diff --git a/devel/pth/Makefile b/devel/pth/Makefile
index 233b8f0c5971..aa3277d4c30d 100644
--- a/devel/pth/Makefile
+++ b/devel/pth/Makefile
@@ -1,51 +1,54 @@
 PORTNAME=	pth
 PORTVERSION=	2.0.7
 PORTREVISION=	2
 CATEGORIES=	devel
 MASTER_SITES=	GNU
 PKGNAMESUFFIX?=	# empty
 
 MAINTAINER=	vd@FreeBSD.org
 COMMENT=	GNU Portable Threads
 WWW=		https://www.gnu.org/software/pth/
 
+DEPRECATED=	Abandoned, last release in 2006
+EXPIRATION_DATE=2025-07-31
+
 MAKE_JOBS_UNSAFE=	yes
 
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
 CONFIGURE_ARGS=	--enable-optimize \
 		--enable-batch \
 		--includedir="${PREFIX}/include/pth" \
 		--libdir="${PREFIX}/lib/pth"
 USES=		libtool
 USE_LDCONFIG=	${PREFIX}/lib/pth
 
 OPTIONS_DEFINE=	OPTIMIZED_CFLAGS
 OPTIONS_DEFAULT=	OPTIMIZED_CFLAGS
 
 CONFLICTS?=	pth-hard-2.*
 
 .include <bsd.port.options.mk>
 
 .if ${PKGNAMESUFFIX} == "-hard"
 CONFIGURE_ARGS+=	--enable-syscall-hard --disable-syscall-soft
 PLIST_SUB+=	PTHREAD="@comment "
 .else
 CONFIGURE_ARGS+=	--enable-syscall-soft --enable-pthread
 PLIST_SUB+=	PTHREAD=""
 .endif
 
 post-patch:
 .if ! ${PORT_OPTIONS:MOPTIMIZED_CFLAGS}
 	${REINPLACE_CMD} -e \
 		's|-funroll-loops -fstrength-reduce -fomit-frame-pointer -ffast-math||' \
 		${WRKSRC}/configure
 .endif
 
 post-build:
 	@${ECHO_MSG} "===>  Use 'make test' to run a quick test suite."
 
 test: build
 	cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${MAKE} ${MAKE_FLAGS} ${MAKEFILE} ${MAKE_ARGS} test
 
 .include <bsd.port.mk>