Simple (?) Windows question

Rudi Schlatte rudi at
Fri Mar 25 09:51:34 UTC 2016

Robert Goldman <rpgoldman at> writes:

> Is there some way that a CL implementation can know whether it is
> running under a Unix-alike like Cygwin or MinGW?

The OSTYPE environment variable maybe?

(in an msys shell):
$ echo $OSTYPE

(in a cygwin shell):
$ echo $OSTYPE


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