[pangomm] Fix the build with --enable-warnings=fatal.

[Murray Cumming <murrayc src gnome org>]

commit 84021072097e9177ce8e60739867e86b0a9822a3
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Jan 7 22:30:53 2011 +0100

    Fix the build with --enable-warnings=fatal.
    
    	* configure.ac: Add no-long-long to avoid a warning caused by a newer glib.
    	Also avoid use of deprecated GLIBMM API and make sure that GSEAL is defined.

 ChangeLog    |    7 +++++++
 configure.ac |    4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index d282827..5d186c4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2011-01-07  Murray Cumming  <murrayc murrayc com>
+
+	Fix the build with --enable-warnings=fatal.
+
+	* configure.ac: Add no-long-long to avoid a warning caused by a newer glib.
+	Also avoid use of deprecated GLIBMM API and make sure that GSEAL is defined.
+
 2010-12-09  Murray Cumming  <murrayc murrayc com>
 
 	Include convert_glibmm.m4 instead of convert_gtkmm.m4. 
diff --git a/configure.ac b/configure.ac
index 09fd688..8cbddb7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,8 +57,8 @@ MM_ARG_WITH_TAGFILE_DOC([cairomm-1.0.tag], [cairomm-1.0])
 AC_LANG([C++])
 MM_ARG_ENABLE_WARNINGS([PANGOMM_WXXFLAGS],
                        [-Wall],
-                       [-pedantic -Wall -Wextra],
-                       [G PANGO])
+                       [-pedantic -Wall -Wextra -Wno-long-long -DGSEAL_ENABLE],
+                       [G PANGO GLIBMM])
 
 AC_CONFIG_FILES([Makefile
                  tools/Makefile