--- b/math/nauty/Makefile	
+++ b/math/nauty/Makefile	
@@ -2,6 +2,7 @@ 
 
 PORTNAME=	nauty
 PORTVERSION=	27r1
+PORTREVISION=	1
 CATEGORIES=	math
 MASTER_SITES=	https://users.cecs.anu.edu.au/~bdm/nauty/
 DISTNAME=	${PORTNAME}${PORTVERSION}
@@ -10,7 +11,6 @@ MAINTAINER=	moritz@schmi.tt
 COMMENT=	Nauty & Traces are programs for computing graph automorphisms
 
 LICENSE=	APACHE20
-LICENSE_FILE=	${WRKSRC}/COPYRIGHT
 
 USES=		gmake
 
@@ -22,54 +22,23 @@ CFLAGS+=	-fPIC
 
 OPTIONS_DEFINE=	DOCS
 
+post-build:
+	@cd ${WRKSRC} && ${CC} ${LDFLAGS} -shared -o libnauty.so nauty.a
+
 do-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/include/nauty
 	${INSTALL_DATA} ${WRKSRC}/nauty.h ${STAGEDIR}${PREFIX}/include/nauty
 	# Do not use ${INSTALL_LIB} to strip the library!
 	${INSTALL_DATA} ${WRKSRC}/nauty.a ${STAGEDIR}${PREFIX}/lib/libnauty.a
-	${INSTALL_PROGRAM} ${WRKSRC}/addedgeg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/amtog ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/assembleg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/biplabg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/catg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/complg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/converseg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/copyg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/countg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/cubhamg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/deledgeg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/delptg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/directg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/dreadnaut ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/dretodot ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/dretog ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/edgetransg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/genbg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/genbgL ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/geng ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/gengL ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/genquarticg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/genrang ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/genspecialg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/gentourng ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/gentreeg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/hamheuristic ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/labelg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/linegraphg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/listg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/multig ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/newedgeg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/NRswitchg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/pickg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/planarg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/ranlabg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/shortg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/showg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/subdivideg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/twohamg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/underlyingg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/vcolg ${STAGEDIR}${PREFIX}/bin
-	${INSTALL_PROGRAM} ${WRKSRC}/watercluster2 ${STAGEDIR}${PREFIX}/bin
+	${INSTALL_LIB} ${WRKSRC}/libnauty.so ${STAGEDIR}${PREFIX}/lib
+.for e in \
+	NRswitchg addedgeg amtog assembleg biplabg catg complg converseg copyg countg \
+	cubhamg deledgeg delptg directg dreadnaut dretodot dretog edgetransg genbg genbgL \
+	geng gengL genquarticg genrang genspecialg gentourng gentreeg hamheuristic labelg linegraphg \
+	listg multig newedgeg pickg planarg ranlabg shortg showg subdivideg twohamg \
+	underlyingg vcolg watercluster2
+	${INSTALL_PROGRAM} ${WRKSRC}/${e} ${STAGEDIR}${PREFIX}/bin
+.endfor
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
--- b/math/nauty/pkg-descr	
+++ b/math/nauty/pkg-descr	
@@ -1,4 +1,4 @@ 
-nauty is a program for computing automorphism groups of graphs and digraphs.
-It can also produce a canonical labelling.
+nauty and Traces are programs for computing automorphism groups of graphs and
+digraphs. They can also produce a canonical label.
 
 WWW: https://users.cecs.anu.edu.au/~bdm/nauty/
--- b/math/nauty/pkg-plist	
+++ b/math/nauty/pkg-plist	
@@ -44,3 +44,4 @@ bin/vcolg
 bin/watercluster2
 include/nauty/nauty.h
 lib/libnauty.a
+lib/libnauty.so