--- ftp/lftp/Makefile	2018-08-21 12:25:31.034954000 +0200
+++ ftp/lftp/Makefile	2018-08-23 23:12:55.089298000 +0200
@@ -24,6 +24,7 @@ 
 
 USES=		charsetfix iconv libtool localbase readline shebangfix
 GNU_CONFIGURE=	yes
+LDFLAGS+=	-pthread
 
 PORTDOCS=	AUTHORS BUGS ChangeLog FAQ FEATURES INSTALL \
 		MIRRORS NEWS README README.debug-levels README.modules \