Index: head/security/tor-devel/Makefile
===================================================================
--- head/security/tor-devel/Makefile	(revision 553883)
+++ head/security/tor-devel/Makefile	(revision 553884)
@@ -1,120 +1,129 @@
 # Created by: peter.thoenen@yahoo.com
 # $FreeBSD$
 
 PORTNAME=	tor
-DISTVERSION=	0.4.4.4-rc
+DISTVERSION=	0.4.5.1-alpha
 CATEGORIES=	security net
 MASTER_SITES=	TOR
 PKGNAMESUFFIX=	-devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Anonymizing overlay network for TCP
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		compiler:c11 cpe gmake pkgconfig # should be compiler:c99 or compiler:gnu99
+USES=		compiler:c11 cpe gmake localbase pkgconfig # should be compiler:c99 or compiler:gnu99
 USE_CSTD=	gnu99 # until this bug report is closed: https://trac.torproject.org/projects/tor/ticket/27900
 
 CPE_VENDOR=	torproject
 GNU_CONFIGURE=	yes
-CONFIGURE_ARGS=	--with-openssl-dir="${OPENSSLBASE}"
+CONFIGURE_ARGS=	--with-openssl-dir="${OPENSSLBASE}" \
+		--with-libevent-dir=${LOCALBASE}
 CONFIGURE_ENV=	TOR_CPPFLAGS_libevent="-I${LOCALBASE}/include" \
 		TOR_LDFLAGS_libevent="-L${LOCALBASE}/lib/" \
 		TOR_LIBEVENT_LIBS="${TOR_LIBEVENT_LIBS}"
 
 OPTIONS_DEFINE=	MANPAGES DOCS STATIC_TOR TCMALLOC
-OPTIONS_GROUP=	COMPRESSION
-OPTIONS_GROUP_COMPRESSION=ZSTD LZMA
+OPTIONS_GROUP=	COMPRESSION TRACING
+OPTIONS_GROUP_COMPRESSION=	ZSTD LZMA
+OPTIONS_GROUP_TRACING=	LTTNG USDT LOG_DEBUG
 OPTIONS_DEFAULT=MANPAGES ZSTD LZMA
 OPTIONS_SUB=	yes
 STATIC_TOR_DESC=	Build a static tor
 TCMALLOC_DESC=		Use the tcmalloc memory allocation library
 COMPRESSION_DESC=	Supported compression libraries
+TRACING_DESC=		Tracing
 
 USE_RC_SUBR=	tor
 SUB_FILES=	pkg-message
 SUB_LIST=	USER="${USERS}" GROUP="${GROUPS}"
 PLIST_SUB=	USER="${USERS}" GROUP="${GROUPS}"
 
 GROUPS=		_tor
 USERS=		_tor
 
 CONFLICTS_INSTALL=	tor
 
 STATIC_TOR_USES=	ssl:build
 STATIC_TOR_USES_OFF=	ssl
 
+# compression options
 ZSTD_CONFIGURE_ENABLE=		zstd
 ZSTD_CONFIGURE_ENV=TOR_ZSTD_LIBS="${TOR_ZSTD_LIBS}"
 LZMA_CONFIGURE_ENABLE=		lzma
 
+# tracing options
+LTTNG_DESC=			Build with LTTng-UST instrumentation
+LTTNG_CONFIGURE_ENABLE=		tracing-instrumentation-lttng
+LTTNG_LIB_DEPENDS=		liblttng-ust.so:sysutils/lttng-ust
+LTTNG_BROKEN=			fatal error: 'core/or/lttng_circuit.inc' file not found
+USDT_DESC=			Build with tracing USDT instrumentation
+USDT_CONFIGURE_ENABLE=		tracing-instrumentation-usdt
+USDT_LIB_DEPENDS=		liblttng-ust.so:sysutils/lttng-ust
+USDT_BROKEN=			error: use of undeclared identifier 'tor_circuit'
+LOG_DEBUG_DESC=			Build with tracing event to debug log
+LOG_DEBUG_CONFIGURE_ENABLE=	tracing-instrumentation-log-debug
+
 .include <bsd.port.options.mk>
 
 .if ${PORT_OPTIONS:MDOCS} || ${PORT_OPTIONS:MMANPAGES}
 BUILD_DEPENDS+=	asciidoc:textproc/asciidoc
 .else
 CONFIGURE_ARGS+=	--disable-asciidoc
 .endif
 
