1# getpass.m4 serial 11 2dnl Copyright (C) 2002-2003, 2005-2006, 2009 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7# Provide a getpass() function if the system doesn't have it. 8AC_DEFUN([gl_FUNC_GETPASS], 9[ 10 AC_REPLACE_FUNCS([getpass]) 11 AC_CHECK_DECLS_ONCE([getpass]) 12 if test $ac_cv_func_getpass = no; then 13 gl_PREREQ_GETPASS 14 fi 15]) 16 17# Provide the GNU getpass() implementation. It supports passwords of 18# arbitrary length (not just 8 bytes as on HP-UX). 19AC_DEFUN([gl_FUNC_GETPASS_GNU], 20[ 21 AC_CHECK_DECLS_ONCE([getpass]) 22 dnl TODO: Detect when GNU getpass() is already found in glibc. 23 AC_LIBOBJ([getpass]) 24 gl_PREREQ_GETPASS 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().]) 30]) 31 32# Prerequisites of lib/getpass.c. 33AC_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],,, 37 [#include <stdio.h> 38 #if HAVE_STDIO_EXT_H 39 #include <stdio_ext.h> 40 #endif]) 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]) 46 : 47]) 48