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Re: [Xen-devel] [PATCH 1 of 3] tools/configure.ac: add version check for glib2



On Wed, 2012-06-13 at 10:01 +0100, Roger Pau Monne wrote:
> Ian Campbell wrote:
> > On Wed, 2012-06-13 at 09:56 +0100, Roger Pau Monne wrote:
> >> Ian Campbell wrote:
> >>> On Wed, 2012-06-13 at 09:01 +0100, Olaf Hering wrote:
> >>>> # HG changeset patch
> >>>> # User Olaf Hering<olaf@xxxxxxxxx>
> >>>> # Date 1339572293 -7200
> >>>> # Node ID ea554d05821b95a7e96e4a25cbf953c5abe35aeb
> >>>> # Parent  a70b35deb2b5592cc1b2363860f21bb2c7049885
> >>>> tools/configure.ac: add version check for glib2
> >>>>
> >>>> xen-unstable fails to build in a SLES10SP4 environment since a long time
> >>>> because the included version of glib is slightly older than the required
> >>>> glib version. According to the docs glib version 2.12 includes base64
> >>>> support, but SLES10 is shipped with glib 2.8.6:
> >>>>
> >>>> qemu-timer-common.o: In function `init_get_clock':
> >>>> /usr/src/packages/BUILD/xen-4.2.25432/non-dbg/tools/qemu-xen-dir/qemu-timer-common.c:57:
> >>>> undefined reference to `clock_gettime'
> >>>> qga/guest-agent-commands.o: In function `qmp_guest_file_write':
> >>>> qga/guest-agent-commands.c:249: undefined reference to `g_base64_decode'
> >>>> qga/guest-agent-commands.o: In function `qmp_guest_file_read':
> >>>> qga/guest-agent-commands.c:224: undefined reference to `g_base64_encode'
> >>>> collect2: ld returned 1 exit status
> >>>> make[3]: *** [qemu-ga] Error 1
> >>>>
> >>>> Add a version check to configure to require at least glib 2.12 to build
> >>>> qemu-upstream.
> >>> Does this cause configure to fail or does it cause us to just not build
> >>> qemu-upstream? I think the former (which is fine with me) but your last
> >>> sentence suggests that latter.
> >>    From my understanding it causes Qemu build to fail, since our version
> >> of Qemu configure script doesn't check for glib version.
> >
> > But this patch makes it do that check, right?
> 
> Yes, we currently check for glib, but we don't require any specific 
> version. This patch sets the necessary glib version for Qemu-upstream 
> compilation to succeed as a requirement for our configure script.

Right. By "this" in my original question I was asking about the change
not the original failure, sorry that was probably not obvious. IOW the
behaviour after this patch is that our configure will now fail.

> 
> >
> >> The following commit should be backported to our Qemu tree also
> >> a52d28afb4e825a5b28815370a268904a4c6dc11.
> >>
> >>>> Signed-off-by: Olaf Hering<olaf@xxxxxxxxx>
> >> Anyway, since we check for glib already, I think this should be applied,
> >> so at least we check for the required version
> >>
> >> Acked-by: Roger Pau MonnÃ<roger.pau@xxxxxxxxxx>
> >>
> >> Please rerun autoconf after applying this.
> >>
> >>>> diff -r a70b35deb2b5 -r ea554d05821b tools/configure.ac
> >>>> --- a/tools/configure.ac
> >>>> +++ b/tools/configure.ac
> >>>> @@ -115,7 +115,7 @@ AX_PATH_PROG_OR_FAIL([BCC], [bcc])
> >>>>    AX_PATH_PROG_OR_FAIL([IASL], [iasl])
> >>>>    AX_CHECK_UUID
> >>>>    AX_CHECK_CURSES
> >>>> -PKG_CHECK_MODULES(glib, glib-2.0)
> >>>> +PKG_CHECK_MODULES(glib, [glib-2.0>= 2.12])
> >>>>
> >>>>    # Check library path
> >>>>    AX_DEFAULT_LIB
> >>>>
> >>>> _______________________________________________
> >>>> Xen-devel mailing list
> >>>> Xen-devel@xxxxxxxxxxxxx
> >>>> http://lists.xen.org/xen-devel
> >>>
> >
> >
> 



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