databases/ruby-tokyocabinet: Fix build with llvm16

- Add LICENSE LGPL21

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

databases/ruby-tokyocabinet/Makefile

@@ -10,6 +10,9 @@ MAINTAINER=	dgerow@afflictions.org
 COMMENT=	Ruby interface to the Tokyo Cabinet DB engine
 WWW=		https://dbmx.net/tokyocabinet/
 
+LICENSE=	LGPL21
+LICENSE_FILE=	${WRKSRC}/COPYING
+
 LIB_DEPENDS=	libtokyocabinet.so:databases/tokyocabinet
 
 USES=	ruby:extconf
@@ -20,6 +23,12 @@ DOCS=	doc/*
 
 OPTIONS_DEFINE=	DOCS
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1400091
+CONFIGURE_ARGS+=	--with-cflags="-Wno-error=incompatible-function-pointer-types"
+.endif
+
 post-install:
 	${MKDIR} ${STAGEDIR}${RUBY_MODDOCDIR}
 .for f in ${DOCS}