[lxc-devel] commit d021832111871f46bbce7edb0806944b4247b5d0 code build failed on Fedora19

[Serge Hallyn]

Quoting Dwight Engen (dwight.engen at oracle.com):
> On Thu, 19 Jun 2014 20:53:42 +0000
> Serge Hallyn <serge.hallyn at ubuntu.com> wrote:
> 
> > Quoting Dwight Engen (dwight.engen at oracle.com):
> > > On Thu, 19 Jun 2014 14:16:28 +0000
> > > Serge Hallyn <serge.hallyn at ubuntu.com> wrote:
> > > 
> > > > Quoting Stéphane Graber (stgraber at ubuntu.com):
> > > > > On Thu, Jun 19, 2014 at 04:14:25PM +0800, simonjin wrote:
> > > > > > All,
> > > > > > 
> > > > > > gcc -I../../src -DLXCROOTFSMOUNT=\"/usr/lib64/lxc/rootfs\"
> > > > > > -DLXCPATH=\"/usr/var/lib/lxc\"
> > > > > > -DLXC_GLOBAL_CONF=\"/usr/etc/lxc/lxc.conf\"
> > > > > > -DLXCINITDIR=\"/usr/libexec\" -DLIBEXECDIR=\"/usr/libexec\"
> > > > > > -DLXCTEMPLATEDIR=\"/usr/share/lxc/templates\"
> > > > > > -DLOGPATH=\"/usr/var/log/lxc\"
> > > > > > -DLXC_DEFAULT_CONFIG=\"/usr/etc/lxc/default.conf\"
> > > > > > -DLXC_USERNIC_DB=\"/run/lxc/nics\"
> > > > > > -DLXC_USERNIC_CONF=\"/usr/etc/lxc/lxc-usernet\"
> > > > > > -DDEFAULT_CGROUP_PATTERN=\"/lxc/%n\" -DRUNTIME_PATH=\"/run\"
> > > > > > -DSBINDIR=\"/usr/sbin\"   -DHAVE_SELINUX  -DHAVE_SECCOMP  -g
> > > > > > -O2 -Wall -Werror -static  -o init.lxc.static lxc_init.o
> > > > > > error.o log.o utils.o caps.o   -lutil -lpthread -lselinux
> > > > > > /usr/bin/ld: cannot find -lselinux
> > > > > > /usr/lib/gcc/x86_64-redhat-linux/4.8.1/../../../../lib64/libpthread.a(libpthread.o):
> > > > > > In function `sem_open':
> > > > > > (.text+0x67fb): warning: the use of `mktemp' is dangerous,
> > > > > > better use `mkstemp'
> > > > > > collect2: error: ld returned 1 exit status
> > > > > > make[3]: *** [init.lxc.static] Error 1
> > > > > 
> > > > > Serge, looks like we have one more problem with the static
> > > > > init.lxc, why would it need to be linked with libselinux?
> > > > 
> > > > more configure.ac badness.
> > > > 
> > > > I'll send out a patch to hopefully fix all of these issues today,
> > > > hopefully after I get the seccomp cross-arch stuff done, but if
> > > > that drags out then I'll do it before.
> > > 
> > > Hey, on Fedora you can yum install libselinux-static to get around
> > > this, but that is just a workaround. Note that even with this,
> > > init.lxc.static still won't build on Fedora which is what I'm
> > > trying to fix in the other thread :)
> > > 
> > > Serge, I think I might've caused this by having -lselinux always in
> > > LIBS= to begin with. Hoping to save you some work, the following
> > > patch splits -lcap and -lselinux out of LIBS, so they can be
> > > specified only where needed.
> > 
> > Thanks, Dwight.  So with your patches both libcap and libselinux
> > should be addressed?  Leaving only libutil?  Is that one still an
> > issue?
> 
> Yes, I missed libutil since I pretty much always have glibc-static
> installed. Do we want to support building without that? We also have to
> decide on the log.c issue as mentioned in the libcap.a thread.

Sorry I'm not going to have time to do this today.  I think we should simply
use AC_LINK_IFELSE (as for example in
http://nerdland.net/2009/07/detecting-c-libraries-with-autotools/)
to trigger whether we have what we need to build the static lxc.