Windows OS: fc++ creates symbolic filesystem links to allow easy navigation between features and derivatives. When copying sources including existing links Windows cannot properly handle the copied links. To avoid such problems, symlinks in a source directory ("*.lnk") have to be deleted before copy a folder with sources. These files are regenerated when running fc++.
LinuxOS + Eclipse + CVS: Exclipse does not handle Linux OS-links correctly. You cannot do a CVS-commit with OS symlinks in the source and thus you cannot do the commit with FeatureC++ source code. Two workarounds: (1) commit manually from the command line or (2) delete alle OS symlinks before commit.