Index: head/Mk/bsd.sanity.mk
===================================================================
--- head/Mk/bsd.sanity.mk
+++ head/Mk/bsd.sanity.mk
@@ -111,7 +111,9 @@
 DEV_WARNING+=	"LICENSE must not contain BSD, instead use BSD[234]CLAUSE"
 .endif
 .else
+.  if empty(USES:Mmetaport)
 DEV_WARNING+=	"Please set LICENSE for this port"
+.  endif
 .endif
 
 .if defined(USE_PYDISTUTILS) && ${USE_PYDISTUTILS} == "easy_install"