if (NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif()

# 这样设置 C++14 的方式对吗？请改正
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-std=c++14")
# set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-std=c++14")
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# （可选）使用 ccache 加速编译
find_program(CCACHE_PROGRAM ccache)
# find_program(CCACHE_PROGRAM ccache)

# legacy/CMakeLists.txt 和 mylib/CMakeLists.txt 里还有问题哦！
add_subdirectory(legacy)
add_subdirectory(mylib)

# 这样需要一个个写出所有文件很麻烦，请改成自动批量添加源文件
set(main_sources "src/main.cpp" "src/other.cpp" "src/dummy.cpp" "src/veryusefulfile.cpp")
# set(main_sources "src/main.cpp" "src/other.cpp" "src/dummy.cpp" "src/veryusefulfile.cpp")
file(GLOB main_sources src/*.cpp)
add_executable(main ${main_sources})

target_link_libraries(main PUBLIC mylib)
# 请改为项目的正确版本（用变量来获取）
target_compile_definitions(main PRIVATE HELLOCMAKE_VERSION="233.33.33")
# target_compile_definitions(main PRIVATE HELLOCMAKE_VERSION="233.33.33")
target_compile_definitions(main PRIVATE HELLOCMAKE_VERSION="${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")

# （可选）添加 run 作为伪目标方便命令行调用
6 changes: 4 additions & 2 deletions mylib/CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,9 +1,11 @@
# 请改用自动批量查找所有 .cpp 和 .h 文件：
set(mylib_sources "mylib/mylib.cpp" "mylib/mylib.h")
# set(mylib_sources "mylib/mylib.cpp" "mylib/mylib.h")
file(GLOB mylib_sources mylib/*.cpp mylib/*.h)

# 使用 SHARED 在 Windows 上会遇到什么困难？请尝试修复!
# 用的 WSL
add_library(mylib SHARED ${mylib_sources})
target_compile_definitions(mylib PRIVATE MYLIB_EXPORT)

# 这里应该用 PRIVATE 还是 PUBLIC？
target_include_directories(mylib PRIVATE .)
target_include_directories(mylib PUBLIC .)