--- ext/POSIX/hints/bsdsunix.pl.orig	2016-10-04 11:10:03 UTC
+++ ext/POSIX/hints/bsdsunix.pl
@@ -0,0 +1,3 @@
+# BSD platforms have extra fields in struct tm that need to be initialized.
+#  XXX A Configure test is needed.
+$self->{CCFLAGS} = $Config{ccflags} . ' -DSTRUCT_TM_HASZONE' ;