media-video/vamps-0.95 works on amd64 after applying a patch to the Makefile/Ebuild
Created attachment 36246 [details, diff] Patch for vamps-0.95, put into the files/ directory modifies the Makefile (add -lm to the linker command and modify some compiler settings)
Created attachment 36247 [details] Modified ebuild for vamps-0.95
In CVS, thanks!