 .if !defined(USE_GCC) && empty(CC:T:M*gcc4*) && \
 empty(PORT_OPTIONS:MSTATIC_TOR)
 CONFIGURE_ARGS+=	--enable-gcc-hardening
 .else
 CONFIGURE_ARGS+=	--disable-gcc-hardening
 .endif
 
 .if ${PORT_OPTIONS:MSTATIC_TOR}
 BUILD_DEPENDS +=	${LOCALBASE}/lib/libevent.a:devel/libevent
 CONFIGURE_ARGS+=	--enable-static-tor \
 			--with-zlib-dir=/usr/lib --disable-linker-hardening
 TOR_LIBEVENT_LIBS=	${LOCALBASE}/lib/libevent.a
 .  if ${PORT_OPTIONS:MZSTD}
 BUILD_DEPENDS+=		${LOCALBASE}/lib/libzstd.a:archivers/zstd
 TOR_ZSTD_LIBS=		${LOCALBASE}/lib/libzstd.a
 .  endif
 .else
 CONFIGURE_ARGS+=	--enable-linker-hardening
 LIB_DEPENDS+=		libevent.so:devel/libevent
 TOR_LIBEVENT_LIBS=	-levent
 .  if ${PORT_OPTIONS:MZSTD}
 LIB_DEPENDS+=		libzstd.so:archivers/zstd
 TOR_ZSTD_LIBS=		-lzstd
 .  endif
 .endif
 
 .if ${PORT_OPTIONS:MTCMALLOC}
 CONFIGURE_ARGS+=	--with-malloc=tcmalloc
 .if ${PORT_OPTIONS:MSTATIC_TOR}
 BUILD_DEPENDS+=		${LOCALBASE}/lib/libtcmalloc.a:devel/google-perftools
+LDFLAGS+=		-lc++ -lm # required by libtcmalloc.a and isn't cocered by google-perftools' `pkg-config --libs libtcmalloc` output
 .else
 LIB_DEPENDS+=		libtcmalloc.so:devel/google-perftools
 .endif
 .endif
 
 PORTSCOUT=		limit:^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+-[a-z].*$$
 
 post-patch:
 	@${REINPLACE_CMD} -E -e "s@(-z) (relro|now)@-Wl,\1,\2@g" \
 		${WRKSRC}/configure
 	@${REINPLACE_CMD} -e 's|lib/tor|db/tor|' \
 		${WRKSRC}/src/config/torrc.*.in \
-		${WRKSRC}/doc/tor.1.* \
-		${WRKSRC}/doc/tor.html.in
-
-post-patch-STATIC_TOR-off:
-	@${REINPLACE_CMD} -e "s@-ltcmalloc@${LOCALBASE}/lib/libtcmalloc.so@" \
-		${WRKSRC}/configure
-
-post-patch-STATIC_TOR-on:
-	@${REINPLACE_CMD} -e "s@-ltcmalloc@${LOCALBASE}/lib/libtcmalloc.a@" \
-		${WRKSRC}/configure
+		${WRKSRC}/doc/man/tor.1.* \
+		${WRKSRC}/doc/man/tor.html.in
 
 post-install:
 	@${MKDIR} ${STAGEDIR}/var/log/tor ${STAGEDIR}/var/run/tor ${STAGEDIR}/var/db/tor
 
 check regression-test test: build
 	@cd ${BUILD_WRKSRC} && ${SETENV} ${MAKE_ENV} ${MAKE_CMD} \
 		${MAKE_ARGS} check
 
 .include <bsd.port.mk>
Index: head/security/tor-devel/distinfo
===================================================================
--- head/security/tor-devel/distinfo	(revision 553883)
+++ head/security/tor-devel/distinfo	(revision 553884)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1597334807
-SHA256 (tor-0.4.4.4-rc.tar.gz) = a4b769dc751f33f5d6c83677a3aceb2fa3baaac4c6d040cf7b603bf09fc98e0b
-SIZE (tor-0.4.4.4-rc.tar.gz) = 7795842
+TIMESTAMP = 1604268035
+SHA256 (tor-0.4.5.1-alpha.tar.gz) = fcd9a133c988748413dc2e2e4dab28225ea6e20962691aa8ec390020cb686f4f
+SIZE (tor-0.4.5.1-alpha.tar.gz) = 7901876