[libgda/LIBGDA_5.2] Fixed behavior of --enable-vala

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 55ff62f2288b3d27c9d4e0ccf0dcae04db94a173
Author: Daniel Espinosa Ortiz <esodan gmail com>
Date:   Fri Feb 8 13:54:57 2019 -0600

    Fixed behavior of --enable-vala

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index ce761503b..4a5c9ea8b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -507,7 +507,7 @@ dnl ******************************
 
 AC_ARG_ENABLE([vala],
     AS_HELP_STRING([--enable-vala[=@<:@no/auto/yes@:>@]], [Generate Vala bindings and extensions]),
-    [enable_vala=yes],[enable_vala=no])
+    [enable_vala=$enableval],[enable_vala=no])
 
 AC_PATH_PROG([VALAC], [valac], [no])