bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Klaus Zeitler]

I'm trying to build emacs on my Centos 6.5 PC
(Linux destgd0h411156 2.6.32-358.23.2.el6.x86_64 #1 SMP Wed Oct 16
18:37:12 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux).

I simply ran "configure --prefix=..." and then "make", but make fails
with linker errors for temacs:

--- snip ---

gcc -std=gnu99 -nostdlib -Demacs  -I. -I/opt/kze/emacs-24.3/src -I../lib -I/opt/kze/emacs-24.3/src/../lib   -pthread -I/usr/include/gtk-2.0 -I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng12   -I/usr/include/freetype2         -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include   -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include   -I/usr/include/freetype2      -MMD -MF deps/.d -MP     -g3 -O2   -Wl,-znocombreloc  \
          -o temacs pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o dispnew.o frame.o scroll.o xdisp.o menu.o xmenu.o window.o charset.o coding.o category.o ccl.o character.o chartab.o bidi.o cm.o term.o terminal.o xfaces.o xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o gtkutil.o   emacs.o keyboard.o macros.o keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o minibuf.o fileio.o dired.o cmds.o casetab.o casefiddle.o indent.o search.o regex.o undo.o alloc.o data.o doc.o editfns.o callint.o eval.o floatfns.o fns.o font.o print.o lread.o syntax.o unexelf.o bytecode.o process.o gnutls.o callproc.o region-cache.o sound.o atimer.o doprnt.o intervals.o textprop.o composite.o xml.o profiler.o     xfont.o ftfont.o xftfont.o ftxfont.o  fontset.o fringe.o image.o  terminfo.o lastfile.o    vm-limit.o   ../lib/libgnu.a      -ltiff -ljpeg -lpng -lz -lm -lgif -lXpm -pthread -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lcairo -lpango-1.0 -lfreetype -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0   -lSM -lICE -lX11 -lXrender -lXft      -lrt -lrt        -ltinfo  -pthread -lgio-2.0 -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0   -pthread -lgobject-2.0 -lgthread-2.0 -lrt -lglib-2.0    -lfreetype   -lfontconfig      -lpthread   -lm -lgcc -lc -lgcc /usr/lib64/crtn.o 
xsettings.o: In function `something_changed_gsettingsCB':
/opt/kze/emacs-24.3/src/xsettings.c:215: undefined reference to `g_settings_get_value'
/opt/kze/emacs-24.3/src/xsettings.c:230: undefined reference to `g_settings_get_value'
/opt/kze/emacs-24.3/src/xsettings.c:244: undefined reference to `g_settings_get_value'
xsettings.o: In function `init_gsettings':
/opt/kze/emacs-24.3/src/xsettings.c:816: undefined reference to `g_settings_list_schemas'
/opt/kze/emacs-24.3/src/xsettings.c:822: undefined reference to `g_settings_new'
/opt/kze/emacs-24.3/src/xsettings.c:828: undefined reference to `g_settings_get_value'
/opt/kze/emacs-24.3/src/xsettings.c:839: undefined reference to `g_settings_get_value'
/opt/kze/emacs-24.3/src/xsettings.c:848: undefined reference to `g_settings_get_value'
collect2: ld returned 1 exit status
make[1]: *** [temacs] Error 1
make[1]: Leaving directory `/opt/kze/emacs-24.3/src'
make: *** [src] Error 2

--- snip ---

-- 
 -------------------------------------------------------------------
|  Klaus Zeitler              Alcatel-Lucent                        |
|  Lorenzstrasse 10           D-70435 Stuttgart, Germany            |
|  Department:                MS/E Building: 004  Office: 1/62      |
|  Telefon:                   +49 711 821 43898                     |
|  Email:                     klaus.zeitler@alcatel-lucent.com      |
|                                                                   |
| Alcatel-Lucent Deutschland AG                                     |
| Sitz der Gesellschaft: Stuttgart · Amtsgericht Stuttgart HRB 4026 |
| Vorsitzender des Aufsichtsrates: Michael Oppenhoff                |
| Vorstand: Wilhelm Dresselhaus (Chairman) · Hans-Jörg Daub ·       |
|           Andreas Gehe                                            |
 -------------------------------------------------------------------
---
Issawi's Laws of Progress:
 The Course of Progress: Most things get steadily worse.
 The Path of Progress: A shortcut is the longest distance between two points.

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Glenn Morris]

Klaus Zeitler wrote:

> I'm trying to build emacs on my Centos 6.5 PC
> (Linux destgd0h411156 2.6.32-358.23.2.el6.x86_64 #1 SMP Wed Oct 16
> 18:37:12 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux).
>
> I simply ran "configure --prefix=..." and then "make", but make fails
> with linker errors for temacs:
[...]
> xsettings.o: In function `something_changed_gsettingsCB':
> /opt/kze/emacs-24.3/src/xsettings.c:215: undefined reference to `g_settings_get_value'

Please see my explanation here:

http://lists.gnu.org/archive/html/help-gnu-emacs/2014-03/msg00503.html

Red Hat has taken the unusual step of ripping out the gsettings related
parts of their glib library. So they have something that advertises
itself as gio 2.26.1, but does not include gsettings.

