Thanks for your answer.

Indeed, I red this wikipedia page and it suggests that I could use the library. Also, if I look at http://en.wikipedia.org/wiki/Library...ynamic_linking it says:
The nature of dynamic linking makes it a common place beyond which someone who grants a software licenseGPL linking exception allows programs to use libraries available under GPL licenses without themselves becoming subject to the full terms of the GPL as a result.
But then again, if I read on http://www.gnu.org/licenses/gpl-faq....FUseGPLPlugins is see:
If the program dynamically links plug-ins, and they make function calls to each other and share data structures, we believe they form a single program, which must be treated as an extension of both the main program and the plug-ins. In order to use the GPL-covered plug-ins, the main program must be released under the GPL or a GPL-compatible free software license, and that the terms of the GPL must be followed when the main program is distributed for use with these plug-ins.
So now I am not sure any more.....

I have send the author an email, but no answer yet...

Joost