-# pty.m4 serial 5
-dnl Copyright (C) 2010 Free Software Foundation, Inc.
+# pty.m4 serial 9
+dnl Copyright (C) 2010-2011 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 with or without modifications, as long as this notice is preserved.
AC_SUBST([PTY_LIB])
])
-AC_DEFUN([gl_FORKPTY],
+AC_DEFUN([gl_FUNC_FORKPTY],
[
AC_REQUIRE([gl_PTY_LIB])
AC_REQUIRE([gl_PTY_H])
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
fi
])
-AC_DEFUN([gl_OPENPTY],
+AC_DEFUN([gl_FUNC_OPENPTY],
[
AC_REQUIRE([gl_PTY_LIB])
AC_REQUIRE([gl_PTY_H])
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
if test $gl_cv_func_openpty_const != yes; then
REPLACE_OPENPTY=1
AC_LIBOBJ([openpty])
+ AC_DEFINE([HAVE_OPENPTY], [1],
+ [Define to 1 if the system has the 'openpty' function.])
fi
else
dnl The system does not have openpty.
[
AC_REQUIRE([gl_PTY_LIB])
- AC_CHECK_FUNCS_ONCE([login_tty])
+ gl_saved_libs="$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