Here's a patch that adds USE=static-libs support to libcdio-0.82.ebuild
Created attachment 238947 [details, diff] libcdio-0.82-static-libs.patch
I don't get the point in conditionally removing the .la files; libcdio provides .pc files with correct deps as far as I can see. We don't need to rely on libtool even for static linking. (the .pc files are probably overlinking for non-static linking though)
As far as I can tell, this has been resolved a while ago, has it not?