+our (%valopts_long, %valopts_short);
+our @rvalopts;
+
+sub defvalopt ($$$$) {
+ my ($long,$short,$val_re,$how) = @_;
+ my $oi = { Long => $long, Short => $short, Re => $val_re, How => $how };
+ $valopts_long{$long} = $oi;
+ $valopts_short{$short} = $oi;
+ # $how subref should:
+ # do whatever assignemnt or thing it likes with $_[0]
+ # if the option should not be passed on to remote, @rvalopts=()
+ # or $how can be a scalar ref, meaning simply assign the value
+}
+
+defvalopt '--since-version', '-v', '[^_]+|_', \$changes_since_version;
+defvalopt '--distro', '-d', '.+', \$idistro;
+defvalopt '--existing-package','', '.*', \$existing_package;
+