From: Steven Chamberlain <steven@pyro.eu.org>
Date: Mon, 15 Jun 2015 17:09:49 +0100

Support GNU/kFreeBSD by using __FreeBSD_kernel_version here,
rather than simply __FreeBSD_version (which is only defined in
FreeBSD itself).

Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=788709
--- a/sysdeps/freebsd/open.c
+++ b/sysdeps/freebsd/open.c
@@ -43,6 +43,10 @@
 	server->real_ncpu = ncpus - 1;
 	server->ncpu = MIN(GLIBTOP_NCPU - 1, server->real_ncpu);
 
+#if defined(__FreeBSD__)
 	server->os_version_code = __FreeBSD_version;
+#else
+	server->os_version_code = __FreeBSD_kernel_version;
+#endif
 
 }