I think this is an odd thing to do. I encourage anyone with a RH
subscription to report it as a bug against glib2-devel.

In Emacs, you can work around it by using configure --without-gsettings.

But Emacs should add a configure test to check that gsettings is really
present. I tried to do this by simply testing for gio/gsettings.h, but
sadly you can't include that header directly, it throws an error if not
included via gio/gio.h.

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Jan Djärv]

Hello.

I have added a configure check for this in the trunk.

	Jan D.

2014-03-27 16:59, Glenn Morris skrev:
> Klaus Zeitler wrote:
>
>> I'm trying to build emacs on my Centos 6.5 PC
>> (Linux destgd0h411156 2.6.32-358.23.2.el6.x86_64 #1 SMP Wed Oct 16
>> 18:37:12 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux).
>>
>> I simply ran "configure --prefix=..." and then "make", but make fails
>> with linker errors for temacs:
> [...]
>> xsettings.o: In function `something_changed_gsettingsCB':
>> /opt/kze/emacs-24.3/src/xsettings.c:215: undefined reference to `g_settings_get_value'
>
> Please see my explanation here:
>
> http://lists.gnu.org/archive/html/help-gnu-emacs/2014-03/msg00503.html
>
> Red Hat has taken the unusual step of ripping out the gsettings related
> parts of their glib library. So they have something that advertises
> itself as gio 2.26.1, but does not include gsettings.
>
> I think this is an odd thing to do. I encourage anyone with a RH
> subscription to report it as a bug against glib2-devel.
>
> In Emacs, you can work around it by using configure --without-gsettings.
>
> But Emacs should add a configure test to check that gsettings is really
> present. I tried to do this by simply testing for gio/gsettings.h, but
> sadly you can't include that header directly, it throws an error if not
> included via gio/gio.h.
>
>

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Glenn Morris]

Jan Djärv wrote:

> I have added a configure check for this in the trunk.

Thank you. I think it should be in the emacs-24 branch. What do you think?

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Jan D.]

Hello.

> 29 mar 2014 kl. 20:38 skrev Glenn Morris <rgm@gnu.org>:
> 
> Jan Djärv wrote:
> 
>> I have added a configure check for this in the trunk.
> 
> Thank you. I think it should be in the emacs-24 branch. What do you think?

There is a workaround (--without-gsettings) so it is not critical. It only affects RHEL/CentOS. It is not a regression either.  So no.

     Jan D.

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Glenn Morris]

"Jan D." wrote:

>> Thank you. I think it should be in the emacs-24 branch. What do you think?
>
> There is a workaround (--without-gsettings) so it is not critical. It only affects RHEL/CentOS. It is not a regression either.  So no.

Well, emacs-24 is not in the "regression only" stage yet.
It hasn't even started pretesting.
By the time 24.5 is out, RHEL7 probably will be, and this won't even be
relevant any more.

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Jan Djärv]

Hello.

2014-03-30 00:26, Glenn Morris skrev:
> "Jan D." wrote:
>
>>> Thank you. I think it should be in the emacs-24 branch. What do you think?
>>
>> There is a workaround (--without-gsettings) so it is not critical. It only affects RHEL/CentOS. It is not a regression either.  So no.
>
> Well, emacs-24 is not in the "regression only" stage yet.
> It hasn't even started pretesting.
> By the time 24.5 is out, RHEL7 probably will be, and this won't even be
> relevant any more.
>

Ok, I backported it to emacs-24.

	Jan D.

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Glenn Morris]

Thanks. Potentially dumb question:
Do you not have to temporarily add GSETTINGS_CFLAGS etc to CFLAGS while
you test for gsettings?

Also, isn't this double "$$" wrong:

   if test "$$GSETTINGS_COMPILES" = "yes"; then

bug#17118: 24.3 build on Centos 6.5: undefined ref to `g_settings_get_value

[Jan D.]

Hello.

Glenn Morris skrev 2014-03-30 20:32:
>
> Thanks. Potentially dumb question:
> Do you not have to temporarily add GSETTINGS_CFLAGS etc to CFLAGS while
> you test for gsettings?
>
> Also, isn't this double "$$" wrong:
>
>     if test "$$GSETTINGS_COMPILES" = "yes"; then
>

My mistake.  I have fixed these.  But when I fixed it, I did it in the 
trunk first.  Maybe I should take a vacation...

	Jan D.