check for termios.h termio.h sgtty.h

Added MU_MAINTAINER_MODE.

@@ -11,6 +11,8 @@ AM_PROG_LIBTOOL
 AC_PROG_YACC
 AM_PROG_LEX
 
+MU_MAINTAINER_MODE
+ 
 dnl Check for arguments
 AC_ARG_ENABLE(pam,
  [  --disable-pam           disable pam],
@@ -67,8 +69,8 @@ AC_HEADER_STDC
 AC_HEADER_DIRENT
 AM_C_PROTOTYPES
 AC_CHECK_HEADERS(argp.h errno.h fcntl.h inttypes.h libgen.h limits.h malloc.h \
- paths.h shadow.h stdarg.h stdio.h stdlib.h string.h strings.h sys/file.h syslog.h \
- unistd.h termios.h)
+ paths.h shadow.h stdarg.h stdio.h stdlib.h string.h strings.h sys/file.h \
+ syslog.h termios.h termio.h sgtty.h unistd.h )
 
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST