* winsup.h: Eliminate inclusion of most of the cygwin .h files. Use .h files

only in sources which require them.
* Makefile.in: Generate dependencies with -MD option.

winsup/cygwin/fhandler.cc

@@ -15,6 +15,8 @@ details. */
 #include <stdlib.h>
 #include <string.h>
 #include "cygerrno.h"
+#include "fhandler.h"
+#include "path.h"
 
 static NO_COPY const int CHUNK_SIZE = 1024; /* Used for crlf conversions */