From owner-freebsd-current  Wed Apr  7 21:38:30 1999
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Date: Thu, 8 Apr 1999 14:36:24 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199904080436.OAA11412@godzilla.zeta.org.au>
To: bde@zeta.org.au, jdp@polstra.com
Subject: Re: /sys/boot, egcs vs. gcc, -Os
Cc: current@FreeBSD.ORG
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>> Actually, they don't.  Compiler-specific options can be put in ${CC}.
>> Perhaps they even should be.
>
>But in this case, we want "-Os" (egcs) or "-O2" (gcc) only for
>building boot -- not for everything.  It could be parameterized with
>make macros like "OPT_SMALL" and "OPT_FAST" in the *.mk files, I
>suppose.

"CC+=-Os" in individual Makefiles works about as well as "CFLAGS+=-Os" for
adding flags.  That's not very well.  Removing unwanted additions is hard.

BTW, boot2/Makefile uses "CFLAGS=" to override any previous definition
of CFLAGS.  This may break `make world' by removing -nostdinc.

Bruce


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