[adding gnulib] On 09/04/2012 10:52 AM, Jasper Lievisse Adriaanse wrote: >> I'd still like to know the compiler error you got when <sys/socket.h> >> was not present, but just guessing from the source code, I see one call >> of socket() (protected behind #if defined(HAVE_NET_IF_H) && >> defined(SIOCBRADDBR), but maybe those are both true for OpenBSD?). Even >> though I'm pushing, I would STILL like to know why. > Of course, here it is: > > In file included from util/virnetdevbridge.c:35: > /usr/include/net/if.h:276: warning: 'struct sockaddr' declared inside > parameter list
Ouch. The POSIX definition of <net/if.h> doesn't include any interface that needs to use struct sockaddr. Which OpenBSD extension function is triggering this warning? According to POSIX, this .c file should compile: #define _POSIX_C_SOURCE 200809L #include <net/if.h> #include <sys/socket.h> struct if_nameindex i; and it might just compile on OpenBSD (I haven't checked myself); the difference is that we have explicitly asked for namespace pollution beyond what _POSIX_C_SOURCE guarantees, which may explain why 'struct sockaddr' is interfering. But since <net/if.h> is required to be self-contained when in a strict environment, it makes sense for it to also be self-contained in an extension environment. It sounds like gnulib should consider providing a replacement <net/if.h> function to work around this lameness. -- Eric Blake ebl...@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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