scgi_task: allow compiling when MSG_NOSIGNAL undefined

[barracuda156]

No description provided.

[barracuda156]

Everything else works now without patching, this is the only issue:

rpc/scgi_task.cc: In member function 'virtual void rpc::SCgiTask::event_write()':
rpc/scgi_task.cc:203:60: error: 'MSG_NOSIGNAL' was not declared in this scope
  203 |   int bytes = ::send(m_fileDesc, m_position, m_bufferSize, MSG_NOSIGNAL);
      |                                                            ^~~~~~~~~~~~
make[2]: *** [rpc/scgi_task.o] Error 1

[rakshasa]

This is an issue with your libcurl version or something, and that flag is vital.

[barracuda156]

@rakshasa No, it is absent in the system. See, for example: lpeterse/haskell-socket#8
Solaris also does not have it.

Also: https://noahdesu.github.io/2014/01/16/port-sendmsg.html

Of course, if you can suggest a better fallback, it would be far better than defining it to zero.

[stickz]

@barracuda156 @rakshasa I have submitted #1329 with a proper fix. It will detect Apple or Solaris at compile time and only disable the flag for these platforms. It's undefined anyways, so it's not going to accomplish anything.