-# The following implementation works around a problem in autoconf <= 2.68;
-# AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5.
-m4_version_prereq([2.69], [] ,[
+# The following implementation works around a problem in autoconf <= 2.70;
+# AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5,
+# or configures them incorrectly in some cases.
+m4_version_prereq([2.70], [] ,[