build option survey

From: Poul-Henning Kamp (phk_at_phk.freebsd.dk)
Date: 07/31/05

  • Next message: Giorgos Keramidas: "mmap bug?" 
    To: current@freebsd.org
Date: Sun, 31 Jul 2005 15:23:47 +0200

    I'm working on a script which will survey the various build options
    (NO_FOO, NO_BAR etc) and what their impact is on the installed system
    footprint.

            http://phk.freebsd.dk/misc/kernel_options/HTML/

    The table shows size of the total installworld image, including
    the GENERIC kernel.

    Delta is the number of blocks compared to a full installworld, and
    no, I'm not quite sure yet why some of them take more space.

    Number of extra files and number of eliminated files (these link
    to a "mtree -f -f" output file so you can see which they were.

    When done chewing, all the options will be tested for their effect
    during "installworld only", "buildworld only" and "build+installworld"
    usage.

    When completed, this script will end up under src/tools/tools

    Poul-Henning

    PS: Interestingly, this survey has theological implications as well
    as it proves the long held belief that C++ is evil: The NO_CXX
    option which prevents the installation of this evilness eliminates
    exactly 666 files :-) 

    -- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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