diff -urN /usr/ports/cad/irsim/Makefile cad/irsim/Makefile
--- /usr/ports/cad/irsim/Makefile	2012-06-01 22:18:21.000000000 +0900
+++ cad/irsim/Makefile	2012-07-06 18:42:42.000000000 +0900
@@ -6,8 +6,7 @@
 #
 
 PORTNAME=	irsim
-PORTVERSION=	9.7.72
-PORTREVISION=	0
+PORTVERSION=	9.7.74
 CATEGORIES=	cad
 MASTER_SITES=	http://opencircuitdesign.com/irsim/archive/
 EXTRACT_SUFX=	.tgz
@@ -15,49 +14,62 @@
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	An event-driven logic-level simulator for MOS circuis
 
+LICENSE=	GPLv2
+
+OPTIONS_DEFINE=	INTERPRETER
+OPTIONS_SINGLE=	INTERPRETER
+OPTIONS_SINGLE_INTERPRETER=	SCHEME TCL
+OPTIONS_DEFAULT=	INTERPRETER SCHEME
+INTERPRETER_DESC=	Enable built-in interpreter support
+SCHEME_DESC=	Scheme interpreter
+TCL_DESC=	Tcl interpreter
+
+CONFIGURE_WRKSRC=	${WRKSRC}/scripts
+
 USE_XORG=	x11
 USE_GMAKE=	yes
 GNU_CONFIGURE=	yes
-CONFIGURE_WRKSRC=	${WRKSRC}/scripts/
+MAKE_JOBS_SAFE=	yes
 
 CFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
-CONFIGURE_ENV+=	PIC_CFLAGS="-fpic" \
-		PTHREAD_LIBS="${PTHREAD_LIBS}"
-
-OPTIONS_SINGLE=	INTERPRETER
-OPTIONS_SINGLE_INTERPRETER=	TCL SCHEME
-OPTIONS_DEFAULT=	SCHEME
-SCHEME_DESC=	Enable built-in Scheme interpreter
-TCL_DESC=	Enable built-in Tcl interpreter
 
 MAN1=		irsim.1
 MAN3=		irsim-analyzer.3
 MAN5=		netchange.5
 
-TK_VER=		8.4
-
 .include <bsd.port.options.mk>
 
 .if ${PORT_OPTIONS:MTCL}
-LIB_DEPENDS+=	tk84.1:${PORTSDIR}/x11-toolkits/tk84
-CONFIGURE_ARGS+=	--with-tcl=${LOCALBASE}/lib/tcl${TK_VER} \
-			--with-tk=${LOCALBASE}/lib/tk${TK_VER} \
-			--with-tcllibs=${LOCALBASE}/lib/ \
-			--with-tklibs=${LOCALBASE}/lib/ \
-			--with-tclincls=${LOCALBASE}/include/tcl${TK_VER} \
-			--with-tkincls=${LOCALBASE}/include/tk${TK_VER} \
+USE_TK_BUILD=	yes
+USE_TK=		yes
+CONFIGURE_ARGS+=	--with-tcl=${TCL_LIBDIR} \
+			--with-tk=${TK_LIBDIR} \
+			--with-tclincls=${TCL_INCLUDEDIR} \
+			--with-tkincls=${TK_INCLUDEDIR} \
+			--with-tcllibs=${LOCALBASE}/lib \
+			--with-tklibs=${LOCALBASE}/lib \
 			--with-interpreter=tcl
-PLIST_SUB+=	TCL=""
+PLIST_SUB+=	TCL="" NOTCL="@comment "
 .else
-PLIST_SUB+=	TCL="@comment "
+WISH=		${FALSE}
+PLIST_SUB+=	TCL="@comment " NOTCL=""
 .endif
 
 .if ${PORT_OPTIONS:MSCHEME}
 CONFIGURE_ARGS+=	--with-interpreter=scheme
-PLIST_SUB+=	SCHEME=""
-.else
-PLIST_SUB+=	SCHEME="@comment "
 .endif
 
