Bug#530949: gcc-4.4: warns about idiomatic use of Berkeley sockets

[Philip Martin <philip@codematters.co.uk>]

"brian m. carlson" <sandals@crustytoothpaste.ath.cx> writes:

> I'm aware of that.  My opinion remains the same: GCC should generate
> POSIX-conformant code without warnings with -O2 -Wall.  That can be
> achieved by disabling -fstrict-aliasing at -O2, by patching glibc to
> allow aliasing of the relevant types, by special-casing these types on a
> POSIX system, or by something else altogether.  How it is achieved is
> mostly irrelevant to me, as long as it stops breaking code that is
> explicitly documented by POSIX to work (and has worked for longer than
> I've been alive).

The definition of c99 from your earlier POSIX reference

http://www.opengroup.org/onlinepubs/000095399/utilities/c99.html

states that the compiler should accept code conforming to the ISO C
standard.  The code you are trying to compile doesn't conform.