-# pty.m4 serial 7
+# pty.m4 serial 9
dnl Copyright (C) 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl We assume that forkpty exists (possibly in libc, possibly in libutil)
dnl if and only if it is declared.
AC_CHECK_DECLS([forkpty],,, [[
+/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0. */
+#include <sys/types.h>
#if HAVE_PTY_H
# include <pty.h>
#endif
[gl_cv_func_forkpty_const],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
+/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0. */
+#include <sys/types.h>
#if HAVE_PTY_H
# include <pty.h>
#endif
dnl We assume that openpty exists (possibly in libc, possibly in libutil)
dnl if and only if it is declared.
AC_CHECK_DECLS([openpty],,, [[
+/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0. */
+#include <sys/types.h>
#if HAVE_PTY_H
# include <pty.h>
#endif
[gl_cv_func_openpty_const],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
+/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0. */
+#include <sys/types.h>
#if HAVE_PTY_H
# include <pty.h>
#endif
[
AC_REQUIRE([gl_PTY_LIB])
- AC_CHECK_FUNCS_ONCE([login_tty])
+ gl_saved_libs="$LIBS"
+ LIBS="$LIBS $PTY_LIB"
+ AC_CHECK_FUNCS([login_tty])
+ LIBS="$gl_saved_LIBS"
if test $ac_cv_func_login_tty = no; then
AC_LIBOBJ([login_tty])
fi