Pull in zlib buildlink. Fix sqlite3 variable. Add LDFLAGS.

Fixes build on SunOS.

textproc/mdocml/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.55 2016/07/14 15:26:42 wiz Exp $
+# $NetBSD: Makefile,v 1.56 2016/07/15 11:18:12 jperkin Exp $
 
 DISTNAME=	mdocml-1.13.4
 CATEGORIES=	textproc devel
@@ -25,7 +25,8 @@ post-extract:
 	${ECHO} PREFIX=${PREFIX} > ${WRKSRC}/configure.local
 	${ECHO} MANDIR=${PREFIX}/${PKGMANDIR} >> ${WRKSRC}/configure.local
 	${ECHO} CFLAGS=\"${CFLAGS:Q}\" >> ${WRKSRC}/configure.local
-	${ECHO} DBLIB=\"${LDFLAGS} -lsqlite3\" >> ${WRKSRC}/configure.local
+	${ECHO} LDFLAGS=\"${LDFLAGS:Q}\" >> ${WRKSRC}/configure.local
+	${ECHO} LD_SQLITE3=\"${LDFLAGS} -lsqlite3\" >> ${WRKSRC}/configure.local
 	${ECHO} INSTALL=\"${INSTALL:Q}\" >> ${WRKSRC}/configure.local
 	${ECHO} INSTALL_PROGRAM=\"${INSTALL_PROGRAM:Q}\" >> ${WRKSRC}/configure.local
 	${ECHO} INSTALL_LIB=\"${INSTALL_DATA:Q}\" >> ${WRKSRC}/configure.local
@@ -38,4 +39,5 @@ post-extract:
 .endif
 
 .include "../../databases/sqlite3/buildlink3.mk"
+.include "../../devel/zlib/buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"