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Re:Cosmopolitan Third Edition by CharlesW on Thursday November 02, 2023 @12:01AM (#38108858)
> First count is the point of POSIX is any OS vendor doesn’t need to worry about any other OS compatibility. Just implement POSIX interfaces.

I must be missing something. How are you getting from "just implement POSIX interfaces" to "compile once run everywhere"?

Wouldn't the former just promise that you could compile the same source on any POSIX-compliant OSs and get a binary that runs on that OS, on that architecture?

Re:Cosmopolitan Third Edition by gavindean90 on Friday November 03, 2023 @11:16PM (#38137826)
It's because cosmos implements POSIX in a portable way