Mark BROKEN on FreeBSD 12 and 13

Reported by:	pkg-fallout
MFH:		2019Q2

security/pvk/Makefile

@@ -17,6 +17,13 @@ LDFLAGS+=	-L${OPENSSLLIB}
 
 NO_WRKSUBDIR=	yes
 
+.include <bsd.port.pre.mk>
+
+.if ${SSL_DEFAULT} == base
+BROKEN_FreeBSD_12=	variable has incomplete type 'EVP_MD_CTX' (aka 'struct evp_md_ctx_st')
+BROKEN_FreeBSD_13=	variable has incomplete type 'EVP_MD_CTX' (aka 'struct evp_md_ctx_st')
+.endif
+
 post-patch:
 	${REINPLACE_CMD} -e 's|\(-lcrypto\)|$$(LDFLAGS) \1|g' \
 		${WRKSRC}/Makefile
@@ -26,4 +33,4 @@ do-install:
 	${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/README ${STAGEDIR}${DOCSDIR}
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>