Add my old micro-bunzip library.  Needs some cleanup...
diff --git a/toys.h b/toys.h
index 31ce206..7a01c2a 100644
--- a/toys.h
+++ b/toys.h
@@ -11,6 +11,7 @@
 #include <fcntl.h>
 #include <inttypes.h>
 #include <limits.h>
+#include <setjmp.h>
 #include <stdarg.h>
 #include <stdint.h>
 #include <stdio.h>