* Makefile: added all: and default: targets.
* many files: made some functions static; removed "extern int errno;".
* frozenmain.c: fixed bugs introduced on 24 June...
* flmodule.c: remove 1.5 bw compat hacks, add new functions in 2.2a
  (and some old functions that were omitted).
* timemodule.c: added MSDOS floatsleep version .
* pgenmain.c: changed exit() to goaway() and added defn of goaway().
* intrcheck.c: add hack (to UNIX only) so interrupting 3 times
  will exit from a hanging program.  The second interrupt prints
  a message explaining this to the user.
diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index 15263d3..99cdba2 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -30,10 +30,7 @@
 
 #define BUF(v) GETSTRINGVALUE((stringobject *)v)
 
-#include "errno.h"
-#ifndef errno
-extern int errno;
-#endif
+#include <errno.h>
 
 typedef struct {
 	OB_HEAD