diff --git a/bochs/config.h.in b/bochs/config.h.in
index 80a358fbf..09f34d30e 100644
--- a/bochs/config.h.in
+++ b/bochs/config.h.in
@@ -197,6 +197,7 @@
 #define BX_HAVE_GETTIMEOFDAY 0
 #define BX_HAVE_REALTIME_USEC (BX_HAVE_GETTIMEOFDAY || defined(WIN32))
 #define BX_HAVE_MKSTEMP 0
+#define BX_HAVE_SYS_MMAN_H 0
 
 // This turns on Roland Mainz's idle hack.  Presently it is specific to the X11
 // gui. If people try to enable it elsewhere, give a compile error after the
diff --git a/bochs/configure.in b/bochs/configure.in
index 92356036e..befca9c62 100644
--- a/bochs/configure.in
+++ b/bochs/configure.in
@@ -2,7 +2,7 @@ dnl // Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.50)
 AC_INIT(bochs.h)
-AC_REVISION([[$Id: configure.in,v 1.205 2003-05-04 12:57:16 cbothamy Exp $]])
+AC_REVISION([[$Id: configure.in,v 1.206 2003-05-06 20:15:31 cbothamy Exp $]])
 AC_CONFIG_HEADER(config.h)
 AC_CONFIG_HEADER(ltdlconf.h)
 
@@ -150,6 +150,7 @@ AC_CHECK_TYPE(socklen_t, AC_DEFINE(BX_HAVE_SOCKLEN_T), , [#include <sys/types.h>
 AC_CHECK_MEMBER(struct sockaddr_in.sin_len, AC_DEFINE(BX_HAVE_SOCKADDR_IN_SIN_LEN), , [#include <sys/socket.h>
 #include <netinet/in.h> ])
 AC_CHECK_FUNCS(mkstemp, AC_DEFINE(BX_HAVE_MKSTEMP))
+AC_CHECK_HEADER(sys/mman.h, AC_DEFINE(BX_HAVE_SYS_MMAN_H))
 
 dnl As of autoconf 2.53, the standard largefile test fails for Linux/gcc.
 dnl It does not put the largefiles arguments into CFLAGS, even though Linux/gcc