Compile with builtin ODBC in GTK+ ANSI mode

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33151 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/db.h

@@ -77,7 +77,11 @@
         #include "wx/isqlext.h"
         // Not available in v2.x of iODBC
         #ifndef __WXMSW__
-            typedef wxChar SQLTCHAR;
+          #if wxUSE_UNICODE
+          typedef wxChar SQLTCHAR;
+          #else
+          typedef UCHAR SQLTCHAR;
+          #endif
         #endif
     #else
         #include <sql.h>