Re: Mac OS X + PARI + FLTK

["Justin C. Walker" <justin@mac.com>]

Hi, Karim,

On Friday, November 7, 2003, at 10:46 AM, Karim BELABAS wrote:

>   I have ported gp hi-res graphics to the MacOS X platform, using the
> lightweight fltk library (www.fltk.org). Provided, fltk is installed,
> this is enabled by
>
>     Configure --with-fltk
>
> There are two problems:
>
> 1)  on a Unix host (or Cygwin) the graphics window is created by a 
> forked
> process and it is possible to go on working in GP while keeping many 
> such
> windows open. It works perfectly on Solaris, Linux and Windows 
> (Cygwin, and
> apparently native builds though I couldn't check that).
>
> Using this generic code and fltk-1.1.4 on MacOS X, control goes back to
> parent gp immediately, no window appears, and the forked-off gp 
> supposedly
> controlling the graphical window silently enters an infinite loop deep 
> down a
> Carbon routine (  ClearMenuBar(), called from the fltk routine
> Fl_mac.cxx:fl_open_display() ).
>
> I hacked the generic code to get something useful, governed by the 
> macro
> BROKEN_FORK (currently defined whenever __APPLE__ is).
>
> Maybe this problem is due to a broken Carbon library on my test 
> machine. You
> may want to try _not_ to define BROKEN_FORK in src/graph/plotfltk.c, 
> and see
> whether it works for you.

I'm currently setting up a 10.3 system, and I'm not yet in a position 
to check this out.  As soon as I get there, I will, and report back.

If anyone else has a clue to spare, please do.

BTW, what version of Mac OS X are you using?

Regards,

Justin

PS: for curiosity's sake, does everyone get those annoying 'qsecretary' 
notices, or do I just look like junk mail to Dan?

--
Justin C. Walker, Curmudgeon-At-Large  *
Institute for General Semantics        | "Weaseling out of things is 
what
                                       |  separates us from the animals.
                                       |  Well, except the weasel."
                                       |        - Homer J Simpson
*--------------------------------------*-------------------------------*