Re: 6.0 and -O2 option

From: Rene Ladan (r.c.ladan_at_student.tue.nl)
Date: 08/28/05

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    Date: Sun, 28 Aug 2005 17:09:47 +0200
To: Boris Samorodov <bsam@ipt.ru>

    On Sun, Aug 28, 2005 at 04:30:19PM +0400, Boris Samorodov wrote:
    > Hi!
    >
    >
    > As for 5.x notes about -O2 (libalias, gcc) were removed at revision
    > 1.229.2.7 of /usr/src/share/examples/etc/make.conf. But for 6.0-BETA3
    > we do have these warnings. Should they be removed as for 5.x? Is it
    > safe to use -O2 to build/install kernel, world, ports fro 6.0?
    >
    Kernel and world seem to be ok with -O2, for ports it is not advised.
    I have this in /etc/make.conf:

    # -- all -- #
    .if ${.CURDIR:M/usr/src*}
    CFLAGS=-O2 -pipe
    .else
    CFLAGS=-O -pipe
    .endif

    CPUTYPE?=pentium3

    # -- ports -- #
    WITH_OPTIMIZED_CFLAGS=yes

    So kernel and world (which source lives in /usr/src) are built with -O2,
    while anything else is built with -O. Some ports allow optimized
    compiler flags with WITH_OPTIMIZED_CFLAGS.

    > WBR
    > --
    > bsam
    >
    Regards,
    Rene 

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