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c++ - 如何使用 cmake 制作仅头文件的库?

转载 作者:行者123 更新时间:2023-12-03 18:40:17 40 4
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如何在 cmake 中创建一个将所有 C++ 文件收集到一个标题中的项目?

我有这个项目结构。

/
project/
folder1/
file.cpp
file.hpp
folder2/
...etc
CMakeLists.txt
tests/
test.cpp
CMakeLists.txt
CMakeList.txt

根 cmakelists.txt
cmake_minimum_required (VERSION 3.8)

project ("CMakeProject"
LANGUAGES C CXX)

set(CMAKE_EXECUTABLE_SUFFIX ".exe")

include(GNUInstallDirs)

add_subdirectory ("project")


option(ENABLE_TESTING OFF)

if (ENABLE_TESTING)
enable_testing()
add_subdirectory("tests")
endif()

项目中的 CMakeLists.txt
cmake_minimum_required (VERSION 3.8)

file(GLOB projectSRC
"*/*.cpp"
"*/*.hpp"
"*.cpp"
"*.hpp"
)

add_library(project INTERFACE)

message(STATUS "CMake inatall directory: " ${CMAKE_INSTALL_INCLUDEDIR})
target_include_directories(project
INTERFACE
$<BUILD_INTERFACE:${PROJECT_INCLUDE_DIR}>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)

并测试 cmakelist.txt
cmake_minimum_required (VERSION 3.8)

# install Catch2 testing library
# (https://github.com/catchorg/Catch2/blob/master/docs/cmake-integration.md#installing-catch2-from-git-repository or use packet manager)
find_package(Catch2 REQUIRED)

file(GLOB testSRC
"*.cpp"
)

add_executable(tests ${testSRC})

target_link_libraries(tests
Catch2::Catch2
project)

include(CTest)
include(Catch)
catch_discover_tests(tests)

如何生成一个标题并使用它(在测试或其他项目中)或使这个库能够拥有模板?第一个更好。

最佳答案

How to make a header-only library with cmake?



像这样:
add_library(project INTERFACE)
target_include_directories(project INTERFACE .)

然后在使用库的目标中:
target_link_libraries(dependee
PUBLIC/INTERFACE/PRIVATE # pick one
project)

并包含这样的标题:
#include <project/folder1/file.hpp>

关于c++ - 如何使用 cmake 制作仅头文件的库?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60604249/

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