You can add the proper location to the list of possible dirs. Fhen you can movd your dotfile
Hmmbiut maybe thats just LGPL bekng different. I gotta read GPL completely some time
Afaik, you only need to take GPL into consideration if you distribute GPL software. So if you use the os glibc, you can call into it without having to disclose your source code.
At least it has shielding