[atkmm] Require a recent glibmm.

[Murray Cumming <murrayc src gnome org>]

commit c80c9b43f61abda0cc96aea4b1701faf9f0870e0
Author: Murray Cumming <murrayc murrayc com>
Date:   Sun Nov 29 21:03:27 2015 +0100

    Require a recent glibmm.
    
    To use the latest gmmproc.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 79d85ea..e3a3fe8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,7 +50,7 @@ MM_AX_CXX_COMPILE_STDCXX_11([noext],[mandatory])
 AC_DISABLE_STATIC
 LT_INIT([win32-dll])
 
-AC_SUBST([ATKMM_MODULES], ['atk >= 1.18 glibmm-2.4 >= 2.46.1'])
+AC_SUBST([ATKMM_MODULES], ['atk >= 1.18 glibmm-2.4 >= 2.46.2'])
 PKG_CHECK_MODULES([ATKMM], [$ATKMM_MODULES])
 
 MM_PKG_CONFIG_SUBST([GTHREAD_CFLAGS], [--cflags-only-other gthread-2.0])