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Subject: Re: [9front] Patch cc to create .$O files with DMTMP
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Quoth Jacob Moody <moody@mail.posixcafe.org>:
> Hello,
> 
> I often have times where I find I have left build artifacts around the system from forgetting
> to run mk clean. I thought it might be nice for the compiler to create the files with DMTMP
> to prevent them from getting added to fs dumps.
> 
> 
> Thanks,
> moody
> 
> --- //.git/fs/object/6ae0cd0d48a1b852f4a00c09aa8056e9062b1cf1/tree/sys/src/cmd/cc/lex.c
> +++ sys/src/cmd/cc/lex.c
> @@ -229,7 +229,7 @@
>  			dup(2, 1);
>  		}
>  	} else {
> -		c = mycreat(outfile, 0664);
> +		c = mycreat(outfile, 0664 | DMTMP);
>  		if(c < 0) {
>  			diag(Z, "cannot open %s - %r", outfile);
>  			outfile = 0;
> 

Makes sense to me -- easy to regenerate files
that change a lot probably shouldn't go into
the dump by default.

will commit soon.