[Openal-devel] FreeALUT dynamicly loading ogg/vorbis

[Chris Robinson]

On Tuesday 10 June 2008 08:22:06 pm Sherief N. Farouk wrote:
> Well, according to the rationale section in this link:
> http://www.opengroup.org/onlinepubs/009695399/functions/dlsym.html , a
> void* to function* cast *IS* portable across POSIX systems, so I don't
> think you'll have a portability problem. Strict ANSI C compatibility
> though, I'm not sure. Maybe an early solution would've been to have a
> dlfn() that returns a "void (*) (void)", but I guess that's a bit too late
> ;).

Yeah, I'd imagine there wouldn't be a problem with portability. My main 
problem is what to do with the warnings. If I do the casting in the example 
in that page:
*(void **)(&fptr) = dlsym(handle, "my_function");

I get:
warning: dereferencing type-punned pointer will break strict-aliasing rules

which is actually more serious since breaking strict-aliasing rules can break 
code, as opposed to just being told "ISO C doesn't like that".

The only thing I can think of to clear the warnings is to remove the 
ansi/pedantic flags, but I'm not sure if that's acceptable.