diff --git a/bochs/configure b/bochs/configure
index fc8a2fdb6..29c0460d0 100755
--- a/bochs/configure
+++ b/bochs/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: configure.in,v 1.205 2003/05/04 12:57:16 cbothamy Exp .
+# From configure.in Id: configure.in,v 1.206 2003/05/06 20:15:31 cbothamy Exp .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53.
 #
@@ -14623,6 +14623,115 @@ _ACEOF
 fi
 done
 
+if test "${ac_cv_header_sys_mman_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for sys/mman.h" >&5
+echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
+if test "${ac_cv_header_sys_mman_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
+echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking sys/mman.h usability" >&5
+echo $ECHO_N "checking sys/mman.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <sys/mman.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking sys/mman.h presence" >&5
+echo $ECHO_N "checking sys/mman.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <sys/mman.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  egrep -v '^ *\+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: sys/mman.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: sys/mman.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: sys/mman.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: sys/mman.h: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for sys/mman.h" >&5
+echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
+if test "${ac_cv_header_sys_mman_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_sys_mman_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
+echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
+
+fi
+if test $ac_cv_header_sys_mman_h = yes; then
+  cat >>confdefs.h <<\_ACEOF
+#define BX_HAVE_SYS_MMAN_H 1
+_ACEOF
+
+fi
+
+
 
 # Check whether --enable-largefile or --disable-largefile was given.
 if test "${enable_largefile+set}" = set; then