[pangomm] configure.ac: Require the latest glibmm.

[Murray Cumming <murrayc src gnome org>]

commit 19da7d414d823065799773c1a67da4d31b3d3c8e
Author: Murray Cumming <murrayc murrayc com>
Date:   Sat Aug 22 14:05:34 2015 +0200

    configure.ac: Require the latest glibmm.
    
    To use the latest gmmproc, which generates more move operations,
    and to have the latest Glib::Object/ObjectBase/Interface which have
    move operations that those generated move operations call.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d851aca..226619e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -47,7 +47,7 @@ MM_AX_CXX_COMPILE_STDCXX_11([noext],[mandatory])
 AC_DISABLE_STATIC
 LT_INIT([win32-dll])
 
-AC_SUBST([PANGOMM_MODULES], ['glibmm-2.4 >= 2.45.31 cairomm-1.0 >= 1.2.2 pangocairo >= 1.36.0'])
+AC_SUBST([PANGOMM_MODULES], ['glibmm-2.4 >= 2.45.52 cairomm-1.0 >= 1.2.2 pangocairo >= 1.36.0'])
 PKG_CHECK_MODULES([PANGOMM], [$PANGOMM_MODULES])
 
 MM_PKG_CONFIG_SUBST([GTHREAD_CFLAGS], [--cflags-only-other gthread-2.0])