Re: What is the right way to specify -Wno-format-contains-nul?

[Bruce Korb]

On 08/09/12 14:09, Stefano Lattarini wrote:
> > It seems that AM_PROG_CC
> Huh?  There is no such think like 'AM_PROG_CC'.  I guess you mean
> AC_PROG_CC.

Yes, thank you.  Wrong forum, too.  (autoconf not automake)

> How can -Wall cause the compiler to die?  Have you added -Werror to
> $(AM_CFLAGS) maybe?

Me?  No.  My clients?  Sometimes.

> This would go against the principle that "the user is always right (when
> he is explicit)"

Which is the root of the problem:

> > (Actually, gcc probably ought not override a specifically set option
> > with a "-Wall", but this the wrong forum for that...)

In that forum, it seems that some folks think that "-Wall" appearing after
"-Wno-some-obscure-warning-thingy" over-rides it, and others think it
nonsensical.  I'm in the latter camp, obviously.  I am explicit in that
this "format-contains-nul" should never have been warned about in the
first place and someone specifying CFLAGS a la:

   ./configure CFLAGS="-Dxxx -Wall -Werror"

ought to work, even given gcc's pickishness about format strings.
And, yes, in this particular case, I'd like to just say any user
turning on that warning is wrong -- whether deliberate or accidentally
with -Wall.  So I'll fix it in GCC and we'll have it fixed in user
space in a few years. :)

Cheers - Bruce