CMake：如何在CMakeLists.txt中设置LDFLAGS？ [英] CMake: How to set the LDFLAGS in CMakeLists.txt?

问题描述

我通过CMAKE_C_FLAGS在CMake中设置了CFLAGS。
这样是否可以设置LDFLAGS？

I set the CFLAGS in CMake by CMAKE_C_FLAGS. Is something like this to set LDFLAGS?

推荐答案

这取决于你想要什么：

A）如果要指定要链接到哪些库，可以使用 find_library 查找库，然后使用 link_directories 和 target_link_libraries 。

A) If you want to specify which libraries to link to, you can use find_library to find libs and then use link_directories and target_link_libraries to.

当然，通常值得努力写一个好的 find_package 脚本，它通过 add_library（YourLib IMPORTED）正确的位置，以及平台/构建特定的前缀和后缀。您可以简单地参考YourLib并使用target_link_libraries。

Of course, it is often worth the effort to write a good find_package script, which nicely adds "imported" libraries with add_library( YourLib IMPORTED ) with correct locations, and platform/build specific pre- and suffixes. You can then simply refer to 'YourLib' and use target_link_libraries.

B）如果您想指定特定的链接器标记， '-mthreads'或'-Wl， - export-all-symbols'与MinGW-GCC，您可以使用 CMAKE_EXE_LINKER_FLAGS 。对于模块，共享或静态库，还有两个相似但未记录的标志：

B) If you wish to specify particular linker-flags, e.g. '-mthreads' or '-Wl,--export-all-symbols' with MinGW-GCC, you can use CMAKE_EXE_LINKER_FLAGS. There are also two similar but undocumented flags for modules, shared or static libraries:

CMAKE_MODULE_LINKER_FLAGS
CMAKE_SHARED_LINKER_FLAGS
CMAKE_STATIC_LINKER_FLAGS

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