rpmlint gives an FHS error:
[olea@lisergia pica-0.4.1]$ rpmlint -i -v ~/public_html/paquetes-rpm/pica-0.4.1-2olea.noarch.rpm
I: pica checking
E: pica only-non-binary-in-usr-lib
There are only non binary files in /usr/lib so they should be in /usr/share.
Better if it's fixed by the authors instead trying to patch sources.
There are other warning/errors fixed with some SPEC love. Look there for more info.