On Fri, Mar 31, 2017 at 05:48:17PM +0100, David Howells wrote: > Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > > stat_test.c: In function 'main': > > stat_test.c:557:3: warning: 'sval' may be used uninitialized in this function [-Wmaybe-uninitialized] > > check(sval == scheck, > > ^ > > ... > > I don't see any of these. gcc is actually wrong about this. What gcc are you > using? gcc version 4.9.2 (Debian 4.9.2-10) > > +nc: invalid option -- 'U' > > +/bin/nc: invalid option -- 'U' > > +nc -h for helpnc -h for help > > Sounds like I need to add my own helper to create AF_UNIX sockets rather than > using netcat. What version of nc do you have? Mine is 7.40. netcat-traditional_1.10-41 from Debian stable.