Get rid of exit_code in struct thread.
tree5ab1ad7fb18e13dda9da090c7e16bf11f4c372c6
-rw-r--r-- 1233 AUTHORS
-rw-r--r-- 4621 LICENSE
-rw-r--r-- 244 Makefile
drwxr-xr-x - doc
drwxr-xr-x - specs
drwxr-xr-x - src
drwxr-xr-x - tests