devel/mpatrol: Fix build with llvm16

- Add LICENSE GPLv2

Approved by:	portmgr (blanket)
Sponsored by:	The FreeBSD Foundation

devel/mpatrol/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	mpatrol
 PORTVERSION=	1.4.8
-PORTREVISION=	4
+PORTREVISION=	5
 CATEGORIES=	devel
 MASTER_SITES=	SF
 DISTNAME=	${PORTNAME}_${PORTVERSION}
@@ -9,6 +9,9 @@ MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Dynamic memory debugging and profiling library
 WWW=		http://mpatrol.sourceforge.net/
 
+LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/../../COPYING
+
 ONLY_FOR_ARCHS=	amd64 i386
 .if ${/usr/bin/ld:L:tA} == /usr/bin/ld.lld
 BROKEN_i386=	ld: error: relocation R_386_PC32 cannot be used against symbol __mp_init
@@ -42,6 +45,10 @@ OPTIONS_DEFINE=	DOCS
 CFLAGS+=	-DENVIRON=\"ENVIRON_64\" -DMP_INIT_SUPPORT=0
 .endif
 
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400091
+CFLAGS+=	-Wno-error=dynamic-exception-spec
+.endif
+
 do-install:
 .for file in hexwords mpedit mpsym mupdate
 	${INSTALL_SCRIPT} ${WRKSRC}/../../bin/${file} ${STAGEDIR}${PREFIX}/bin