Accept frame param width/height of 0

* src/frame.c (tty_child_size_param): Accept values of 0.

(cherry picked from commit 23409041b135d7b89dcb010a7f22ce9c817d8c76)

diff --git a/src/frame.c b/src/frame.c
index d98dc830c869c2d9e098f29ec1ac5f8c2cd04414..52133b23879c1963c5a0b84de7289200199c3741 100644 (file)
--- a/src/frame.c
+++ b/src/frame.c
@@ -1443,7 +1443,7 @@ tty_child_size_param (struct frame *child, Lisp_Object key,
              val = make_fixnum (XFLOAT_DATA (val) * sz);
        }
 
-      if (FIXNUMP (val) && XFIXNUM (val) > 0)
+      if (FIXNUMP (val) && XFIXNUM (val) >= 0)
        return XFIXNUM (val);
     }
   return dflt;