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-rw-r--r--m4/alloca.m411
1 files changed, 7 insertions, 4 deletions
diff --git a/m4/alloca.m4 b/m4/alloca.m4
index f3ee343..eb62e0e 100644
--- a/m4/alloca.m4
+++ b/m4/alloca.m4
@@ -1,6 +1,5 @@
-# alloca.m4 serial 9
-dnl Copyright (C) 2002-2004, 2006-2007, 2009-2010 Free Software Foundation,
-dnl Inc.
+# alloca.m4 serial 7
+dnl Copyright (C) 2002-2004, 2006 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.
@@ -27,7 +26,7 @@ AC_DEFUN([gl_FUNC_ALLOCA],
])
if test $gl_cv_rpl_alloca = yes; then
dnl OK, alloca can be implemented through a compiler built-in.
- AC_DEFINE([HAVE_ALLOCA], [1],
+ AC_DEFINE([HAVE_ALLOCA], 1,
[Define to 1 if you have 'alloca' after including <alloca.h>,
a header that may be supplied by this distribution.])
ALLOCA_H=alloca.h
@@ -40,6 +39,10 @@ AC_DEFUN([gl_FUNC_ALLOCA],
ALLOCA_H=alloca.h
fi
AC_SUBST([ALLOCA_H])
+
+ AC_DEFINE(HAVE_ALLOCA_H, 1,
+ [Define HAVE_ALLOCA_H for backward compatibility with older code
+ that includes <alloca.h> only if HAVE_ALLOCA_H is defined.])
])
# Prerequisites of lib/alloca.c.