Adding rankwidth / rw, a program to calculate rank-width and rank-

decompositions.

To be used by SageMath.

math/Makefile

@@ -840,6 +840,7 @@
     SUBDIR += qtiplot-doc
     SUBDIR += qwtplot3d
     SUBDIR += randlib
+    SUBDIR += rankwidth
     SUBDIR += rapid
     SUBDIR += reduce
     SUBDIR += reduce-psl

math/rankwidth/Makefile

@@ -0,0 +1,23 @@
+# Created by: thierry@pompo.net
+# $FreeBSD$
+
+PORTNAME=	rw
+PORTVERSION=	0.8
+CATEGORIES=	math
+MASTER_SITES=	SF/rankwidth/
+
+MAINTAINER=	thierry@FreeBSD.org
+COMMENT=	Calculation of rank-width and rank-decompositions
+
+LICENSE=	GPLv2
+
+LIB_DEPENDS=	libigraph.so:math/igraph
+
+USES=		autoreconf libtool localbase pkgconfig
+
+OPTIONS_DEFINE=	DOCS
+
+GNU_CONFIGURE=	yes
+USE_LDCONFIG=	yes
+
+.include <bsd.port.mk>

math/rankwidth/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1585644841
+SHA256 (rw-0.8.tar.gz) = 60fd5320bef28a5156284fc224534376405f2655c6777a12a05fcacc0576d700
+SIZE (rw-0.8.tar.gz) = 217215

math/rankwidth/pkg-descr

@@ -0,0 +1,7 @@
+rw calculates rank-width and rank-decompositions. It is based on ideas from
+"Computing rank-width exactly" by Sang-il Oum, "Sopra una formula numerica" by
+Ernesto Pascal, "Generation of a Vector from the Lexicographical Index" by B.P.
+Buckles and M. Lybanon and "Fast additions on masked integers" by Michael D.
+Adams and David S. Wise.
+
+WWW: https://sourceforge.net/projects/rankwidth/

math/rankwidth/pkg-plist

@@ -0,0 +1,10 @@
+bin/rw
+include/rw.h
+lib/librw.a
+lib/librw.so
+lib/librw.so.0
+lib/librw.so.0.0.0
+%%PORTDOCS%%%%DOCSDIR%%/Hängematte
+%%PORTDOCS%%%%DOCSDIR%%/README
+%%PORTDOCS%%%%DOCSDIR%%/grid
+%%PORTDOCS%%%%DOCSDIR%%/igrid