-#serial 7 -*- autoconf -*-
+# unlocked-io.m4 serial 10
+
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
+# Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl From Jim Meyering.
dnl
dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run
dnl on Solaris 2.6).
-AC_DEFUN([jm_FUNC_GLIBC_UNLOCKED_IO],
+AC_DEFUN([gl_FUNC_GLIBC_UNLOCKED_IO],
[
- dnl Persuade glibc <stdio.h> to declare fgets_unlocked(), fputs_unlocked()
- dnl etc.
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_DEFINE([USE_UNLOCKED_IO], 1,
+ [Define to 1 if you want getc etc. to use unlocked I/O if available.
+ Unlocked I/O can improve performance in unithreaded apps,
+ but it is not safe for multithreaded apps.])
+
+ dnl Persuade glibc and Solaris <stdio.h> to declare
+ dnl fgets_unlocked(), fputs_unlocked() etc.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_CHECK_DECLS_ONCE(
[clearerr_unlocked feof_unlocked ferror_unlocked