--- Python-2.7.13/configure.ac	2016-12-17 14:05:07.000000000 -0600
+++ Python-2.7.13/configure.ac	2017-03-21 00:18:18.011011900 -0500
@@ -92,11 +92,6 @@ AC_DEFINE(_GNU_SOURCE, 1, [Define on Lin
 AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features])
 
 # The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
-# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
-# them.
-AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])
-
-# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
 # u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
 AC_DEFINE(_BSD_TYPES, 1, [Define on Irix to enable u_int])