Re: Re: Autoconf and differences between GNU getopt and OpenBSD getopt

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Simon Josefsson wrote:

>Derek Robert Price <[email protected]> writes:
>
>>AC_DEFUN([gl_GETOPT],
>>[
>>  gl_PREREQ_GETOPT
>>                                                                          
 
>>
>>
>>  GETOPT_H=
>>  AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
>>  AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
>>                                                                          
 
>>
>>
>>  if test -n "$GETOPT_H"; then
>>     gl_GETOPT_SUBSTITUTE
>>  fi
>>])
>>
>>
>>So, it does make sense that, if Alex's version of BSD comes packaged
>>with a getopt.h header but an incompatible getopt() function, then the
>>latest gl_GETOPT would incorrectly choose to use the system getopt()
>>function rather than the GNULIB substitute.
>
>
>Do BSD really have getopt_long_only?  If so, then the getopt.m4 need
>to be improved...


According to Alex, yes, it does.  A quick google search on "bsd
getopt_long_only" brings up a patch submission from February and a bug
report from March, so I presume the patch was accepted.  Here's a link
to an email that claims getopt_long_only first appeared in OpenBSD 3.3
and FreeBSD 5.2:
<http://mailman.fastxs.net/pipermail/dbmail-dev/2004-July/004085.html>.

A more focused search of the FreeBSD site brings up a lot more bug
reports from March and the getopt_long.c file itself containing
getopt_long_only():
<http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/stdlib/getopt_long.c?rev=1.12&content-type=text/x-cvsweb-markup>.

A search of openbsd.org brings up similar results.  Here's the
getopt.h from the CVS repo there, also showing a getopt_long_only():
<http://www.openbsd.org/cgi-bin/cvsweb/src/include/getopt.h?rev=1.1&content-type=text/x-cvsweb-markup>.

>>Something like Alex's test program should probably be added to
>>gl_GETOPT, unless someone can suggest a better way to detect or work
>>around the problem.
>
>
>...however, if BSD does not have getopt_long_only, it seems to me that
>the above test should work.


Yes, it should.

Cheers,

Derek

- --
                *8^)

Email: [email protected]

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