--- Source/autotools/SetupAutomake.m4.orig	2015-10-13 04:37:08 UTC
+++ Source/autotools/SetupAutomake.m4
@@ -21,6 +21,7 @@ AM_CONDITIONAL([OS_LINUX],[test "$os_lin
 AM_CONDITIONAL([OS_GNU],[test "$os_gnu" = "yes"])
 AM_CONDITIONAL([OS_DARWIN],[test "$os_darwin" = "yes"])
 AM_CONDITIONAL([OS_FREEBSD],[test "$os_freebsd" = "yes"])
+AM_CONDITIONAL([OS_BSDSUNIX],[test "$os_bsdsunix" = "yes"])
 
 # Target conditionals.
 AM_CONDITIONAL([TARGET_X11], [test "$with_target" = "x11"])