--- src/sys/sys/systm.h	2007/01/12 03:05:49	1.63
+++ src/sys/sys/systm.h	2007/01/13 21:33:30	1.64
@@ -224,9 +224,17 @@ void	setstatclockrate (int hzrate);
 void	cons_lock(void); 
 void	cons_unlock(void);
 
+/*
+ * Kernel environment support functions and sundry.
+ */
 char	*kgetenv (const char *name);
-#define	testenv	kgetenv
-#define	freeenv(p)
+int	ksetenv(const char *name, const char *value);
+int	kunsetenv(const char *name);
+void	kfreeenv(char *env);
+int	ktestenv(const char *name);
+/* XXX TGEN Get rid of these compat defines. */
+#define	testenv	ktestenv
+#define	freeenv kfreeenv
 int	kgetenv_int (const char *name, int *data);
 int	kgetenv_string (const char *name, char *data, int size);
 int	kgetenv_quad (const char *name, quad_t *data);