Index: head/cad/verilator/Makefile
===================================================================
--- head/cad/verilator/Makefile	(revision 514851)
+++ head/cad/verilator/Makefile	(revision 514852)
@@ -1,30 +1,29 @@
 # $FreeBSD$
 
 PORTNAME=	verilator
-PORTVERSION=	4.008
-PORTREVISION=	2
+DISTVERSION=	4.020
 CATEGORIES=	cad
 MASTER_SITES=	https://www.veripool.org/ftp/
 
 MAINTAINER=	kevinz5000@gmail.com
 COMMENT=	Synthesizable Verilog to C++ compiler
 
 LICENSE=	GPLv3
-LICENSE_FILE=	${WRKSRC}/COPYING
+LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		bison compiler:c++11-lang gmake pathfix perl5 tar:tgz
+USES=		bison compiler:c++14-lang gmake pathfix perl5 tar:tgz
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	INSTALL_PROGRAM="${INSTALL_SCRIPT}"
 
 post-patch:
 	${REINPLACE_CMD} -e 's|@pkgconfigdir@|${PREFIX}/libdata/pkgconfig|' \
 	    ${WRKSRC}/Makefile.in
 
 post-build:
 	@${STRIP_CMD} ${WRKSRC}/bin/verilator_bin
 
 post-install:
-	${RM} ${STAGEDIR}${PREFIX}/bin/verilator_bin_dbg ${STAGEDIR}${PREFIX}/bin/verilator_coverage_bin_dbg
+	@${RM} ${STAGEDIR}${PREFIX}/bin/verilator_bin_dbg ${STAGEDIR}${PREFIX}/bin/verilator_coverage_bin_dbg
 
 .include <bsd.port.mk>
Index: head/cad/verilator/distinfo
===================================================================
--- head/cad/verilator/distinfo	(revision 514851)
+++ head/cad/verilator/distinfo	(revision 514852)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1548558502
-SHA256 (verilator-4.008.tgz) = d5cef6edd3bdb7754776d902daae7a7e5dd662baa7c7f895cb7028b1d6910cac
-SIZE (verilator-4.008.tgz) = 2519234
+TIMESTAMP = 1571513048
+SHA256 (verilator-4.020.tgz) = abd79fc2a54cab9da33dfccd669bda3baa71e79060abec17517f0b7374dbc31a
+SIZE (verilator-4.020.tgz) = 2355177
Index: head/cad/verilator/pkg-plist
===================================================================
--- head/cad/verilator/pkg-plist	(revision 514851)
+++ head/cad/verilator/pkg-plist	(revision 514852)
@@ -1,73 +1,69 @@
 bin/verilator
 bin/verilator_bin
 bin/verilator_coverage
 bin/verilator_gantt
 bin/verilator_profcfunc
 libdata/pkgconfig/verilator.pc
 man/man1/verilator.1.gz
 man/man1/verilator_coverage.1.gz
 man/man1/verilator_gantt.1.gz
 man/man1/verilator_profcfunc.1.gz
 %%DATADIR%%/bin/verilator_includer
 %%DATADIR%%/examples/hello_world_c/Makefile
 %%DATADIR%%/examples/hello_world_c/sim_main.cpp
 %%DATADIR%%/examples/hello_world_c/top.v
 %%DATADIR%%/examples/hello_world_sc/Makefile
 %%DATADIR%%/examples/hello_world_sc/sc_main.cpp
 %%DATADIR%%/examples/hello_world_sc/top.v
 %%DATADIR%%/examples/tracing_c/Makefile
 %%DATADIR%%/examples/tracing_c/Makefile_obj
 %%DATADIR%%/examples/tracing_c/input.vc
 %%DATADIR%%/examples/tracing_c/sim_main.cpp
 %%DATADIR%%/examples/tracing_c/sub.v
 %%DATADIR%%/examples/tracing_c/top.v
 %%DATADIR%%/examples/tracing_sc/Makefile
 %%DATADIR%%/examples/tracing_sc/Makefile_obj
 %%DATADIR%%/examples/tracing_sc/input.vc
 %%DATADIR%%/examples/tracing_sc/sc_main.cpp
 %%DATADIR%%/examples/tracing_sc/sub.v
 %%DATADIR%%/examples/tracing_sc/top.v
 %%DATADIR%%/include/gtkwave/fastlz.c
 %%DATADIR%%/include/gtkwave/fastlz.h
 %%DATADIR%%/include/gtkwave/fst_config.h
 %%DATADIR%%/include/gtkwave/fstapi.c
 %%DATADIR%%/include/gtkwave/fstapi.h
-%%DATADIR%%/include/gtkwave/lxt2_write.cpp
-%%DATADIR%%/include/gtkwave/lxt2_write.h
 %%DATADIR%%/include/gtkwave/lz4.c
 %%DATADIR%%/include/gtkwave/lz4.h
 %%DATADIR%%/include/gtkwave/wavealloca.h
 %%DATADIR%%/include/verilated.cpp
 %%DATADIR%%/include/verilated.h
 %%DATADIR%%/include/verilated.mk
 %%DATADIR%%/include/verilated.v
 %%DATADIR%%/include/verilated_config.h
 %%DATADIR%%/include/verilated_config.h.in
 %%DATADIR%%/include/verilated_cov.cpp
 %%DATADIR%%/include/verilated_cov.h
 %%DATADIR%%/include/verilated_cov_key.h
 %%DATADIR%%/include/verilated_dpi.cpp
 %%DATADIR%%/include/verilated_dpi.h
 %%DATADIR%%/include/verilated_fst_c.cpp
 %%DATADIR%%/include/verilated_fst_c.h
 %%DATADIR%%/include/verilated_heavy.h
 %%DATADIR%%/include/verilated_imp.h
-%%DATADIR%%/include/verilated_lxt2_c.cpp
-%%DATADIR%%/include/verilated_lxt2_c.h
 %%DATADIR%%/include/verilated_save.cpp
 %%DATADIR%%/include/verilated_save.h
 %%DATADIR%%/include/verilated_sc.h
 %%DATADIR%%/include/verilated_sym_props.h
 %%DATADIR%%/include/verilated_syms.h
 %%DATADIR%%/include/verilated_threads.cpp
 %%DATADIR%%/include/verilated_threads.h
 %%DATADIR%%/include/verilated_unordered_set_map.h
 %%DATADIR%%/include/verilated_vcd_c.cpp
 %%DATADIR%%/include/verilated_vcd_c.h
 %%DATADIR%%/include/verilated_vcd_sc.cpp
 %%DATADIR%%/include/verilated_vcd_sc.h
 %%DATADIR%%/include/verilated_vpi.cpp
 %%DATADIR%%/include/verilated_vpi.h
 %%DATADIR%%/include/verilatedos.h
 %%DATADIR%%/include/vltstd/svdpi.h
 %%DATADIR%%/include/vltstd/vpi_user.h