--- ./Makefile	2021-02-11 07:30:56.000000000 -0500
+++ ./Makefile	2021-03-08 22:49:58.259526000 -0500
@@ -20,7 +20,7 @@ 
 		libusrsctp.so:net/libusrsctp \
 		libopus.so:audio/opus
 
-USES=		cmake pkgconfig
+USES=		cmake pkgconfig ssl
 USE_GITHUB=	yes
 GH_ACCOUNT=	desktop-app
 GH_PROJECT=	tg_owt
@@ -33,5 +33,11 @@ 
 CXXFLAGS+=	-DNDEBUG
 
 CMAKE_OFF=	BUILD_SHARED_LIBS
+
+.include <bsd.port.options.mk>
+
+.if ${SSL_DEFAULT} == "base" && ${OPSYS} == FreeBSD && ${OSVERSION} < 1200085
+BROKEN=		This port requires OpenSSL 1.1.0. Try DEFAULT_VERSIONS+=ssl=[openssl|libressl*]
+.endif
 
 .include <bsd.port.mk>