Index: generic/nsf.c
===================================================================
diff -u -rf006c511460315e7ccf62912cd0d482fa0c32671 -rb33c80a289d2b5bbf8727c4f30cbafbdddb1f9c1
--- generic/nsf.c	(.../nsf.c)	(revision f006c511460315e7ccf62912cd0d482fa0c32671)
+++ generic/nsf.c	(.../nsf.c)	(revision b33c80a289d2b5bbf8727c4f30cbafbdddb1f9c1)
@@ -2019,7 +2019,7 @@
   } else if (methodObj->typePtr == Nsf_OT_tclCmdNameType) {
     containsSpace = 0;
   } else {
-    containsSpace = strchr(methodName, ' ') > 0;
+    containsSpace = strchr(methodName, ' ') != NULL;
   }
 
 #if !defined(NDBUG)