5,10 @@ CMAKE_OFF=	BUILD_DOCUMENTATION \
 		BUILD_UNIT_TESTS \
 		BUILD_EXAMPLES
 
-PORTSCOUT=	limit:^0\.
+EXTRACT_AFTER_ARGS=	--exclude ${GH_PROJECT_DEFAULT}-${GH_TAGNAME_EXTRACT}/3rd_party/chaiscript-* \
+			--exclude ${GH_PROJECT_DEFAULT}-${GH_TAGNAME_EXTRACT}/3rd_party/rapidjson-* \
+			--no-same-owner --no-same-permissions
 
-post-extract:
-	${RM} -r ${WRKSRC}/3rd_party/rapidjson-1.1.0/
-	${RM} -r ${WRKSRC}/3rd_party/chaiscript-devel/
-	${RM} -r ${WRKSRC}/3rd_party/chaiscript-6.1.0/
+PORTSCOUT=	limit:^0\.
 
 .include <bsd.port.mk>