Use "#include <errno.h>" instead of "extern int errno;". Suggested by
[mmh] / zotnet / mts /
drwxr-xr-x   ..
-rw-r--r-- 1736 Makefile.in
-rw-r--r-- 9695 client.c
-rw-r--r-- 8666 mts.c
-rw-r--r-- 1379 mts.h