devel/mingw32-libffi: Mark DEPRECATED

- Upstream last release was in 2014
- WWW is vaporized
- mingw32 is defunct
- Add LICENSE MIT
- Pet portclippy
- Set EXPIRATION_DATE 2023-11-20

devel/mingw32-libffi/Makefile

@@ -9,17 +9,27 @@ MAINTAINER=	ports@FreeBSD.org
 COMMENT=	The libffi library cross-compiled for MinGW32
 WWW=		http://sources.redhat.com/libffi/
 
+LICENSE=	MIT
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+DEPRECATED=	Last upstream release was in 2014 and mingw32 project is defunct
+EXPIRATION_DATE=	2023-11-20
+
 BUILD_DEPENDS=	${PKGNAMEPREFIX}gcc:devel/${PKGNAMEPREFIX}gcc \
 		${LOCALBASE}/mingw32/include/stdlib.h:devel/${PKGNAMEPREFIX}bin-msvcrt
 
-SSP_UNSAFE=	fails to link
+USES=		cpe libtool
+CPE_VENDOR=	${PORTNAME}_project
+
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_PREFIX=	${PREFIX}/mingw32
 CONFIGURE_ARGS=	--host="mingw32" --enable-shared
-CC=		${PKGNAMEPREFIX}gcc
+
 CFLAGS=		-O2	# Override CFLAGS for a cross-build
-USES=		cpe libtool
-CPE_VENDOR=	${PORTNAME}_project
+SSP_UNSAFE=	fails to link
+
+CC=		${PKGNAMEPREFIX}gcc
+
 PLIST_SUB=	PORTVERSION=${PORTVERSION}
 
 post-patch: