Index: generic/nsf.c
===================================================================
diff -u -r4b207001b05300e9c4bbe28da106abadfb7ca1fc -r052006de60c2348d7edf887bec3369c9f12f7d40
--- generic/nsf.c	(.../nsf.c)	(revision 4b207001b05300e9c4bbe28da106abadfb7ca1fc)
+++ generic/nsf.c	(.../nsf.c)	(revision 052006de60c2348d7edf887bec3369c9f12f7d40)
@@ -9242,7 +9242,7 @@
 static int
 CanInvokeMixinMethod(Tcl_Interp *interp, NsfObject *object, Tcl_Command cmd, NsfCmdList *cmdList) {
   int result = TCL_OK;
-  unsigned int cmdFlags = (unsigned int)Tcl_Command_flags(cmd);
+  unsigned long cmdFlags = (unsigned long)Tcl_Command_flags(cmd);
 
   nonnull_assert(interp != NULL);
   nonnull_assert(object != NULL);
@@ -13908,7 +13908,7 @@
    */
 
   if (likely(cmd && (flags & NSF_CM_IGNORE_PERMISSIONS) == 0u)) {
-    unsigned int cmdFlags = (unsigned int)Tcl_Command_flags(cmd);
+    unsigned long cmdFlags = (unsigned long)Tcl_Command_flags(cmd);
 
 #if !defined(NDEBUG)
     if (unlikely(((cmdFlags & NSF_CMD_CALL_PRIVATE_METHOD) != 0u)
@@ -16835,7 +16835,7 @@
 
     assert(cmd != NULL);
 
-    cmdFlags = (unsigned int)Tcl_Command_flags(cmd);
+    cmdFlags = (unsigned long)Tcl_Command_flags(cmd);
 
 #if defined(NSF_PROFILE)
     Tcl_GetTime(&trt);
@@ -23587,11 +23587,11 @@
 static int
 ProtectionMatches(int withCallprotection, Tcl_Command cmd) {
   int result, isProtected, isPrivate;
-  unsigned int cmdFlags;
+  unsigned long cmdFlags;
 
   nonnull_assert(cmd != NULL);
 
-  cmdFlags = (unsigned int)Tcl_Command_flags(cmd);
+  cmdFlags = (unsigned long)Tcl_Command_flags(cmd);
   isProtected = (cmdFlags & NSF_CMD_CALL_PROTECTED_METHOD) != 0u;
   isPrivate = (cmdFlags & NSF_CMD_CALL_PRIVATE_METHOD) != 0u;