[SDL] OSX port

[matt]

On Sun, 1 Jul 2007 08:44:18 -0400
"Mike Shal" <marfey at gmail.com> wrote:

> On 7/1/07, Chris Dobbs <chris_dobbs at dobbscr.karoo.co.uk> wrote:
> >
> >
> > All,
> > I am about to port an SDL app. from linux to OSX. I have never
> > developed on OSX before but just wondered if there any gotchas I
> > should know about. As it's BSD under the hood, allbeit the Darwin
> > flavour  (which I believe uses the mach micro-kernel...) it should
> > be straight forward...yeah right !!
> >
> > I am using wxWidgets for the GUI portion of the app and SDL for the
> > sound and video abstraction.
> 
> I don't know anything about wxWidgets, but the SDL portion worked out
> of the box for me when I ported marfitude. The only major issues I had
> in porting (as I recall...it's been a while :) were:
> 
> 1) There was no simple dlopen()/dlsym()/dclose() functionality that
> you would expect in a Linux or BSD environment. I was eventually able
> to wrap it with a few macros that call
> CFReallyLongFunkyNameFunctions(). Point is if you dynamically load
> stuff at run time you should check to see if OSX now supports those
> functions (I last checked 10.4, I think...), or just copy the macros
> from util/dl.h in the marfitude source.
> 
> 2) The other issue I had was providing the .dmg file (bundle?) so you
> can move the entire game using the one icon, double click to run, etc.
> It just took me a while to figure out the directory structure, which
> files were actually necessary, etc. Also there was some weird caching
> issue where OSX caches bundle data, so I just had to log out and log
> back in every time I changed that stuff (like Info.plist and friends).
> Maybe there's an easier way - I'm clearly not a Mac guru :). If it
> helps, you could again look at the marfitude source (in
> marfitude/macosx/, and mk/arch/darwin.mk) as a fairly basic example.
> That directory contains all the stuff that forms the bundle info, and
> the darwin.mk file has the commands to build the bundle. You might
> want to check out a tutorial online first though so you have some idea
> of what's going on.
> 
> If you don't use dlfoo() and don't want to build a bundle, you might
> have an easy time with it ;)
> 
> Hope that helps,
> -Mike
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if you app is open source, please provide a make file that can install
like linux/unix.  i have found linux apps where users have an osx port,
but only provide a dmg.  most if not all will like that and the .app
package, but i would still rather install with a make file sometimes.
and it lets others help you too.

matt