expr: add constructor for boolean expressions

Also add a 'bool set' to the ExprDef union, instead of using 'ival' as a
bool.

Signed-off-by: Ran Benita <ran234@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/xkbcomp/ast.h b/src/xkbcomp/ast.h
index d94550f..3e9f517 100644
--- a/src/xkbcomp/ast.h
+++ b/src/xkbcomp/ast.h
@@ -188,7 +188,7 @@ typedef struct _Expr {
         struct _Expr *child;
         xkb_atom_t ident;
         xkb_atom_t str;
-        unsigned uval;
+        bool set;
         int ival;
         xkb_atom_t keyName;
     } value;