diff --git a/bin/makefile-darwin.386-x b/bin/makefile-darwin.386-x
index bd960d3..3568eb8 100755
--- a/bin/makefile-darwin.386-x
+++ b/bin/makefile-darwin.386-x
@@ -48,5 +48,5 @@ $(OBJECTDIR)xc.o:      $(SRCDIR)xc.c $(INCDIR)lispemul.h  $(INCDIR)emlglob.h \
 	$(INCDIR)initatms.h  $(INCDIR)gc.h  \
 	$(INCDIR)arith.h $(INCDIR)stream.h \
 	$(INCDIR)tos1defs.h  $(INCDIR)tosret.h \
-	$(INCDIR)tosfns.h  $(INCDIR)inlineC.h $(INCDIR)car-cdr.h $(INCDIR)conspage.h
+	$(INCDIR)tosfns.h  $(INCDIR)inlineC.h $(INCDIR)car-cdr.h $(INCDIR)conspage.h $(INCDIR)llstk.h
 	$(CC) $(DISPRFLAGS) -UOPDISP  $(SRCDIR)xc.c -I$(INCDIR) -o $(OBJECTDIR)xc.o
diff --git a/bin/makefile-tail b/bin/makefile-tail
index ee06f2f..2305d23 100755
--- a/bin/makefile-tail
+++ b/bin/makefile-tail
@@ -521,7 +521,7 @@ $(OBJECTDIR)gcarray.o :  $(SRCDIR)gcarray.c  $(REQUIRED-INCS) $(INCDIR)lispemul.
 
 $(OBJECTDIR)gcfinal.o :  $(SRCDIR)gcfinal.c  $(REQUIRED-INCS) $(INCDIR)lispemul.h  \
 	 $(INCDIR)lsptypes.h  $(INCDIR)address.h \
-	 $(INCDIR)adr68k.h  $(INCDIR)lspglob.h  $(INCDIR)stack.h \
+	 $(INCDIR)adr68k.h  $(INCDIR)lspglob.h  $(INCDIR)stack.h  $(INCDIR)llstk.h\
 	 $(INCDIR)cell.h  $(INCDIR)ifpage.h  $(INCDIR)gc.h \
 	 $(INCDIR)array.h
 	$(CC) $(RFLAGS) $(SRCDIR)gcfinal.c $(INLINE) -o $(OBJECTDIR)gcfinal$(OEXT)
@@ -574,7 +574,7 @@ $(OBJECTDIR)gvar2.o :  $(SRCDIR)gvar2.c  $(REQUIRED-INCS) $(INCDIR)lispemul.h  \
 
 $(OBJECTDIR)hardrtn.o :  $(SRCDIR)hardrtn.c  $(REQUIRED-INCS) $(INCDIR)lispemul.h  \
 	 $(INCDIR)lspglob.h  $(INCDIR)adr68k.h \
-	 $(INCDIR)cell.h $(INCDIR)stack.h  $(INCDIR)return.h \
+	 $(INCDIR)cell.h $(INCDIR)stack.h $(INCDIR)llstk.h  $(INCDIR)return.h \
 	 $(INCDIR)emlglob.h
 	$(CC) $(RFLAGS) $(SRCDIR)hardrtn.c $(INLINE) -o $(OBJECTDIR)hardrtn$(OEXT)
 
@@ -628,7 +628,7 @@ $(OBJECTDIR)lsthandl.o :  $(SRCDIR)lsthandl.c  $(REQUIRED-INCS) $(INCDIR)lispemu
 	 $(INCDIR)cell.h $(INCDIR)car-cdr.h
 	$(CC) $(RFLAGS) $(SRCDIR)lsthandl.c $(INLINE) -o $(OBJECTDIR)lsthandl$(OEXT)
 
-$(OBJECTDIR)llstk.o :  $(SRCDIR)llstk.c  $(REQUIRED-INCS) $(INCDIR)lispemul.h  \
+$(OBJECTDIR)llstk.o :  $(SRCDIR)llstk.c $(INCDIR)llstk.h $(REQUIRED-INCS) $(INCDIR)lispemul.h  \
 	 $(INCDIR)lispmap.h  $(INCDIR)adr68k.h \
 	 $(INCDIR)address.h  $(INCDIR)lsptypes.h  $(INCDIR)initatms.h \
 	 $(INCDIR)lspglob.h  $(INCDIR)emlglob.h  $(INCDIR)cell.h \
@@ -764,7 +764,7 @@ $(OBJECTDIR)unixcomm.o :  $(SRCDIR)unixcomm.c  $(REQUIRED-INCS) $(INCDIR)lispemu
 $(OBJECTDIR)uraid.o :  $(SRCDIR)uraid.c  $(REQUIRED-INCS) $(INCDIR)lispemul.h  \
 	 $(INCDIR)address.h  $(INCDIR)adr68k.h \
 	 $(INCDIR)lsptypes.h  $(INCDIR)lispmap.h  $(INCDIR)emlglob.h \
-	 $(INCDIR)lspglob.h  $(INCDIR)cell.h  $(INCDIR)stack.h \
+	 $(INCDIR)lspglob.h  $(INCDIR)cell.h  $(INCDIR)stack.h $(INCDIR)llstk.h \
 	 $(INCDIR)debug.h $(INCDIR)uraid.h
 	$(CC) $(RFLAGS) $(SRCDIR)uraid.c $(INLINE) -o $(OBJECTDIR)uraid$(OEXT)
 
