[issue17547] "checking whether gcc supports ParseTuple __format__... " erroneously returns yes with gcc 4.8

[Alex Leach]

Alex Leach added the comment:

I don't think I can tell you anything you don't know already, but ...

On Tue, 23 Apr 2013 19:38:18 +0100, Dave Malcolm <report at bugs.python.org>  
wrote:

> BTW, is that GCC format checking code available anywhere?

Is this what you mean?

http://gcc.gnu.org/viewcvs/gcc/trunk/gcc/c-family/c-format.c?annotate=193304&pathrev=193304

I got taken straight there from the link you sent, above...

>
> Am I right in thinking that it was an out-of-tree patch to GCC, from the
> pre-plugin days?

No idea.. GCC plugins have been around for several years now, though and  
the patch was only introduced in November. If this patch was applied to  
any past GCC distributions, I'm sure someone else would have been  
overwhelmed with warnings and would have mentioned something before now.  
Either way, it looks like the patch is going to stay.

In case you hadn't seen it already, the invoke.texi source file probably  
has the most descriptive changes:-

  http://gcc.gnu.org/viewcvs/gcc/trunk/gcc/doc/invoke.texi?r1=193304&r2=193303&pathrev=193304

KR,
Alex

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