#8 Mochad will not compile on OSX

[Janno Schouwenburg]

MSG_SIGNAL is not available on OSX, therefore mochad will not compile on OSX. The fix is easy:

#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#ifdef SO_NOSIGPIPE
#define USE_SO_NOSIGPIPE
#endif
#endif

Just add it to mochad.c and encode.c.

[Kevin Wang]

I've attached a patch with a simple version of this fix. mmauka, can you put this in your next release?