[gtkmm] Correct that atkmm dependency version.

[Murray Cumming <murrayc src gnome org>]

commit afad03437de95daf0e61d6a2b1a60fcd4bdbaa43
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Jun 23 10:02:31 2010 +0200

    Correct that atkmm dependency version.
    
    * configure.ac: Correct the required version of atkmm, because I
        corrected it in atkmm.

 ChangeLog    |    7 +++++++
 configure.ac |    2 +-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index a66357b..62da373 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2010-06-23  Murray Cumming  <murrayc murrayc com>
 
+	Correct that atkmm dependency version.
+
+	* configure.ac: Correct the required version of atkmm, because I
+    corrected it in atkmm.
+
+2010-06-23  Murray Cumming  <murrayc murrayc com>
+
 	Manually fix a .defs file to avoid a gmmproc warning.
 
 	* gdk/src/gdk_methods.defs: Fix a broken function-pointer parameter.
diff --git a/configure.ac b/configure.ac
index 11395b0..cc9d70d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -64,7 +64,7 @@ AS_IF([test "x$gtkmm_host_windows" = xyes],
 GTKMM_ARG_ENABLE_API_ATKMM
 
 AS_IF([test "x$gtkmm_enable_api_atkmm" != xno],
-      [GTKMM_MODULES="atkmm-1.6 >= 2.90.3 $GTKMM_MODULES"])
+      [GTKMM_MODULES="atkmm-1.6 >= 2.21.1 $GTKMM_MODULES"])
 AC_SUBST([GTKMM_MODULES])
 
 PKG_CHECK_MODULES([GDKMM], [$GDKMM_MODULES])