Re: awk porting for platform without fork?

[Aharon Robbins]

In article <address@hidden> you write:
>> Date: Tue, 23 Jan 2007 10:31:15 +0800
>> From: "Alvis Koon" <address@hidden>
>> 
>> I would like to port awk to an environment without fork.
>
>What environment is that?
>
>> Is it possible?
>
>Yes.  Gawk already supports a couple of environments like that.
>
>> And how much work is required.
>
>Not much.  If your environment supports running the configure script,
>perhaps none at all, as the configure script will take care of
>everything for you.
>
>> Why awk use fork?  Can awk run without fork support?
>
>Gawk uses fork for some obscure features like &| pipes.  Without fork,
>these will simply be unsupported.

Gawk also uses fork() for standard features like

        system("some command")
        "some command" | getline x
        print "data" | "some command"

Brian Kernighan's awk uses fork() under the hood, through calls to popen() 
and/or system().
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