--- libeio/Changes	2011/01/07 21:45:42	1.20
+++ libeio/Changes	2011/01/07 22:00:12	1.21
@@ -31,4 +31,5 @@
         - suppoert utimes seperately from futimes, as some systems have
           utimes but not futimes.
         - use _POSIX_MEMLOCK_RANGE for mlock.
+        - do not (errornously) overwrite CFLAGS in configure.ac.