Question

我正在设计一个可以在我的其他C ++项目中链接的库集合。为了使集合易于使用，我希望能够链接到单个库，或链接到包含所有其他库的一个主库。如何在CMakeLists.txt文件中指定此内容？

例如：

add_library(library1 SHARED
    file1.cpp
    file2.cpp
)

add_library(library2 SHARED
    file3.cpp
    file4.cpp
)

# Define a master library that contains both of the others
add_library(master_library SHARED
    library1
    library2
)

是否有正确的方法可以通过CMake获得此功能？

编辑：

此问题与CMake: Is it possible to build an executable from only static libraries and no source?

不重复

这仅与共享库有关，与静态库或可执行文件无关。

Answer 1

这个解决方案似乎有效。

add_library(library1 SHARED
    file1.cpp
    file2.cpp
)

add_library(library2 SHARED
    file3.cpp
    file4.cpp
)

# dummy file is required to avoid a cmake error, but this
# "dummy" file serves no other purpose and is empty.
add_library(master_library SHARED
    dummy.cpp
)

# Link the master library with the other libraries
target_link_libraries(master_library
    library1
    library2
)

执行此操作后，我只能使用主库编译和链接代码。

Answer 2

只需在项目中创建一个功能：

function(link_all_libs TARGET)
    target_link_libraries(TARGET library1 library2)
endfunction(link_all_libs)

现在你可以简单地说：

link_all_libs(myapp)

CMake add_library包含其他库

编辑：

2 个答案: