Date: Wed, 20 Oct 1999 16:19:47 -0700 (PDT) From: bde@FreeBSD.ORG (Bruce Evans) To: asmodai@wxs.nl, hackers@freebsd.org Cc: bde@freebsd.org, billf@freebsd.org Subject: Re: getopt.h Message-ID: <19991020231947.6A4D414BE0@hub.freebsd.org> In-Reply-To: <19991020221007.A90211@daemon.ninth-circle.org>
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> In unistd.h we have definitions for getopt, optarg, optind, opterr, and
> optopt.
These are the standard POSIX (.2?) declarations.
> The things I propose to add to unistd.h are the following:
> struct option
> {
> char *name;
> int has_arg;
> int *flag;
> int val;
> };
> #define no_argument 0
> #define required_argument 1
> #define optional_argument 2
> extern int getopt_long (int, char *const [], const char *,
> const struct option *, int *);
> extern int getopt_long_only (int, char *const [], const char *,
> const struct option *, int *);
> extern int _getopt_internal (int, char *const [], const char *,
> const struct option *, int *, int );
> This should enable us to compile programs which require getopt.h by
> simply including unistd.h.
These are gnu extensions which we don't even support in libc, so they
shouldn't be declared anywhere in /usr/include. I think ports that
use the gnu extensions handle this problem by duplication the gnu
sources. Not ideal, but the getopt sources are small.
Bruce
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