# getpass.m4 serial 6 dnl Copyright (C) 2002-2003, 2005 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. # Provide a getpass() function if the system doesn't have it. AC_DEFUN([gl_FUNC_GETPASS], [ AC_LIBSOURCES([getpass.c, getpass.h]) AC_REPLACE_FUNCS(getpass) AC_CHECK_DECLS_ONCE(getpass) if test $ac_cv_func_getpass = no; then gl_PREREQ_GETPASS fi ]) # Provide the GNU getpass() implementation. It supports passwords of # arbitrary length (not just 8 bytes as on HP-UX). AC_DEFUN([gl_FUNC_GETPASS_GNU], [ AC_LIBSOURCES([getpass.c, getpass.h]) AC_CHECK_DECLS_ONCE(getpass) dnl TODO: Detect when GNU getpass() is already found in glibc. AC_LIBOBJ(getpass) gl_PREREQ_GETPASS dnl We must choose a different name for our function, since on ELF systems dnl an unusable getpass() in libc.so would override our getpass() if it is dnl compiled into a shared library. AC_DEFINE([getpass], [gnu_getpass], [Define to a replacement function name for getpass().]) ]) # Prerequisites of lib/getpass.c. AC_DEFUN([gl_PREREQ_GETPASS], [ AC_CHECK_HEADERS_ONCE(stdio_ext.h termios.h) AC_CHECK_FUNCS_ONCE(__fsetlocking tcgetattr tcsetattr) AC_CHECK_DECLS_ONCE([fflush_unlocked flockfile fputs_unlocked funlockfile putc_unlocked]) ])