Merge branch 'ew/daemon-socket-keepalive' into next

Portability fix.

* ew/daemon-socket-keepalive:
  Windows: add missing definition of ENOTSOCK

Author: gitster

compat/mingw.h

@@ -73,6 +73,9 @@ typedef int pid_t;
 #ifndef ECONNABORTED
 #define ECONNABORTED WSAECONNABORTED
 #endif
+#ifndef ENOTSOCK
+#define ENOTSOCK WSAENOTSOCK
+#endif
 
 struct passwd {
 	char *pw_name;