As of glibc-2.8, struct ucred is guarded by the __USE_GNU #ifdef as you
show below. You'll need to add -D_GNU_SOURCE to DEFS or CPPFLAGS in
order to build munge-0.5.8 there. For example:
CPPFLAGS="-D_GNU_SOURCE" ./configure && make
I'm hoping to release 0.5.9 in the next couple of weeks. I've already
added the change to have configure set this define.
-Chris
On Wed, 2010-03-03 at 01:14pm PST, "David N. Lombard" wrote:
>
> I'm having a problem building on F12:
>
> $ make
> ...
> if gcc -DHAVE_CONFIG_H -I. -I. -I../../config -I../../src/libcommon
> -I../../src/libmissing -I../../src/libmunge -DWITH_PTHREADS -g -O2 -MT
> munged-auth_recv.o -MD -MP -MF ".deps/munged-auth_recv.Tpo" -c -o
> munged-auth_recv.o `test -f 'auth_recv.c' || echo './'`auth_recv.c; \
> then mv -f ".deps/munged-auth_recv.Tpo" ".deps/munged-auth_recv.Po";
> else rm -f ".deps/munged-auth_recv.Tpo"; exit 1; fi
> auth_recv.c: In function âauth_recvâ:
> auth_recv.c:312: error: storage size of âcredâ isnât known
> make[2]: *** [munged-auth_recv.o] Error 1
> make[2]: Leaving directory
> `/home/dnlombar/RockCreek/slurm/munge-0.5.8/src/munged'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/home/dnlombar/RockCreek/slurm/munge-0.5.8/src'
> make: *** [all-recursive] Error 1
> $
>
> The extract from auth_recv.c is:
>
> 309-int
> 310-auth_recv (m_msg_t m, uid_t *uid, gid_t *gid)
> 311-{
> 312: struct ucred cred;
> 313- socklen_t len = sizeof (cred);
> 314-
> 315- if (getsockopt (m->sd, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0) {
> 316- log_msg (LOG_ERR, "Unable to get peer identity: %s", strerror
> (errno));
> 317- return (-1);
>
> And here's the definition of 'struct ucred':
>
> 330-#ifdef __USE_GNU
> 331-/* User visible structure for SCM_CREDENTIALS message */
> 332:struct ucred
> 333-{
> 334- pid_t pid; /* PID of sending process. */
> 335- uid_t uid; /* UID of sending process. */
> 336- gid_t gid; /* GID of sending process. */
> 337-};
>
>
> As you can see, __USE_GNU is required for this to be visible. To
> enable munge to build, I needed to do this:
>
> $ diff -u munge-0.5.8/configure.orig munge-0.5.8/configure
> --- munge-0.5.8/configure.orig 2006-11-13 16:21:22.000000000 -0800
> +++ munge-0.5.8/configure 2010-03-03 11:43:18.987938959 -0800
> @@ -13122,7 +13122,7 @@
> }'
> fi
>
> -DEFS=-DHAVE_CONFIG_H
> +DEFS="-DHAVE_CONFIG_H -D_GNU_SOURCE"
>
> ac_libobjs=
> ac_ltlibobjs=
> $
>
> Am I missing something here?
>
> --
> David N. Lombard, Intel, Irvine, CA
> I do not speak for Intel Corporation; all comments are strictly my own.
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