Fix unused variable 'libver' warning in Modules/_ssl.c
It can be seen on various buildbots like 3.x.cea-indiana-amd64
and 3.x.murray-snowleopard:
/export/home/buildbot/64bits/3.x.cea-indiana-amd64/build/Modules/_ssl.c:2227: warning: unused variable 'libver'
/Users/buildbot/buildarea/3.x.murray-snowleopard/build/Modules/_ssl.c:2227: warning: unused variable ‘libver’
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index d2b6500..1117b55 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -2224,7 +2224,9 @@
PySSLContext *self;
long options;
SSL_CTX *ctx = NULL;
+#if defined(SSL_MODE_RELEASE_BUFFERS)
unsigned long libver;
+#endif
PySSL_BEGIN_ALLOW_THREADS
if (proto_version == PY_SSL_VERSION_TLS1)