Re: Configure bug under Win9x-Cygwin systems.

[Jim . Fougeron]

Thank you for the follow up,

I have not pursued this further than "getting it to work" for myself (hence
the comment about this is probably not what you would want to do for a
public distribution).

NOTE I do not do much work in the *nix/GNU arena, but have done so since I
work on a couple of things which require GMP (which of course requires, or
at least strongly wants a *nix environment).  Up to this point, all of my
successful building had been done on a Win2k system (which is not my main
work dev system or my main home dev system, so it was not very convenient).
I had been have less than ideal success on any Win9x system.  I simply
wanted to pass on the information and work around I found which made my
Win9x/Cygwin system able to build GMP successfully.

Note that I just updated Cygwin over the net yesterday, and without this
work-around, the latest release still had serious configuration problems.

If the bug has been fixed in the DJGPP's libc, what would it take to get a
working Cygwin?  NOTE rebuilding Cygwin would be beyond my capabilities,
however, if I could replace a file or 2, then I can easily do that.  If
this is the wrong forum to ask this, then simply tell me so.  I am happy
with the ability to get it running in Win9x.  NOTE Win9x is sub optimal to
build under, simply because all the process spawning which happens during a
configure or make is slow (compared with any NT variant), and there is a
LOT of process spawning which takes place.

Jim.



                                                                                
                                                                 
                    Richard Dawe                                                
                                                                 
                    <address@hidden       To:     address@hidden                
                                                       
                    rve.co.uk>                cc:     address@hidden, 
address@hidden                                                            
                    Sent by:                  Subject:     Re: Configure bug 
under Win9x-Cygwin systems.                                         
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                    ve.co.uk                                                    
                                                                 
                                                                                
                                                                 
                                                                                
                                                                 
                    04/23/02 03:34 PM                                           
                                                                 
                                                                                
                                                                 
                                                                                
                                                                 




Hello.

address@hidden wrote:
[snip]
> I think I have found the problem.  It is in the check for command line
> parameter length.  I have changed .\configure from:
>
>   case $host_os in
>   msdosdjgpp*)
>     # On DJGPP, this test can blow up pretty badly due to problems in
libc
>     # (any single argument exceeding 2000 bytes causes a buffer overrun
>     # during glob expansion).  Even if it were fixed, the result of this
>     # check would be larger than it should be.
>     lt_cv_sys_max_cmd_len=12288;    # 12K is about right
>     ;;

This bug has been fixed in DJGPP's libc, but it's only in DJGPP CVS. I
think
this limit is still reasonable for DJGPP, to stop libtool using up large
amounts of memory. (The definitive answer lies in the mail archives for
djgpp-workers at http://www.delorie.com/djgpp/ . I can't remember all of
the
details right now.)

Perhaps Cygwin has some problems with its implementation of glob? Have you
tried asking on the Cygwin mailing lists whether anyone has had a similar
problem with libtool to the one mentioned above with DJGPP?

Regards,

--
Richard Dawe [ http://www.phekda.freeserve.co.uk/richdawe/ ]