[gnome-sudoku] Require newer vala

[Michael Catanzaro <mcatanzaro src gnome org>]

commit f37cf5bad781c67c4f8361ae7a5c3e512c8a869b
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Mar 12 16:45:34 2017 -0500

    Require newer vala
    
    This ensures that distros do not attempt to build without the fix for
    bug #779955, as otherwise GNOME Sudoku is totally broken due to GTK+
    drawing errors caused by an uninitialized PangoLayout.
    
    With apologies to Jeremy from Ubuntu, who will not like this. ;) Note
    that this bug was introduced after vala 0.34, so distros that are
    sticking with vala 0.34 can safely revert this.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e64a2ed..061df8d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@ AC_PROG_CXX
 
 AX_CXX_COMPILE_STDCXX_11([noext], [mandatory])
 
-AM_PROG_VALAC([0.27.1.30])
+AM_PROG_VALAC([0.35.7.24])
 AM_PROG_CC_C_O
 
 LT_PREREQ([2.4])