Date: Sat, 4 Sep 2004 16:30:22 GMT From: Chris Pepper <pepper@reppep.com> To: freebsd-doc@FreeBSD.org Subject: Re: docs/71359: /usr/share/examples/etc/make.conf contains broken CXXFLAGS Message-ID: <200409041630.i84GUMXt027498@freefall.freebsd.org>
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The following reply was made to PR docs/71359; it has been noted by GNATS. From: Chris Pepper <pepper@reppep.com> To: Giorgos Keramidas <keramida@freebsd.org> Cc: Paul Mather <paul@gromit.dlib.vt.edu>, bug-followup@freebsd.org Subject: Re: docs/71359: /usr/share/examples/etc/make.conf contains broken CXXFLAGS Date: Sat, 4 Sep 2004 11:31:51 -0400 At 3:46 PM +0300 2004/09/04, Giorgos Keramidas wrote: >On 2004-09-03 23:31, Chris Pepper <pepper@reppep.com> wrote: >> >Description: > > /usr/share/examples/etc/make.conf suggests: >> CXXFLAGS+= -fmemoize-lookups -fsave-memoized >> but this prevents make buildworld in RELENG_5. >> [...] >> >Fix: >> Remove this sample from the example, or replace it with one that's >> safe under RELENG_5 > >You don't *have* to use the same CXXFLAGS options as the ones of the >example. It's an example, after all. Anyway, would you prefer something >like this instead? Of course, but the examples should all be valid. This one prevents make buildworld, so should be replaced by something that doesn't. > # CXXFLAGS controls the compiler settings used when compiling C++ code. > # Note that CXXFLAGS is initially set to the value of CFLAGS. If you wish > # to add to CXXFLAGS value, "+=" must be used rather than "=". Using "=" > # alone will remove the often needed contents of CFLAGS from CXXFLAGS. > +# For a description of the options recognized by the GNU C++ compiler > +# please refer to the c++(1) manpage and the info documentation of GCC. > # > -#CXXFLAGS+= -fmemoize-lookups -fsave-memoized > +#CXXFLAGS+= -O -pipe Except that's provided already with the example of CFLAGS, so would make sense iff CFLAGS had another example value. # CFLAGS controls the compiler settings used when compiling C code. # Note that optimization settings other than -O and -O2 are not recommended # or supported for compiling the world or the kernel - please revert any # nonstandard optimization settings to "-O" before submitting bug reports # without patches to the developers. # Note also that at this time the -O2 setting is known to expose bugs in # libalias(3), and possibly other parts of the system. # #CFLAGS= -O -pipe # # CXXFLAGS controls the compiler settings used when compiling C++ code. # Note that CXXFLAGS is initially set to the value of CFLAGS. If you wish # to add to CXXFLAGS value, "+=" must be used rather than "=". Using "=" # alone will remove the often needed contents of CFLAGS from CXXFLAGS. # #CXXFLAGS+= -fmemoize-lookups -fsave-memoized Regards, Chris Pepper -- Chris Pepper: <http://www.reppep.com/~pepper/>; Rockefeller University: <http://www.rockefeller.edu/>;
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