1# getpass.m4 serial 6 2dnl Copyright (C) 2002-2003, 2005 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_LIBSOURCES([getpass.c, getpass.h]) 11 12 AC_REPLACE_FUNCS(getpass) 13 AC_CHECK_DECLS_ONCE(getpass) 14 if test $ac_cv_func_getpass = no; then 15 gl_PREREQ_GETPASS 16 fi 17]) 18 19# Provide the GNU getpass() implementation. It supports passwords of 20# arbitrary length (not just 8 bytes as on HP-UX). 21AC_DEFUN([gl_FUNC_GETPASS_GNU], 22[ 23 AC_LIBSOURCES([getpass.c, getpass.h]) 24 25 AC_CHECK_DECLS_ONCE(getpass) 26 dnl TODO: Detect when GNU getpass() is already found in glibc. 27 AC_LIBOBJ(getpass) 28 gl_PREREQ_GETPASS 29 dnl We must choose a different name for our function, since on ELF systems 30 dnl an unusable getpass() in libc.so would override our getpass() if it is 31 dnl compiled into a shared library. 32 AC_DEFINE([getpass], [gnu_getpass], 33 [Define to a replacement function name for getpass().]) 34]) 35 36# Prerequisites of lib/getpass.c. 37AC_DEFUN([gl_PREREQ_GETPASS], [ 38 AC_CHECK_HEADERS_ONCE(stdio_ext.h termios.h) 39 AC_CHECK_FUNCS_ONCE(__fsetlocking tcgetattr tcsetattr) 40 AC_CHECK_DECLS_ONCE([fflush_unlocked flockfile fputs_unlocked funlockfile putc_unlocked]) 41]) 42