[Patch] Add support for CloudABI

[Ed Schouten]

Hello config.guess/config.sub maintainers,

I am currently in the process of releasing a UNIX-like environment
called CloudABI, designed by my company Nuxi. CloudABI is a UNIX-like
binary interface that is purely built on the concept of
capability-based security. CloudABI is not an operating system on its
own; it is just an ABI. CloudABI support has already been implemented
for FreeBSD, but my plan is to work on other systems (e.g., Linux) in
the nearby future.

Today I performed the first public release of CloudABI's runtime and C library:

https://github.com/NuxiNL/cloudlibc

I would hereby like to request the addition of CloudABI to config.sub:

diff --git a/config.sub b/config.sub
index 88307c1..092c42e 100755
--- a/config.sub
+++ b/config.sub
@@ -1373,7 +1373,7 @@ case $os in
       | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
       | -sym* | -kopensolaris* | -plan9* \
       | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-      | -aos* | -aros* \
+      | -aos* | -aros* | -cloudabi* \
       | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
       | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
       | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \

This makes it possible for me to use triples such as "x86_64-nuxi-cloudabi".

Best regards,
-- 
Ed Schouten <address@hidden>