Add SSLv2 support behind a cfg flag

Many OpenSSL distributions have SSLv2 support compiled out, so it should
be opt-in.

1 files changed, 2 insertions, 0 deletions

diff --git a/ssl/ffi.rs b/ssl/ffi.rs
index 0be09371..53a3b4f8 100644
--- a/ssl/ffi.rs
+++ b/ssl/ffi.rs
@@ -111,6 +111,8 @@ extern "C" {
 
     pub fn SSL_library_init() -> c_int;
 
+    #[cfg(sslv2)]
+    pub fn SSLv2_method() -> *SSL_METHOD;
     pub fn SSLv3_method() -> *SSL_METHOD;
     pub fn TLSv1_method() -> *SSL_METHOD;
     pub fn SSLv23_method() -> *SSL_METHOD;