diff -aurN par2cmdline-tbb.orig/Makefile par2cmdline-tbb/Makefile
--- par2cmdline-tbb.orig/Makefile	2009-07-07 16:34:38.000000000 +0200
+++ par2cmdline-tbb/Makefile	2009-07-07 16:37:40.000000000 +0200
@@ -19,7 +19,7 @@
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
-		LDFLAGS="-L${LOCALBASE}/lib"
+		LDFLAGS="-L${LOCALBASE}/lib ${PTHREAD_LIBS}"
 
 PORTDOCS=	README
 CONFLICTS=	par2cmdline-[0-9]*