add -P flag to m4(1)

[Joerg Sonnenberger]

On Sat, Dec 30, 2006 at 10:29:41AM -0800, Matthew Dillon wrote:
> :Here's a patch that will add the -P option to our m4.  Please let me know
> :what you think.  This is needed to bring in the latest flex sources.
> :
> :http://www.theshell.com/~pavalos/wip/m4.patch
> :
> :Thanks,
> :Peter
> 
>     Hmm.  Running the getopt loop twice is kinda a hack.  If you absolutely
>     have to do it at least put getopt's control string in one place so it
>     isn't duplicated.

. ..and use optreset please.

Joerg