[CMake] Does find_library check that a found library does in fact link?

[Rolf Eike Beer]

Michael Wild wrote:
> On 09/28/2011 02:44 AM, Clifford Yapp wrote:
> > I've run into a situation where find_library is returning a symlink:
> > 
> > /usr/lib/libblah.so -> libblah.so.1
> > 
> >  but libblah.so.1 does not actually exist (e.g. the symlink is bad).
> > 
> > Is there an option I can set to have find_library ensure that a found
> > library file is valid and links?

> Yes, but you need to do it yourself, e.g. use the CheckFunctionExists
> module.

Which is unreliable on it's own as we found out during the FindThreads pthread 
stuff. I think this should be considered as a bug.

Eike
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