irc/tircproxy: Fix build with llvm15

- Pet portclippy
- Adopt port

irc/tircproxy/Makefile

@@ -4,14 +4,21 @@ PORTREVISION=	4
 CATEGORIES=	irc
 MASTER_SITES=	http://bre.klaki.net/programs/tircproxy/
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	IRC proxy server
 
-WRKSRC=		${WRKDIR}/tircproxy-0.4
 GNU_CONFIGURE=	YES
 
+WRKSRC=		${WRKDIR}/tircproxy-0.4
+
 OPTIONS_DEFINE=	DOCS
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400079 || ( ${OSVERSION} >= 1302505 && ${OSVERSION} < 1400000 ))
+CFLAGS+=	-Wno-error=int-conversion
+.endif
+
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/tircproxy ${STAGEDIR}${PREFIX}/sbin