maint.mk: avoid sc_prohibit_always-defined_macros failure in coreutils

[gnulib.git] / m4 / c-stack.m4

diff --git a/m4/c-stack.m4 b/m4/c-stack.m4
index 4f73b78..8d34048 100644 (file)
--- a/m4/c-stack.m4
+++ b/m4/c-stack.m4
@@ -1,18 +1,16 @@
 # Check prerequisites for compiling lib/c-stack.c.
 
-# Copyright (C) 2002, 2003, 2004, 2008, 2009, 2010 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002-2004, 2008-2011 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.
 
 # Written by Paul Eggert.
 
-# serial 12
+# serial 13
 
 AC_DEFUN([AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC],
-  [# for STACK_DIRECTION
-   AC_REQUIRE([AC_FUNC_ALLOCA])
+  [
    AC_REQUIRE([AC_CANONICAL_HOST])
    AC_CHECK_FUNCS_ONCE([setrlimit])
    AC_CHECK_HEADERS_ONCE([ucontext.h])