diff --git a/inc/llstk.h b/inc/llstk.h
new file mode 100644
index 0000000..6e44f87
--- /dev/null
+++ b/inc/llstk.h
@@ -0,0 +1,11 @@
+DLword *freestackblock(DLword n, StackWord *start68k, int align);
+int do_stackoverflow(int incallp);
+void decusecount68k(register FX *frame68k);
+void flip_cursorbar(int n);
+void blt(register DLword *dest68k, register DLword *source68k, int nw);
+void stack_check(StackWord *start68k);
+void walk_stack(StackWord *start68k);
+void quick_stack_check(void);
+void check_FX(FX *fx68k);
+void check_BF(Bframe *bf68k);
+int check_stack_rooms(FX *fx68k);
diff --git a/src/gcfinal.c b/src/gcfinal.c
index 3ea1565..3286b72 100644
--- a/src/gcfinal.c
+++ b/src/gcfinal.c
@@ -54,6 +54,7 @@ static char *id = "$Id: gcfinal.c,v 1.3 1999/05/31 23:35:31 sybalsky Exp $ Copyr
 #include "adr68k.h"
 #include "lspglob.h"
 #include "stack.h"
+#include "llstk.h"
 #include "cell.h"
 #include "ifpage.h"
 #include "gc.h"
diff --git a/src/hardrtn.c b/src/hardrtn.c
index 5eade81..4cfa812 100644
--- a/src/hardrtn.c
+++ b/src/hardrtn.c
@@ -37,6 +37,7 @@ static char *id = "$Id: hardrtn.c,v 1.4 2001/12/24 01:09:02 sybalsky Exp $ Copyr
 #include "emlglob.h"
 #include "cell.h"
 #include "stack.h"
+#include "llstk.h"
 #include "return.h"
 
 #define MAKE_FXCOPY(fx68k)                                                                   \
diff --git a/src/llstk.c b/src/llstk.c
index 8c402f5..193ece3 100644
--- a/src/llstk.c
+++ b/src/llstk.c
@@ -36,11 +36,12 @@ static char *id = "$Id: llstk.c,v 1.5 2001/12/26 22:17:03 sybalsky Exp $ Copyrig
 #include "emlglob.h"
 #include "cell.h"
 #include "stack.h"
+#include "llstk.h"
 #include "return.h"
 
 extern int extended_frame;
 
-void blt(register DLword *dest68k, register DLword *source68k, int nw);
+static DLword *extendstack(void);
 
 /******************************************************************/
 /*
@@ -49,12 +50,10 @@ void blt(register DLword *dest68k, register DLword *source68k, int nw);
         Edited by :     Take(March 14, 1988)
 */
 /******************************************************************/
-LispPTR moveframe(register FX *oldfx68k) {
+static LispPTR moveframe(register FX *oldfx68k) {
   register int size;
   register DLword *next68k;
   register DLword *new68k;
-  DLword *freestackblock(DLword n, StackWord * start68k, int align);
-  DLword *extendstack(void);
   int nametbl_on_stk = NIL;
   int at_eos = NIL;
 
@@ -252,7 +251,7 @@ int do_stackoverflow(int incallp) {
 
 */
 /******************************************************************/
-DLword *extendstack(void) {
+static DLword *extendstack(void) {
   register LispPTR easp;
   register LispPTR scanptr;
 
diff --git a/src/uraid.c b/src/uraid.c
index 06479e7..eca9763 100644
--- a/src/uraid.c
+++ b/src/uraid.c
@@ -82,6 +82,7 @@ extern int Win_security_p;
 #include "emlglob.h"
 #include "cell.h"
 #include "stack.h"
+#include "llstk.h"
 #include "ifpage.h"
 #include "debug.h"
 #include "devconf.h"
diff --git a/src/xc.c b/src/xc.c
index e5bb114..157655e 100644
--- a/src/xc.c
+++ b/src/xc.c
@@ -45,6 +45,7 @@ static char *id = "$Id: xc.c,v 1.4 2001/12/26 22:17:06 sybalsky Exp $ Copyright
 #include "address.h"
 #include "adr68k.h"
 #include "stack.h"
+#include "llstk.h"
 #include "dbprint.h"
 
 #include "lspglob.h"
diff --git a/src/xc.c.orig b/src/xc.c.orig
index d145d80..aa85845 100644
--- a/src/xc.c.orig
+++ b/src/xc.c.orig
@@ -50,6 +50,7 @@ static char *id = "$Id: xc.c,v 1.3 1999/05/31 23:35:47 sybalsky Exp $ Copyright
 #include "address.h"
 #include "adr68k.h"
 #include "stack.h"
+#include "llstk.h"
 #include "dbprint.h"
 
 #include "lspglob.h"