commit b4586ae5b971ba00f618e67b400c0fe293addb09
Author: Kevin Zheng <kevinz5000@gmail.com>
Date:   Wed Feb 1 17:58:40 2017 -0800

    cad/ngspice: Add option to build as shared library

diff --git a/cad/ngspice_rework/Makefile b/cad/ngspice_rework/Makefile
index e084d5ff0d30..1386471aa00a 100644
--- a/cad/ngspice_rework/Makefile
+++ b/cad/ngspice_rework/Makefile
@@ -3,7 +3,7 @@
 
 PORTNAME=	ngspice_rework
 PORTVERSION=	26
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	cad
 MASTER_SITES=	SF/ngspice/ng-spice-rework/${PORTVERSION}
 DISTNAME=	ngspice-${PORTVERSION}
@@ -18,15 +18,20 @@ BROKEN_aarch64=	Fails to link: missing sbrk
 GNU_CONFIGURE=	yes
 USES=		gmake libtool readline
 
-CONFIGURE_ARGS=	--with-readline=yes \
-		--enable-xspice
+CONFIGURE_ARGS=	--enable-cider --enable-xspice --with-readline=yes
 
-OPTIONS_DEFINE=		DEBUG X11
-OPTIONS_DEFAULT=	X11
+OPTIONS_DEFINE=			DEBUG
+OPTIONS_SINGLE=			INTERFACE
+OPTIONS_SINGLE_INTERFACE=	SHLIB X11
+OPTIONS_DEFAULT=		X11
+OPTIONS_SUB=			yes
+
+DEBUG_CONFIGURE_ENABLE=	debug
+
+SHLIB_CONFIGURE_WITH=	ngshared
+SHLIB_DESC=		Build as a shared library
 
 X11_USE=		XORG=ice,sm,x11,xaw,xext,xmu,xt
 X11_CONFIGURE_WITH=	x
 
-DEBUG_CONFIGURE_ENABLE=	debug
-
 .include <bsd.port.mk>
diff --git a/cad/ngspice_rework/pkg-descr b/cad/ngspice_rework/pkg-descr
index 514d51691ff7..a04f765d9330 100644
--- a/cad/ngspice_rework/pkg-descr
+++ b/cad/ngspice_rework/pkg-descr
@@ -1,9 +1,7 @@
-Ngspice is the name of a project and of a program in the project.  Spice is
-the famous circuit simulator developed by the CAD Group of the University of
-California at Berkeley (UCB). The NG prefix has a lot of meanings: Next
-Generation, New Good, etc. Choose or invent the one you prefer. The ngspice
-project aims to improve the capabilities of the Spice3 circuit simulator. The
-heart of the project is the ngspice program, a circuit simulator derived from
-spice3f5.
+Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based
+on three open source software packages: Spice3f5, Cider1b1 and Xspice. It is
+the open source successor of these venerable packages. Many, many
+modifications, bug fixes and improvements have been added to the code,
+yielding a stable and reliable simulator.
 
 WWW: http://ngspice.sourceforge.net/
diff --git a/cad/ngspice_rework/pkg-plist b/cad/ngspice_rework/pkg-plist
index 130cb5369730..dc5524f5c76b 100644
--- a/cad/ngspice_rework/pkg-plist
+++ b/cad/ngspice_rework/pkg-plist
@@ -1,10 +1,13 @@
 bin/cmpp
-bin/ngmakeidx
-bin/ngmultidec
-bin/ngnutmeg
-bin/ngproc2mod
-bin/ngsconvert
-bin/ngspice
+%%X11%%bin/ngmakeidx
+%%X11%%bin/ngmultidec
+%%X11%%bin/ngnutmeg
+%%X11%%bin/ngproc2mod
+%%X11%%bin/ngsconvert
+%%X11%%bin/ngspice
+%%SHLIB%%lib/libngspice.so
+%%SHLIB%%lib/libngspice.so.0
+%%SHLIB%%lib/libngspice.so.0.0.0
 lib/ngspice/analog.cm
 lib/ngspice/digital.cm
 lib/ngspice/spice2poly.cm
@@ -15,8 +18,8 @@ man/man1/ngnutmeg.1.gz
 man/man1/ngsconvert.1.gz
 man/man1/ngspice.1.gz
 share/ngspice/dlmain.c
-share/ngspice/helpdir/ngspice.idx
-share/ngspice/helpdir/ngspice.txt
+%%X11%%share/ngspice/helpdir/ngspice.idx
+%%X11%%share/ngspice/helpdir/ngspice.txt
 share/ngspice/include/ngspice/1-f-code.h
 share/ngspice/include/ngspice/FastNorm3.h
 share/ngspice/include/ngspice/acdefs.h
@@ -136,6 +139,9 @@ share/ngspice/include/ngspice/typedefs.h
 share/ngspice/include/ngspice/wallace.h
 share/ngspice/include/ngspice/wordlist.h
 share/ngspice/include/ngspice/wstdio.h
+share/ngspice/scripts/ciderinit
+share/ngspice/scripts/devaxis
+share/ngspice/scripts/devload
 share/ngspice/scripts/setplot
 share/ngspice/scripts/spectrum
 share/ngspice/scripts/spinit