2
dnl Copyright (C) 2002-2003, 2005-2006, 2009 Free Software Foundation, Inc.
3
dnl This file is free software; the Free Software Foundation
4
dnl gives unlimited permission to copy and/or distribute it,
5
dnl with or without modifications, as long as this notice is preserved.
7
# Provide a getpass() function if the system doesn't have it.
8
AC_DEFUN([gl_FUNC_GETPASS],
10
AC_REPLACE_FUNCS([getpass])
11
AC_CHECK_DECLS_ONCE([getpass])
12
if test $ac_cv_func_getpass = no; then
17
# Provide the GNU getpass() implementation. It supports passwords of
18
# arbitrary length (not just 8 bytes as on HP-UX).
19
AC_DEFUN([gl_FUNC_GETPASS_GNU],
21
AC_CHECK_DECLS_ONCE([getpass])
22
dnl TODO: Detect when GNU getpass() is already found in glibc.
25
dnl We must choose a different name for our function, since on ELF systems
26
dnl an unusable getpass() in libc.so would override our getpass() if it is
27
dnl compiled into a shared library.
28
AC_DEFINE([getpass], [gnu_getpass],
29
[Define to a replacement function name for getpass().])
32
# Prerequisites of lib/getpass.c.
33
AC_DEFUN([gl_PREREQ_GETPASS], [
34
AC_CHECK_HEADERS_ONCE([stdio_ext.h termios.h])
35
AC_CHECK_FUNCS_ONCE([__fsetlocking tcgetattr tcsetattr])
36
AC_CHECK_DECLS([__fsetlocking],,,
39
#include <stdio_ext.h>
41
AC_CHECK_DECLS_ONCE([fflush_unlocked])
42
AC_CHECK_DECLS_ONCE([flockfile])
43
AC_CHECK_DECLS_ONCE([fputs_unlocked])
44
AC_CHECK_DECLS_ONCE([funlockfile])
45
AC_CHECK_DECLS_ONCE([putc_unlocked])