Updating GCC

[White Hat]

--- Chuck Swiger <cswiger at mac.com> wrote:

> On Mar 22, 2007, at 12:34 PM, White Hat wrote:
> >> Add:
> >>
> >> CC?=	/usr/local/bin/gcc
> >> CXX?=	/usr/local/bin/g++
> >>
> >> ...to /etc/make.conf.  You might also find
> looking
> >> at /usr/ports/Mk/
> >> bsd.gcc.mk to be informative...
> >
> > Thanks! One other question; why the '?' mark? I
was
> > Googling for information on gcc, and it listed
> 'cxx='
> > sans a question mark in it.
> 
> It means "set CC to this value if it's not already
> set to something".
> 
> Some ports already know they need a newer version of
> gcc (using  
> "USE_GCC="), and the "make world" infrastructure to
> rebuild the  
> kernel/userland need to use the system-provided
> compiler, so using  
> the question mark lets things which know better use
> the exact  
> compiler they want.

Thanks! I could not find that information anywhere,
although I am sure it does exist.



 
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