Re: [Plib-users] Building Plib on Mac OSX (Darwin)

[Steve B. <sjb...@ai...>]

Reed Hedges wrote:

>  > The "-O6" stuff was removed recently in CVS.
> 
>  > Dunno - some attempt to get more speed by increasing the optimisation
> level
>  > I guess.
> 
> Yeah, except gcc 2.95.2 only goes up to -O3, according to the
> documentation I have...
> and it fails with -O6 :)

No it doesn't...

  /u/steve> gcc -O2 t1.cxx
  /u/steve> gcc -O6 t1.cxx
  /u/steve> gcc -O9 t1.cxx
  /u/steve> gcc --version
  2.95.2

Doesn't seem to be a problem.  I don't think you'll get any better optimisation
after -O3 though.

> yup...  this OpenGL demands GLint...  will this break existing
> applications on Darwin?

Almost no OpenGL programs would compile 'out of the box' if all GL
types were rigerously enforced.  But since Darwin appears to only be
checking that GLint != int...you may 'get away with it' with many
programs.

> If so, c'est la vie, I guess.  It was only those two lines in ssg
> though, none in sg or util.

I find that *very* suprising.

Evidently it doesn't object to you passing a float in place of a GLfloat
and I guess there are relatively few places where we pass integers into
OpenGL.

> Only with some sneaky hacks. All the directories are different, nothing
> like normal unix system.

Ack!  What a pain.
 
> Also:
>         1. is there a really minimal sample program I can use to test?

Most of the programs in the PLIB examples are pretty minimal.  You have
to download those separately from the PLIB web site.

>         2. I ran configure script with --without-x. How important is X
> windows to any part of
>         using plib?

Not at all - PLIB runs under Windoze without X.

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