Re: Woo hoo ... a whole new set of compiler headaches!!

"Marc G. Fournier" <scrappy@postgresql.org> writes:
> With GCC 4.x, there are new optimizations, and a while new set of 
> "unknowns" that we're going to possibly get bug reports for ... and, it 
> *is* a .0 major release for GCC, so there are bound to be bugs in their 
> optimizer also, and I know there are some that will see "the latest and 
> greatest", install it and come flying at us when its possible that its a 
> bug in the newer GCC itself ...

FWIW, Red Hat has been using gcc 4 for Fedora Core 4 builds for some
time, so I know that PG (8.0.* that is) builds and passes regression
tests on all seven RH-supported architectures.  I have not yet dared
to look at what warning messages gcc4 may spit out though ;-) ...
I have heard that it's a great deal pickier than earlier releases.

[ As a comparison point: the recent gcc and glibc updates in FC4 did
break MySQL. ]
        regards, tom lane