+.if empty(PORT_OPTIONS:MSCHEME) && empty(PORT_OPTIONS:MTCL)
+CONFIGURE_ARGS+=	--with-interpreter=no
+.endif
+
+post-patch:
+	@${REINPLACE_CMD} -e \
+		's|FreeBSD-\*|*-*-freebsd*| ; \
+		 s|wish |${WISH:T} | ; \
+		 s|-lpthread|${PTHREAD_LIBS}| ; \
+		 s|"-fpic"|"-fPIC"| ; \
+		 /-l\/usr\/X11R6\/include/d' ${CONFIGURE_WRKSRC}/configure
+
 .include <bsd.port.mk>
diff -urN /usr/ports/cad/irsim/distinfo cad/irsim/distinfo
--- /usr/ports/cad/irsim/distinfo	2011-03-20 21:46:12.000000000 +0900
+++ cad/irsim/distinfo	2012-07-06 04:42:03.000000000 +0900
@@ -1,2 +1,2 @@
-SHA256 (irsim-9.7.72.tgz) = 1e783d24715d31fa3294ebef3e7c9662e13d63402fde7bbc8c327f90c91023ea
-SIZE (irsim-9.7.72.tgz) = 454387
+SHA256 (irsim-9.7.74.tgz) = d467e32e5c8577ffdc53a20928f9a2acfe834a7ec8148b7bccf7118481839d98
+SIZE (irsim-9.7.74.tgz) = 454474
diff -urN /usr/ports/cad/irsim/files/patch-scripts_configure cad/irsim/files/patch-scripts_configure
--- /usr/ports/cad/irsim/files/patch-scripts_configure	2007-01-11 03:21:44.000000000 +0900
+++ cad/irsim/files/patch-scripts_configure	1970-01-01 09:00:00.000000000 +0900
@@ -1,33 +0,0 @@
---- scripts/configure.orig	Tue Oct 24 21:09:50 2006
-+++ scripts/configure	Wed Jan 10 21:17:08 2007
-@@ -8180,8 +8180,9 @@
- fi
- 
- if test $usingTcl ; then
-+	echo "=============>$target"
-   case $target in
--    *-sunos4*|*-*-netbsd|NetBSD-*|FreeBSD-*|OpenBSD-*)
-+    *-sunos4*|*-*-netbsd|NetBSD-*|*-*-freebsd*|OpenBSD-*)
-       TCL_LIB_NAME="tcl${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}"
-       TK_LIB_NAME="tk${TK_MAJOR_VERSION}${TK_MINOR_VERSION}"
-       ;;
-@@ -8421,7 +8422,7 @@
- #define HAVE_PTHREADS 1
- _ACEOF
- 
--    gr_libs="$gr_libs -lpthread"
-+    gr_libs="$gr_libs $PTHREAD_LIBS"
-     gr_srcs="$gr_srcs thread.c"
-     gr_hsrcs=""
-     gr_hprog=""
-@@ -10258,9 +10259,8 @@
- 
-     *-freebsd*)
-       # Not available on all versions:  check for include file.
--      SHLIB_CFLAGS="-fpic"
-+      SHLIB_CFLAGS=${PIC_CFLAGS}
-       LDDL_FLAGS="-shared ${LIB_SPECS}"
--      CFLAGS="${CFLAGS} -l/usr/X11R6/include"
-       ;;
- 
-     *-netbsd*|*-openbsd*)
diff -urN /usr/ports/cad/irsim/pkg-descr cad/irsim/pkg-descr
--- /usr/ports/cad/irsim/pkg-descr	2011-10-23 08:49:46.000000000 +0900
+++ cad/irsim/pkg-descr	2012-07-06 04:37:10.000000000 +0900
@@ -4,3 +4,5 @@
 where magic was installed, e.g. /usr/local.  Alternatively, the system
 administrator can create a dummy user named 'cad' with its home
 directory set to the installation directory.
+
+WWW: http://opencircuitdesign.com/irsim/
diff -urN /usr/ports/cad/irsim/pkg-plist cad/irsim/pkg-plist
--- /usr/ports/cad/irsim/pkg-plist	2008-05-15 17:52:12.000000000 +0900
+++ cad/irsim/pkg-plist	2012-07-06 18:40:45.000000000 +0900
@@ -1,6 +1,6 @@
+%%NOTCL%%bin/genspktbl
+%%NOTCL%%bin/gentbl
 bin/irsim
-%%SCHEME%%bin/gentbl
-%%SCHEME%%bin/genspktbl
 lib/irsim/doc/irsim-analyzer.doc
 lib/irsim/doc/irsim.doc
 lib/irsim/doc/netchange.doc