updated build system

scripts/env.sh

@@ -225,6 +225,11 @@ fi
 if [ "${PROJECT_ENABLE_LIBDSM}" == "ON" ]; then
   PROJECT_ENABLE_LIBICONV=ON
   PROJECT_ENABLE_LIBTASN=ON
+  if [ "${PROJECT_IS_MINGW}" ]; then
+    PROJECT_KEEP_OPENSSL=1
+  else
+    PROJECT_ENABLE_OPENSSL=ON
+  fi
 fi
 
 PROJECT_CMAKE_OPTS="-DPROJECT_3RD_PARTY_DIR=${PROJECT_3RD_PARTY_DIR} ${PROJECT_CMAKE_OPTS}"