1 files changed, 0 insertions, 36 deletions

diff --git a/m4/unlocked-io.m4 b/m4/unlocked-io.m4
deleted file mode 100644
index 6cbacb0..0000000
--- a/m4/unlocked-io.m4
+++ /dev/null
@@ -1,36 +0,0 @@
-# unlocked-io.m4 serial 12
-
-# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software
-# Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-dnl From Jim Meyering.
-dnl
-dnl See if the glibc *_unlocked I/O macros or functions are available.
-dnl Use only those *_unlocked macros or functions that are declared
-dnl (because some of them were declared in Solaris 2.5.1 but were removed
-dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run
-dnl on Solaris 2.6).
-
-AC_DEFUN([gl_FUNC_GLIBC_UNLOCKED_IO],
-[
-  AC_LIBSOURCES([unlocked-io.h])
-
-  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
-      fflush_unlocked fgets_unlocked fputc_unlocked fputs_unlocked
-      fread_unlocked fwrite_unlocked getc_unlocked
-      getchar_unlocked putc_unlocked putchar_unlocked])
-])