2.4.1 is safe to use. Perhaps we should just drop the 3rd part from

the check there?  Might be unsafe if they break 2.4.2 though

diff --git a/Zend/acinclude.m4 b/Zend/acinclude.m4
index 1c6ebd9baaac6931a5e4c917dc33b8677fc5c323..3dc3da6b619ae943c6e8f4fa85156a3723c72ae3 100644 (file)
--- a/Zend/acinclude.m4
+++ b/Zend/acinclude.m4
@@ -4,7 +4,7 @@ dnl This file contains local autoconf functions.
 
 AC_DEFUN([LIBZEND_BISON_CHECK],[
   # we only support certain bison versions
-  bison_version_list="1.28 1.35 1.75 1.875 2.0 2.1 2.2 2.3 2.4"
+  bison_version_list="1.28 1.35 1.75 1.875 2.0 2.1 2.2 2.3 2.4 2.4.1"
 
   # for standalone build of Zend Engine
   test -z "$SED" && SED=sed