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    On Tue, 5 Sep 2000, Alexander Viro wrote:

    >
    > The _real_ problem is preprocessor abuse. BTW, could we schedule for
    > 2.5 the following?
    > * things like CONFIG_FOO are _always_ defined. As 0 or 1, that is.
    > * #ifdef CONFIG_FOO => if (CONFIG_FOO) in *.c. gcc will kill the unused
    > branches just fine.
    > * Yes, Virginia, it means that controlflow-affecting expansion has to
    > go. Good riddance, IMO.
    >
    > Goal: making sure that every bloody line of the files we choose to
    > compile goes through the parser. Will do wonders with test coverage and will
    > make analysis tools like tags viable. Then we can just use the gcc frontend
    > output as input for such beasts.
    >


    Problem: every bloody line will go through the parser. There is too many
    lines. Compilation is realy slow today. I'm affraid this approach would
    make it worse. Note that 2.4.0-test7 has more than 2.75 milion lines.
    Or did you mean drivers will be (optionally?) excluded from this
    compile-it-all-and-then-optimize-it-away?

    I can understand advantages the if(CONFIG_FOO) approach has, but I'm not
    sure it is worth compilation slowdown.


    Martin


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    [1]+ Done rm -rf /

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