[fpc-pascal] set SONAME in LINUX shared libraries

[Marco van de Voort]

In our previous episode, Werner Bochtler said:
> 
> Can anyone give me a hint how to set the 'soname'in FPC shared libraries
> for LINUX?

If -o doesn't work, nothing will.
 
> I have tried to pass "-soname libTest.so.0" via the k-switch to the
> linker but this doesn't seem to work.

-k is a stopgap. The compiler doesn't parse this for possible conflicting
switches.