[gnome-clocks] Bump vala requirement to reflect reality

[Paolo Borelli <pborelli src gnome org>]

commit 41b2949c6926197991e61d129f98a47035ee5f93
Author: Paolo Borelli <pborelli gnome org>
Date:   Fri Sep 6 08:22:25 2013 +0200

    Bump vala requirement to reflect reality

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e82639f..982b0b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AC_PROG_CC
 AC_PROG_CC_STDC
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
-AM_PROG_VALAC([0.20.1.19])
+AM_PROG_VALAC([0.21.1])
 
 # _NL_TIME_FIRST_WEEKDAY is an enum and not a define
 AC_MSG_CHECKING([for _NL_TIME_FIRST_WEEKDAY])