merge r2995, r2996, r2997, r2998, r3003, r3141, r3210, r3211, r3232: various SSL fixes and features: *) $ssl_client_verify *) "ssl_verify_client ask" was changed to "ssl_verify_client optional" *) ssl_crl *) delete OpenSSL pre-0.9.7 compatibility: the sources were not actually compatible with OpenSSL 0.9.6 since ssl_session_cache introduction *) fix memory corruption in $ssl_client_cert *) issue SNI warning instead of failure: this is too common case *) use ngx_log_error(), since OpenSSL does not set an error on the failure *) add SNI support in -V output

// stub module to test header files' C++ compatibilty

extern "C" {
  #include <ngx_config.h>
  #include <ngx_core.h>
  #include <ngx_event.h>
  #include <ngx_event_connect.h>
  #include <ngx_event_pipe.h>

  #include <ngx_http.h>

  #include <ngx_mail.h>
  #include <ngx_mail_pop3_module.h>
  #include <ngx_mail_imap_module.h>
  #include <ngx_mail_smtp_module.h>
}

// nginx header files should go before other, because they define 64-bit off_t
// #include <string>


void
ngx_cpp_test_handler(void *data)
{
    return;
}