gconfmm fails to build: error: template with C linkage

[barracuda156]

In file included from /opt/local/include/glib-2.0/glib/glib-typeof.h:43,
                 from /opt/local/include/glib-2.0/glib/gatomic.h:30,
                 from /opt/local/include/glib-2.0/glib/gthread.h:34,
                 from /opt/local/include/glib-2.0/glib/gasyncqueue.h:34,
                 from /opt/local/include/glib-2.0/glib.h:34,
                 from /opt/local/include/glib-2.0/gobject/gbinding.h:30,
                 from /opt/local/include/glib-2.0/glib-object.h:24,
                 from /opt/local/include/gconf/2/gconf/gconf-client.h:24,
                 from ../gconfmm/callback.h:27,
                 from callback.cc:22:
/opt/local/include/gcc13/c++/type_traits:44:3: error: template with C linkage
   44 |   template<typename _Tp>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:61:3: error: template with C linkage
   61 |   template<typename _Tp, _Tp __v>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:89:3: error: template with C linkage
   89 |   template<bool __v>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:97:3: error: template with C linkage
   97 |   template<bool __v>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:105:3: error: template with C linkage
  105 |   template<bool, typename _Tp = void>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:110:3: error: template with C linkage
  110 |   template<typename _Tp>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:115:3: error: template with C linkage
  115 |   template<bool _Cond, typename _Tp = void>
      |   ^~~~~~~~
../gconfmm/callback.h:25:1: note: 'extern "C"' linkage started here
   25 | extern "C"
      | ^~~~~~~~~~
/opt/local/include/gcc13/c++/type_traits:118:3: error: template with C linkage
  118 |   template<bool>
      |   ^~~~~~~~
. . .

[ryandesign (Ryan Carsten Schmidt)]

How did you even get this far? On buildbot workers it fails before configure with:

Makefile.am:26: error: ENABLE_DOCUMENTATION does not appear in AM_CONDITIONAL

[barracuda156]

Replying to ryandesign:

How did you even get this far? On buildbot workers it fails before configure with:

Makefile.am:26: error: ENABLE_DOCUMENTATION does not appear in AM_CONDITIONAL

Maybe dependency on autoconf_archive is needed but not declared? And I have it installed.

[ryandesign (Ryan Carsten Schmidt)]

In a059ab638700dd2bef5ac9f79196d72ffef6a83f/macports-ports (master):

gconfmm: Use mm-common and autogen.sh

Add missing mm-common dependency (which caused "Makefile.am:26: error:
ENABLE_DOCUMENTATION does not appear in AM_CONDITIONAL") and use the
provided autogen.sh script.

See: #69964

Also remove redundant "platforms darwin", use path:-based dependency for
pkgconfig, and use the usual checksum types.

[ryandesign (Ryan Carsten Schmidt)]

Found ​a similar Arch Linux bug report which led to ​a glib bug report since it was a glib change that caused this which led to ​a rejected glib merge request to fix it because it was decided that each project was doing it wrong and needed to fix it individually and finally to ​the Fedora patch for this problem in gconfmm since gconfmm is not being developed anymore.

[ryandesign (Ryan Carsten Schmidt)]

In 572b3fa745672b114ee00c2d4a4a4e9b3817bbe5/macports-ports (master):

gconfmm: Fix build with glib 2.67.3 and later

Closes: #69964