[gtkmm] Fix the generation of reference documentation

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 5381faff0cb5f1651eabc392ec59380250f7e53b
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Sat Sep 8 10:35:10 2018 +0200

    Fix the generation of reference documentation
    
    * docs/Makefile.am: Include the filelist.gmake.am files.
    * gdk/gdkmm/filelist.gmake.am:
    * gdk/src/filelist.gmake.am:
    * gtk/gtkmm/filelist.gmake.am:
    * gtk/src/filelist.gmake.am: The search path of the filelist.am files
    start from $(top_srcdir) instead of $(srcdir). Necessary when the
    filelist.gmake.am files are included in docs/Makefile.am.

 docs/Makefile.am            | 8 ++++----
 gdk/gdkmm/filelist.gmake.am | 2 +-
 gdk/src/filelist.gmake.am   | 2 +-
 gtk/gtkmm/filelist.gmake.am | 2 +-
 gtk/src/filelist.gmake.am   | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/docs/Makefile.am b/docs/Makefile.am
index 7c343e39..bf76d449 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -15,10 +15,10 @@
 ## You should have received a copy of the GNU Lesser General Public License
 ## along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
-include $(top_srcdir)/gdk/src/filelist.am
-include $(top_srcdir)/gdk/gdkmm/filelist.am
-include $(top_srcdir)/gtk/src/filelist.am
-include $(top_srcdir)/gtk/gtkmm/filelist.am
+include $(top_srcdir)/gdk/src/filelist.gmake.am
+include $(top_srcdir)/gdk/gdkmm/filelist.gmake.am
+include $(top_srcdir)/gtk/src/filelist.gmake.am
+include $(top_srcdir)/gtk/gtkmm/filelist.gmake.am
 
 gdkmm_files_h = $(gdkmm_files_built_h) $(filter-out wrap_init.h,$(gdkmm_files_extra_h))
 gtkmm_files_h = $(gtkmm_files_built_h) $(filter-out wrap_init.h,$(gtkmm_files_extra_h))
diff --git a/gdk/gdkmm/filelist.gmake.am b/gdk/gdkmm/filelist.gmake.am
index cdd158dd..fd235266 100644
--- a/gdk/gdkmm/filelist.gmake.am
+++ b/gdk/gdkmm/filelist.gmake.am
@@ -1,5 +1,5 @@
 ## This file is part of gtkmm.
 
-include $(srcdir)/filelist.am
+include $(top_srcdir)/gdk/gdkmm/filelist.am
 
 gdkmm_files_built_ph = $(patsubst %.hg,private/%_p.h,$(gdkmm_files_used_hg))
diff --git a/gdk/src/filelist.gmake.am b/gdk/src/filelist.gmake.am
index 48eb66c4..7aed9d07 100644
--- a/gdk/src/filelist.gmake.am
+++ b/gdk/src/filelist.gmake.am
@@ -1,6 +1,6 @@
 # This file is part of gtkmm
 
-include $(srcdir)/../src/filelist.am
+include $(top_srcdir)/gdk/src/filelist.am
 
 if DISABLE_DEPRECATED_API
 gdkmm_files_used_hg = $(gdkmm_files_any_hg)
diff --git a/gtk/gtkmm/filelist.gmake.am b/gtk/gtkmm/filelist.gmake.am
index e7ada986..deb7c371 100644
--- a/gtk/gtkmm/filelist.gmake.am
+++ b/gtk/gtkmm/filelist.gmake.am
@@ -1,6 +1,6 @@
 ## This file is part of gtkmm.
 
-include $(srcdir)/filelist.am
+include $(top_srcdir)/gtk/gtkmm/filelist.am
 
 if DISABLE_DEPRECATED_API
 gtkmm_files_extra_cc = $(gtkmm_files_extra_any_cc)
diff --git a/gtk/src/filelist.gmake.am b/gtk/src/filelist.gmake.am
index 47590de8..cbae4730 100644
--- a/gtk/src/filelist.gmake.am
+++ b/gtk/src/filelist.gmake.am
@@ -1,6 +1,6 @@
 ## This file is part of gtkmm.
 
-include $(srcdir)/../src/filelist.am
+include $(top_srcdir)/gtk/src/filelist.am
 
 if HOST_WINDOWS_NATIVE
 gtkmm_files_arch_hg =