Sebastian Gutsfeld wrote:

> today I upgraded my jack lib and so I wanted to compile csound5 with
> this new lib.
> 
> But when linking _CsoundVST.so I get the error "/usr/bin/ld: cannot find
> -l_csnd", although _csnd.so is in my csound5 build directory and "-L."
> is set.
> 
> Can anybody help me?

-l_csnd is looking for lib_csnd.so, and not _csnd.so. As a temporary
workaround, try running this command in the csound5 source directory:
   ln -s _csnd.so lib_csnd.so