expand_symlinks
alt = expand_symlinks( hc->altdir, &rest, 0, 1 );
static char* expand_symlinks( char* path, char** restP, int no_symlink_check, int tildemapped );
cp = expand_symlinks( hc->expnfilename, &pi, hc->hs->no_symlink_check, hc->tildemapped );
cp = expand_symlinks( indexname, &pi, hc->hs->no_symlink_check, hc->tildemapped );