diff --git a/sys/amd64/amd64/fpu.c b/sys/amd64/amd64/fpu.c
index 8f274db7854..55aa8ad0815 100644
--- a/sys/amd64/amd64/fpu.c
+++ b/sys/amd64/amd64/fpu.c
@@ -32,12 +32,14 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)npx.c	7.2 (Berkeley) 5/12/91
- *	$Id: npx.c,v 1.26 1995/12/10 13:39:02 phk Exp $
+ *	$Id: npx.c,v 1.27 1995/12/19 14:30:50 davidg Exp $
  */
 
 #include "npx.h"
 #if NNPX > 0
 
+#include "math_emulate.h"
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
diff --git a/sys/amd64/isa/npx.c b/sys/amd64/isa/npx.c
index 8f274db7854..55aa8ad0815 100644
--- a/sys/amd64/isa/npx.c
+++ b/sys/amd64/isa/npx.c
@@ -32,12 +32,14 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)npx.c	7.2 (Berkeley) 5/12/91
- *	$Id: npx.c,v 1.26 1995/12/10 13:39:02 phk Exp $
+ *	$Id: npx.c,v 1.27 1995/12/19 14:30:50 davidg Exp $
  */
 
 #include "npx.h"
 #if NNPX > 0
 
+#include "math_emulate.h"
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
diff --git a/sys/conf/options.i386 b/sys/conf/options.i386
index 66e336e95b0..869a638dfa6 100644
--- a/sys/conf/options.i386
+++ b/sys/conf/options.i386
@@ -1 +1,3 @@
 USER_LDT
+MATH_EMULATE		math_emulate.h
+GPL_MATH_EMULATE	math_emulate.h
diff --git a/sys/i386/conf/options.i386 b/sys/i386/conf/options.i386
index 66e336e95b0..869a638dfa6 100644
--- a/sys/i386/conf/options.i386
+++ b/sys/i386/conf/options.i386
@@ -1 +1,3 @@
 USER_LDT
+MATH_EMULATE		math_emulate.h
+GPL_MATH_EMULATE	math_emulate.h
diff --git a/sys/i386/isa/npx.c b/sys/i386/isa/npx.c
index 8f274db7854..55aa8ad0815 100644
--- a/sys/i386/isa/npx.c
+++ b/sys/i386/isa/npx.c
@@ -32,12 +32,14 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)npx.c	7.2 (Berkeley) 5/12/91
- *	$Id: npx.c,v 1.26 1995/12/10 13:39:02 phk Exp $
+ *	$Id: npx.c,v 1.27 1995/12/19 14:30:50 davidg Exp $
  */
 
 #include "npx.h"
 #if NNPX > 0
 
+#include "math_emulate.h"
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>