cmake add_library，然后安装库目标 [英] cmake add_library, followed by install library destination

问题描述

我正在尝试运行cmake生成makefile。在最小的工作示例中，我有3个文件和1个构建目录。

I am trying to run cmake to generate makefiles. In the minimum working example, I have three files and 1 build directory.

文件1是CMakeLists.txt，确切包含：

File 1 is CMakeLists.txt, containing exactly:

add_library (MathFunctions SHARED mysqrt.cxx)
install (TARGETS MathFunctions LIBRARY DESTINATION lib)

文件2是MathFunctions.h，其中包含函数原型，函数与mysqrt.cxx相关。

File 2 is MathFunctions.h containing the function prototype, function relates to mysqrt.cxx.

文件3是mysqrt .cxx包含include语句和函数定义。

File 3 is mysqrt.cxx containing include statement and a function definition.

当我创建一个构建子目录并运行 cmake ..时，我得到了

When I create a build sub-directory and run "cmake ..", I am getting

CMake Error at CMakeLists.txt:2 (install):
  install Library TARGETS given no DESTINATION!

我的add_library不是，然后安装语句语法正确吗？如果我同时删除SHARED和LIBRARY，则cmake构建不会出错。

Isn't my add_library, then install statement grammar correct? If I remove both SHARED and LIBRARY, cmake builds without errors.

感谢您的帮助。

推荐答案

问题可能出在您在CMake所谓的 DLL平台上运行此问题以及CMake如何在此类平台上对共享库进行分类。

The problem is likely down to you running this on what CMake calls a "DLL platform" and how CMake classifies a shared library on such a platform.

从文档中获取 安装 ：

From the docs for install:

对于DLL平台，共享库的DLL部分被视为 RUNTIME 目标和相应的导入库被视为 ARCHIVE 目标。所有基于Windows的系统，包括Cygwin都是DLL平台。

For DLL platforms the DLL part of a shared library is treated as a RUNTIME target and the corresponding import library is treated as an ARCHIVE target. All Windows-based systems including Cygwin are DLL platforms.

因此，请尝试将命令更改为：

So, try changing your command to something like:

install (TARGETS MathFunctions
         ARCHIVE DESTINATION lib
         LIBRARY DESTINATION lib
         RUNTIME DESTINATION bin)

这篇关于cmake add_library，然后安装库目标的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！