[baobab] Raise minimal vala version

[Stefano Facchini <sfacchini src gnome org>]

commit 105e9f26129f8fa3646990587ef7b87856445454
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Sun Sep 10 23:42:28 2017 +0200

    Raise minimal vala version
    
    https://bugzilla.gnome.org/show_bug.cgi?id=787419

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 63e52e2..e09feca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@ AM_SILENT_RULES([yes])
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
-AM_PROG_VALAC([0.25.1])
+AM_PROG_VALAC([0.38.0.11])
 PKG_PROG_PKG_CONFIG([0.22])
 
 ## don't rerun to this point if we abort