Use an all-permissive copyright notice, recommended by RMS.

[gnulib.git] / m4 / getpass.m4

diff --git a/m4/getpass.m4 b/m4/getpass.m4
index 1a349c7..d48534c 100644 (file)
--- a/m4/getpass.m4
+++ b/m4/getpass.m4
@@ -1,15 +1,14 @@
-# getpass.m4 serial 2
+# getpass.m4 serial 5
 dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+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_REPLACE_FUNCS(getpass)
+  AC_CHECK_DECLS_ONCE(getpass)
   if test $ac_cv_func_getpass = no; then
     gl_PREREQ_GETPASS
   fi
@@ -19,6 +18,8 @@ AC_DEFUN([gl_FUNC_GETPASS],
 # arbitrary length (not just 8 bytes as on HP-UX).
 AC_DEFUN([gl_FUNC_GETPASS_GNU],
 [
+  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
@@ -30,6 +31,7 @@ AC_DEFUN([gl_FUNC_GETPASS_GNU],
 
 # Prerequisites of lib/getpass.c.
 AC_DEFUN([gl_PREREQ_GETPASS], [
+  AC_CHECK_HEADERS_ONCE(stdio_ext.h)
+  AC_CHECK_DECLS_ONCE([fflush_unlocked flockfile fputs_unlocked funlockfile putc_unlocked])
   :
 ])
-