Re: [Xen-devel] [PATCH for 4.6] configure: don't silently disable systemd support

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Sep 10, 2015 at 12:04:10PM +0100, Wei Liu wrote:
> On Thu, Sep 10, 2015 at 11:54:16AM +0100, Ian Campbell wrote:
> > On Wed, 2015-09-09 at 23:35 +0100, Wei Liu wrote:
> > > Originally when user runs ./configure --enable-systemd and systemd
> > > development library is not available the build system silently disables
> > > systemd support. This is not in line with normal expectation.
> > > 
> > > Instead, configure should error out when user has asked for systemd
> > > support but development libraries can't be found.
> > > 
> > > Reported-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
> > > Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> > > ---
> > > Please rerun ./autogen.sh.
> > > ---
> > >  m4/systemd.m4 | 6 +++++-
> > >  1 file changed, 5 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/m4/systemd.m4 b/m4/systemd.m4
> > > index 8284993..84508a1 100644
> > > --- a/m4/systemd.m4
> > > +++ b/m4/systemd.m4
> > > @@ -85,7 +85,11 @@ AC_DEFUN([AX_CHECK_SYSTEMD], [
> > >           AC_DEFINE([HAVE_SYSTEMD], [1], [Systemd available and
> > > enabled])
> > >                   systemd=y
> > >                   AX_CHECK_SYSTEMD_LIBS()
> > > -     ],[systemd=n])
> > > +     ],[
> > > +>        >       > AS_IF([test "x$enable_systemd" != "x"],
> > 
> > At this point the value of enable_systemd is either empty or ...what...? I
> > think "yes"?, with "no" having been ruled out earlier?
> > 
> > Or can it be just "y"?
> > 
> 
> At this point, it can't be no. It's either empty or "yes" (or "y"?). I

For the record, it was "yes".

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