Date: Sat, 18 Dec 2010 21:24:31 +0000 From: Alexander Best <arundel@freebsd.org> To: freebsd-hackers@freebsd.org Subject: Re: question about CFLAGS, CXXFLAGS and DEBUG_FLAGS Message-ID: <20101218212431.GA35554@freebsd.org> In-Reply-To: <20101218204047.GA4214@straylight.ringlet.net> References: <20101218200937.GA2932@freebsd.org> <20101218204047.GA4214@straylight.ringlet.net>
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On Sat Dec 18 10, Peter Pentchev wrote:
> On Sat, Dec 18, 2010 at 08:09:37PM +0000, Alexander Best wrote:
> > hi there,
> >
> > i just stumbled over these lines:
> >
> > otaku% grep -n \${DEBUG_FLAGS} /usr/share/mk/bsd.prog.mk
> > 24:CFLAGS+=${DEBUG_FLAGS}
> > 25:CXXFLAGS+=${DEBUG_FLAGS}
> >
> > is it really necessary to assign the debug flags to both CFLAGS *and* CXXFLAGS?
>
> Uhm... yes, so they can be used in both C and C++ programs :)
> ...or are you making the mistake I've made too many times (and still
> make sometimes) of confusing CXXFLAGS with CPPFLAGS? :)
*hehehe* i don't think so.
i just saw a lot of these lines in buildworld:
clang++ -O2 -pipe -DNDEBUG -g -I/usr/obj/usr/subversion-src/tmp/legacy/usr/include -I/usr/subversion-src/gnu/usr.bin/gperf/../../../contrib/gperf/lib -I/usr/subversion-src/gnu/usr.bin/gperf -g -c /usr/subversion-src/gnu/usr.bin/gperf/../../../contrib/gperf/lib/hash.cc
clang++: warning: argument unused during compilation: '-g'
clang++: warning: argument unused during compilation: '-g'
as you can see -g gets specified twice, so i thought maybe adding -g to CFLAGS makes adding it to CXXFLAGS obsolete.
cheers.
alex
>
> G'luck,
> Peter
>
> --
> Peter Pentchev roam@space.bg roam@ringlet.net roam@FreeBSD.org
> PGP key: http://people.FreeBSD.org/~roam/roam.key.asc
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> Hey, out there - is it *you* reading me, or is it someone else?
--
a13x
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