diff -ur nginx-1.12.0-wolfssl/src/event/ngx_event_openssl.c nginx-1.12.0-wolfssl-debug/src/event/ngx_event_openssl.c --- nginx-1.12.0-wolfssl/src/event/ngx_event_openssl.c 2018-02-02 11:04:48.653303612 +1000 +++ nginx-1.12.0-wolfssl-debug/src/event/ngx_event_openssl.c 2018-02-02 11:05:10.313347727 +1000 @@ -144,6 +144,11 @@ #endif +#ifdef WOLFSSL_NGINX + /* Turn on internal wolfssl debugging to stdout */ + wolfSSL_Debugging_ON(); +#endif + #if OPENSSL_VERSION_NUMBER >= 0x0090800fL #ifndef SSL_OP_NO_COMPRESSION {