C ++ - 你能建立一个静态库到另一个？ [英] C++ - Can you build one static library into another?

问题描述

我遇到了一个奇怪的问题，我最近一个工作的Visual Studio 2008项目。

我试图编译一个新的静态库使用函数从另一个静态库。 （让我们说Lib1是我的静态库项目，Lib2是Lib1依赖的lib文件）。

我可以构建lib1没有问题;它包括lib2的头文件并调用它的函数，并且没有问题。

问题是当我构建一个单独的测试项目有Lib1作为依赖;它不会构建，我得到链接器错误。未解决的外部是我试图在Lib1内调用来自Lib2的函数。

当我在测试项目中包含Lib2时，这一切都是固定的。 p>

这一切对我来说都是有意义的;我可以测试Lib2没有被内置到Lib1 ..

我的问题是：有办法吗？我理想地希望能够将Lib1部署为独立的lib，而不需要Lib2。 （Lib2实际上只是一个从Windows平台SDK的Lib，所以它不是一个很大的交易...）

这是不允许的，因为它会允许人们

这个问题的专业方法是什么？

谢谢！

- R

解决方案

我看到两种可能性

1. 记录依赖关系


2. 在.h文件中使用#pragma，请求链接.lib。如果VS可以找到它，它就像在链接线上包含它一样。

http://msdn.microsoft.com/en-us/library/7f0aews7（VS.80）.aspx

  #pragma comment（lib，libname.lib）
  

I ran into a strange problem with a Visual Studio 2008 project I was working with recently.

I am trying to compile a new static library that uses functions from another static library. (Let's say Lib1 is my static library project, and Lib2 is the lib file that Lib1 depends on).

I am able to build lib1 without issue; It includes the header files for lib2 and calls its functions, and there are no problems.

The problem is when I build a separate test project that has Lib1 as a dependency; it won't build and I get linker errors. The unresolved externals are the functions I am trying to call within Lib1 that are from Lib2.

This is all fixed when I include Lib2 in my test project as well.

This all makes sense to me of course; I can test that Lib2 is not being built into Lib1..

My question is: is there a way to do this? I would ideally like to be able to deploy Lib1 as a standalone lib without requiring Lib2. (Lib2 is actually just a Lib from the Windows Platform SDK, so it's not really a big deal...)

Is this not allowed because it would allow people to "hide" third party libraries in their own, or something?

What would be a professional approach to this problem?

Thanks!

--R

解决方案

I would not advise using a librarian to take Windows' library contents into your own library -- it's likely that that's against the license.

I see two possibilities

1. Documenting the dependency
2. Using a #pragma in your .h file that requests the .lib to be linked against. If VS can find it, it's the same as including it on your link line.

http://msdn.microsoft.com/en-us/library/7f0aews7(VS.80).aspx

 #pragma comment(lib, "libname.lib")

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