[Mac OS X] New() produces odd compiler warnings

syphilis has asked for the wisdom of the Perl Monks concerning the following question:

Hi,
There's a bug report from a guy running Mac OS X 10.6, perl 5.10.0 and gcc-4.2 where every instance of New() generates a warning - eg:

Random.xs:13: warning: format not a string literal and no format argum
+ents
[download]

is in response to

SV * Rgmp_randinit_default() {
 gmp_randstate_t * rand_obj;
 SV * obj_ref, * obj;

 New(1, rand_obj, 1, gmp_randstate_t); /* line 13 */
....
[download]

Google supplies plenty of hits for the warning, but I haven't yet been able to understand why that particular piece of code should produce that particular warning - and I don't have access to a machine that exhibits the behaviour.

Has anyone struck (and solved ?) this before ? It's not critical, but it would be nice to quiet those warnings.

Cheers,
Rob

Comment on [Mac OS X] New() produces odd compiler warnings Select or Download Code

Replies are listed 'Best First'.
Re: [Mac OS X] New() produces odd compiler warnings by dave_the_m (Monsignor) on Jun 19, 2010 at 08:53 UTC
Part of the macro expansion of New() does a check for wrap-around, and the bit that prints the error message generates that warning. It's harmless, but has been fixed in 5.10.1 Dave.	[reply]
Re^2: [Mac OS X] New() produces odd compiler warnings by ikegami (Patriarch) on Jun 19, 2010 at 09:15 UTC
commit f1f66076265cc2bac3adabd54c01b0dea28ca3f0	[reply]
Re^2: [Mac OS X] New() produces odd compiler warnings by syphilis (Archbishop) on Jun 19, 2010 at 15:09 UTC
... has been fixed in 5.10.1 Aaah ... good. Thanks dave_the_m , ikegami. Cheers, Rob	[reply]
Re: [Mac OS X] New() produces odd compiler warnings by ikegami (Patriarch) on Jun 18, 2010 at 23:31 UTC
In theory, the warning comes from doing something like `fprintf(f, s);` [download] instead of `fprintf(f, "%s", s);` [download] Pass the .c through the preprocessor and see what you end up with.	[reply] [d/l] [select]