Re: [AD] Porting Allegro to Haiku

[Peter W. <nov...@gm...>]

On 2008-09-12, scott mc <sco...@gm...> wrote:
> On Wed, Aug 27, 2008 at 1:54 AM, Peter Wang <nov...@gm...> wrote:
> > On 2008-08-27, Peter Wang <nov...@gm...> wrote:
> >>
> >> It's in include/allegro/platform/alunixac.hin, selected with `configure'
> >> on traditional Unix.
> >>
> >>     /* Define as the return type of signal handlers (`int' or `void'). */
> >>     #undef RETSIGTYPE
> >>
> >> But, you probably don't want usigalrm.c anyway.  Instead you should be
> >> using uthreads.c.  Probably you didn't define HAVE_LIBPTHREAD somewhere.
> >>
> >
> > Actually, you might not want that either, as there is a BeOS timer
> > implementation in btimeapi.cpp.  It should be updated to take into
> > account actual sleep times, however (see uptimer.c for what I mean).
> >
> > Peter
> >
> 
> 
> Ok.  I'm making some progress on this.  I put in a simple ifdef check
> in usigalrm.c and uptimer.c, the real fix is to figure out why Haiku
> isn't setting HAVE_LIBPTHREAD when it does.

It looks like you are using a static config file, as we usually do on
everything other than traditional Unix.  In that case it's your
responsibility to define ALLEGRO_HAVE_LIBPTHREAD somewhere.

> I then ran into a couple
> of case where -lm was assumed.  I'll look into a proper fix for that
> when i get time.  One should never "assume" that -lm is required, just
> add a check for it, such as checking to see if cos or sqrt is in libm
> and if so then use the -lm.  Anyways, after removing the '-lm's I ran
> into a few more errors and created patches for them.  My latest patch
> is now on the HaikuPorts site:
> http://ports.haiku-files.org/browser/haikuports/trunk/media-libs/allegro/allegro-4.3.10-haiku-4.diff?rev=155
> Here's where it's now failing during make:
> http://ports.haiku-files.org/wiki/media-libs/allegro/4.3.10/1?version=5
> It appears that allegro-config didn't get made?

It should look for allegro-config somewhere in the Allegro directory
rather than in the system directories, as Allegro might not yet be
installed at the time that loadpng is compiled.

Peter