Mailinglist Archive: opensuse-packaging (80 mails)

[Michael Matz <matz@xxxxxxx>]

Hi,

On Sun, 15 Aug 2010, Cristian Morales Vega wrote:

> http://www.opengroup.org/onlinepubs/9699919799/functions/dlsym.html
> What they finally did was adding this to POSIX 2008:
>
> "2.12.3 Pointer Types
>
> All function pointer types shall have the same representation as the
> type pointer to void. Conversion of a function pointer to void * shall
> not alter the representation. A void * value resulting from such a
> conversion can be converted back to the original function pointer
> type, using an explicit cast, without loss of information.
>
> Note:
>     The ISO C standard does not require this, but it is required for
> POSIX conformance."

Ahh, so they finally did something about this problem, I wasn't aware of 
this.

> So gcc is C99 compliant but not POSIX 2008 compliant (and gcc's man
> doesn't shows any posix option for -std). Someone feels like opening a
> bug report for this to gcc? I don't have the standards knowledge that
> will be needed when people starts to argue if POSIX should be
> dictating compilers behavior.

It should on platforms that are supposed to be POSIX.  Meaning that GCC 
should have a mode for POSIX compliance and further that this mode should 
be default on Linux.  The technical change necessary for this is fairly 
small.


Ciao,
Michael.
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