[libvirt] [PATCH 5/7] build: probe for glib-2 library in configure

Daniel P. Berrangé berrange at redhat.com
Mon Sep 2 14:38:23 UTC 2019


On Mon, Sep 02, 2019 at 04:05:12PM +0200, Ján Tomko wrote:
> On Thu, Aug 29, 2019 at 07:02:48PM +0100, Daniel P. Berrangé wrote:
> > Prepare for linking with glib by probing for it at configure
> > time. Per supported platforms target, the min glib versions on
> > relevant distros are:
> > 
> >  RHEL-8: 2.56.1
> >  RHEL-7: 2.50.3
> >  Debian (Buster): 2.58.3
> >  Debian (Stretch): 2.50.3
> >  OpenBSD (Ports): 2.58.3
> >  FreeBSD (Ports): 2.56.3
> >  OpenSUSE Leap 15: 2.54.3
> >  SLE12-SP2: 2.48.2
> >  Ubuntu (Xenial): 2.48.0
> >  macOS (Homebrew): 2.56.0
> > 
> > This suggests that a minimum glib of 2.48 is a reasonable target.
> > 
> 
> Note that CentOS 6 has 2.28.8
> 
> > Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
> > ---
> > configure.ac          |  2 ++
> > libvirt.spec.in       |  1 +
> > m4/virt-glib.m4       | 30 ++++++++++++++++++++++++++++++
> > mingw-libvirt.spec.in |  2 ++
> > 4 files changed, 35 insertions(+)
> > create mode 100644 m4/virt-glib.m4
> > 
> > diff --git a/m4/virt-glib.m4 b/m4/virt-glib.m4
> > new file mode 100644
> > index 0000000000..9c7acb7889
> > --- /dev/null
> > +++ b/m4/virt-glib.m4
> > @@ -0,0 +1,30 @@
> > +dnl The glib.so library
> > +dnl
> > +dnl Copyright (C) 2016 Red Hat, Inc.
> > +dnl
> > +dnl This library is free software; you can redistribute it and/or
> > +dnl modify it under the terms of the GNU Lesser General Public
> > +dnl License as published by the Free Software Foundation; either
> > +dnl version 2.1 of the License, or (at your option) any later version.
> > +dnl
> > +dnl This library is distributed in the hope that it will be useful,
> > +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
> > +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> > +dnl Lesser General Public License for more details.
> > +dnl
> > +dnl You should have received a copy of the GNU Lesser General Public
> > +dnl License along with this library.  If not, see
> > +dnl <http://www.gnu.org/licenses/>.
> > +dnl
> > +
> > +AC_DEFUN([LIBVIRT_ARG_GLIB], [
> > +  LIBVIRT_ARG_WITH([GLIB], [glib-2.0 location], [check])
> > +])
> > +
> > +AC_DEFUN([LIBVIRT_CHECK_GLIB],[
> > +  LIBVIRT_CHECK_PKG([GLIB], [gthread-2.0], [2.48.0])
> 
> Given that pretty much everything requires us to allocate memory,
> failing to find it should be fatal.

Opps, yes, forgot this macro isn't fatal.

> (Which OTOH would block even docs generation, which should not need C
> code to be run)

libvirt.org docs generation is already doomed due to the recent
libxml2 min version update, so I'm already working to fix that.

Regards,
Daniel
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