diff --git a/form/fty_alnum.c b/form/fty_alnum.c
index cda23dc..854dc33 100644
--- a/form/fty_alnum.c
+++ b/form/fty_alnum.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -34,7 +35,7 @@
 
 #include "form.priv.h"
 
-MODULE_ID("$Id: fty_alnum.c,v 1.24 2010/01/23 21:14:36 tom Exp $")
+MODULE_ID("$Id: fty_alnum.c,v 1.29 2020/12/12 01:15:37 tom Exp $")
 
 #define thisARG alnumARG
 
@@ -55,7 +56,7 @@
 static void *
 Generic_This_Type(void *arg)
 {
-  thisARG *argp = (thisARG *) 0;
+  thisARG *argp = (thisARG *)0;
 
   if (arg)
     {
@@ -139,7 +140,7 @@
 Check_This_Character(int c, const void *argp GCC_UNUSED)
 {
 #if USE_WIDEC_SUPPORT
-  if (iswalnum((wint_t) c))
+  if (iswalnum((wint_t)c))
     return TRUE;
 #endif
   return (isalnum(UChar(c)) ? TRUE : FALSE);
@@ -185,14 +186,14 @@
 #endif
 };
 
-NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALNUM = &typeTHIS;
+FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM = &typeTHIS;
 
 #if NCURSES_INTEROP_FUNCS
 /* The next routines are to simplify the use of ncurses from
-   programming languages with restictions on interop with C level
+   programming languages with restrictions on interop with C level
    constructs (e.g. variable access or va_list + ellipsis constructs)
 */
-NCURSES_EXPORT(FIELDTYPE *)
+FORM_EXPORT(FIELDTYPE *)
 _nc_TYPE_ALNUM(void)
 {
   return TYPE_ALNUM;