Date: Fri, 9 Apr 1999 17:00:59 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, green@unixhelp.org Cc: current@FreeBSD.ORG, jdp@polstra.com Subject: Re: /sys/boot, egcs vs. gcc, -Os Message-ID: <199904090700.RAA26586@godzilla.zeta.org.au>
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>> "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.
>Why don't we have a -= operator in make(1)?
Substitution can replace -= in may cases, e.g.:
CC:= ${CC:S/-Os//}
This is "hard" because it has to be coded in the makefile, while additions
can be passed to make.
Bruce
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