diff --git a/autoconf/configure.in b/autoconf/configure.in
index aedcb4b..34219ce 100644
--- a/autoconf/configure.in
+++ b/autoconf/configure.in
@@ -41,6 +41,7 @@ AC_CHECK_FUNCS(fdatasync)
 AC_CHECK_FUNCS(fpathconf sysconf posix_memalign)
 AC_CHECK_HEADERS(limits.h)
 AC_CHECK_HEADERS(wctype.h)
+AC_CHECK_HEADERS(termios.h)
 
 AC_ARG_ENABLE(debugging,
   [  --enable-debugging      compile with debugging support],
diff --git a/autoconf/header.in b/autoconf/header.in
index b65c481..426b16e 100644
--- a/autoconf/header.in
+++ b/autoconf/header.in
@@ -108,6 +108,9 @@
 /* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 
+/* Define to 1 if you have the <termios.h> header file. */
+#undef HAVE_TERMIOS_H
+
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H