Index: Mk/bsd.port.mk
===================================================================
--- Mk/bsd.port.mk
+++ Mk/bsd.port.mk
@@ -1640,8 +1640,10 @@
 MAKE_ENV+=	NO_PIE=yes
 # We will control debug files.  Don't let builds that use /usr/share/mk
 # split out debug symbols since the plist won't know to expect it.
+.if ${OSVERSION} > 1100091
 MAKE_ENV+=	WITHOUT_DEBUG_FILES=yes
 MAKE_ENV+=	WITHOUT_KERNEL_SYMBOLS=yes
+.endif
 
 .if defined(NOPORTDOCS)
 PLIST_SUB+=		PORTDOCS="@comment "