-# getusershell.m4 serial 3
-dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+# getusershell.m4 serial 5
+dnl Copyright (C) 2002-2003, 2006, 2008-2010 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 with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_GETUSERSHELL],
[
- AC_REPLACE_FUNCS(getusershell)
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+
+ dnl Persuade glibc <unistd.h> to declare {get,set,end}usershell().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_REPLACE_FUNCS([getusershell])
if test $ac_cv_func_getusershell = no; then
- gl_PREREQ_GETUSERSHELL
+ HAVE_GETUSERSHELL=0
fi
])
-
-# Prerequisites of lib/getusershell.c.
-AC_DEFUN([gl_PREREQ_GETUSERSHELL], [
- AC_REQUIRE([AC_HEADER_STDC])
- AC_CHECK_FUNCS_ONCE(isascii)
-])