Re: [HACKERS] pg_upgrade's exec_prog() coding improvement

[Tom Lane]

Heikki Linnakangas <heikki.linnakan...@enterprisedb.com> writes:
> On 23.08.2012 23:07, Alvaro Herrera wrote:
>> One problem with this is that I get this warning:
>> /pgsql/source/HEAD/contrib/pg_upgrade/exec.c: In function ‘s_exec_prog’:
>> /pgsql/source/HEAD/contrib/pg_upgrade/exec.c:96:2: warning: function might 
>> be possible candidate for ‘gnu_printf’ format attribute 
>> [-Wmissing-format-attribute]
>> /pgsql/source/HEAD/contrib/pg_upgrade/exec.c:96:2: warning: function might 
>> be possible candidate for ‘gnu_printf’ format attribute 
>> [-Wmissing-format-attribute]
>> 
>> I have no idea how to silence that.  Ideas?

> You can do what the warning suggests, and tell the compiler that 
> exec_prog takes printf-like arguments.

exec_prog already has such decoration, and Alvaro's patch doesn't remove
it.  So the question is, exactly what the heck does that warning mean?

                        regards, tom lane


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