I wrote:
> I've seen this warning in recent Fedora builds, though not on my F16
> production box. Some googling suggests the locution
> #if __OPTIMIZE__
> #define _FORTIFY_SOURCE 2
> #endif
> but I've not tested that.
A bit later: testing on an F17 box (glibc-2.15-56.fc17.x86_64)
confirms Peter G's complaint, and also confirms that putting
the above into port/linux.h (instead of the template file) fixes the
problem. Don't know how to disable it on ICC, but I suppose there's
some way to test for ICC via an #if.
regards, tom lane