[lxc-devel] [PATCH] add -lrt back for liblxc.so link

[Dwight Engen]

On Thu, 21 Feb 2013 16:58:36 -0500
Stéphane Graber <stgraber at ubuntu.com> wrote:

> On 02/21/2013 04:37 PM, Dwight Engen wrote:
> > got link error liblxc.so: undefined reference to `clock_gettime'
> > clock_gettime is used by lxclock.c and is indeed in librt.
> > 
> > Signed-off-by: Dwight Engen <dwight.engen at oracle.com>
> > ---
> >  src/lxc/Makefile.am | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/src/lxc/Makefile.am b/src/lxc/Makefile.am
> > index aba2e67..5497fab 100644
> > --- a/src/lxc/Makefile.am
> > +++ b/src/lxc/Makefile.am
> > @@ -168,6 +168,10 @@ AM_LDFLAGS += -Wl,-rpath -Wl,$(libdir)
> >  endif
> >  LDADD=liblxc.so @CAP_LIBS@ @APPARMOR_LIBS@ @SECCOMP_LIBS@
> >  
> > +if !IS_BIONIC
> > +LDADD += -lrt
> > +endif
> > +
> >  lxc_attach_SOURCES = lxc_attach.c
> >  lxc_cgroup_SOURCES = lxc_cgroup.c
> >  lxc_checkpoint_SOURCES = lxc_checkpoint.c
> > 
> 
> Can we do that with a statement in configure.ac similar to that for
> sem_open instead of using !IS_BIONIC?

Yeah, I looked at that, but I wasn't sure what other library to put in
the search with rt? On bionic does clock_gettime come from libc? ...
and would we just put AC_SEARCH_LIBS(sem_open, [rt c]) ? I don't have
bionic to try it out :)