[M3devel] response file changes?

[Olaf Wagner]

Two short comments:

  o Response files in the target directory should be OK, as long as
    their names are unique.

  o The heuristic is built-in to arglist(pfx, array), IIRC; I wouldn't
    change that without need. You never know what depends on it, as it
    has been there for a long time.

Olaf

Quoting Jay <jayk123 at hotmail.com>:

> "response files" are files that contain command lines, to   
> overcomecommand line length limits. (Why the limits are so small?   
> Lame.)
> CM3 has built in support for them.
> I have seen them not be deleted reliably.
> While the deletion should be made more reliable, I propose they be   
> writteninto the target directory instead of "temp".
> That is, nearly all writes should be into the target directory.This   
> is what is reliably cleaned up when you run "realclean".
>
> I realize there is a tension between putting things that belong   
> together together, and reliable deletion, vs. load balancing of I/O.  
>  "Temp" is sometimes smaller/faster.
> I had already worked around this by wrapping up the response file   
> supportin Quake code that moves the file into the target directory   
> immediatelyafter creating it. I'll be able to remove that code, and   
> live with theunreliably deleted files only when using older tools.
> ?
> Also, the built in support uses a heuristic.For shorter command   
> lines, it doesn't use a response file.I found that surprising and a   
> bit disappointing.While a more immediately readable log is valuable,  
>  consistency is too.
> Leave it alone or make it always use a response file?
> The Microsoft C compiler and linker dump the output of any response   
> filethey are given, so that gets you a readable log.
>
> I don't care all that much.
> Maybe I'll just look into why the deletion is unreliable, but I   
> figure "cleanup" is always unreliable because you might control-c   
> the build, or the compiler might crash, etc. There is a "delete on   
> close" flag in Windows, but I think it has a problem in that you   
> have to keep the file open and if anyone else also opens it, they   
> might need file_share_delete, not sure. File_share_delete not being   
> supported on Win9x, maybe not much used?
>
>  - Jay
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