Index: sys/dev/rt/if_rt.c
===================================================================
--- sys/dev/rt/if_rt.c
+++ sys/dev/rt/if_rt.c
@@ -38,6 +38,8 @@
 #include "if_rtvar.h"
 #include "if_rtreg.h"
 
+#include <sys/kenv.h>
+
 #include <net/if.h>
 #include <net/if_var.h>
 #include <net/if_arp.h>
Index: sys/geom/eli/g_eli.c
===================================================================
--- sys/geom/eli/g_eli.c
+++ sys/geom/eli/g_eli.c
@@ -32,6 +32,7 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/cons.h>
+#include <sys/kenv.h>
 #include <sys/kernel.h>
 #include <sys/linker.h>
 #include <sys/module.h>
Index: sys/kern/kern_environment.c
===================================================================
--- sys/kern/kern_environment.c
+++ sys/kern/kern_environment.c
@@ -46,6 +46,7 @@
 #include <sys/malloc.h>
 #include <sys/mutex.h>
 #include <sys/priv.h>
+#include <sys/kenv.h>
 #include <sys/kernel.h>
 #include <sys/systm.h>
 #include <sys/sysent.h>
Index: sys/kern/subr_hints.c
===================================================================
--- sys/kern/subr_hints.c
+++ sys/kern/subr_hints.c
@@ -31,6 +31,7 @@
 
 #include <sys/param.h>
 #include <sys/lock.h>
+#include <sys/kenv.h>
 #include <sys/kernel.h>
 #include <sys/malloc.h>
 #include <sys/mutex.h>
Index: sys/sys/kenv.h
===================================================================
--- sys/sys/kenv.h
+++ sys/sys/kenv.h
@@ -42,4 +42,18 @@
 #define KENV_MNAMELEN	128	/* Maximum name length (for the syscall) */
 #define KENV_MVALLEN	128	/* Maximum value length (for the syscall) */
 
+#ifdef _KERNEL
+/*
+ * Most of these variables should be const.
+ */
+extern bool dynamic_kenv;
+extern struct mtx kenv_lock;
+extern char *kern_envp;
+extern char *md_envp;
+extern char static_env[];
+extern char static_hints[];	/* by config for now */
+
+extern char **kenvp;
+#endif /* _KERNEL */
+
 #endif /* !_SYS_KENV_H_ */
Index: sys/sys/systm.h
===================================================================
--- sys/sys/systm.h
+++ sys/sys/systm.h
@@ -204,21 +204,7 @@
 })
 #define	SCHEDULER_STOPPED() SCHEDULER_STOPPED_TD(curthread)
 
-/*
- * XXX the hints declarations are even more misplaced than most declarations
- * in this file, since they are needed in one file (per arch) and only used
- * in two files.
- * XXX most of these variables should be const.
- */
 extern int osreldate;
-extern bool dynamic_kenv;
-extern struct mtx kenv_lock;
-extern char *kern_envp;
-extern char *md_envp;
-extern char static_env[];
-extern char static_hints[];	/* by config for now */
-
-extern char **kenvp;
 
 extern const void *zero_region;	/* address space maps to a zeroed page	*/