[CMake] Cmake 2.8.4 and gcc 4.6 on OSX

Michael Allen jmallen at gmail.com
Fri May 6 13:05:28 EDT 2011

Ok so you're basically saying that I can just tell cmake that I want
to use a different compiler then, I think that would actually work
with my current compiler and cmake...

On Fri, May 6, 2011 at 12:58 PM, j s <j.s4403 at gmail.com> wrote:
> I'm really sorry I answered this question.  I personally hate
> macports, but it has its own version of cmake that won't work with the apple
> compiler:
> /opt/local/bin/cmake -Dct=/opt/local/bin/g++
> -DCMAKE_C_COMPILER=/opt/local/bin/gcc ..
> make VERBOSE=1
> /opt/local/bin/g++    -Wl,-search_paths_first
> -headerpad_max_install_names  CMakeFiles/test.dir/test.cc.o  -o test
> Regards,
> Juan
> On Fri, May 6, 2011 at 11:34 AM, Michael Allen <jmallen at gmail.com> wrote:
>> What do you mean by "Macports works?"
>> The macports gcc compiler works with a hand-compiled cmake? Does it
>> accept the apple-specific compile flags?
>> or do you mean that the macports cmake will work with a self-compiled gcc?
>> or do you mean that the macports cmake will work with the macports gcc?
>> What specific setup are you suggesting that I use to get a gcc 4.5+
>> working with cmake on osx? I'm flexible here but I need to know
>> exactly which setup works.
>> Also, is there really no way to tell cmake that I'm not using Apple's
>> compiler? It's clearly capable of doing the right thing on linux. I
>> just want to tell it to use the non-apple flags.
>> That would be the easiest since I really dislike macports. There
>> seriously needs to be a way to do this if there isn't. There are
>> plenty of people out there who work on macs that only want to use the
>> posix stuff. I feel like I even tried using macports cmake and gcc and
>> it didn't work actually.
>> On Fri, May 6, 2011 at 12:10 PM, j s <j.s4403 at gmail.com> wrote:
>>> Macports works, but be warned that if you use rtti, (exceptions,
>>> dynamic casting), make sure that you only link against C++ libraries
>>> using the same compiler.  Macports errantly uses its own system
>>> libraries in its compiler's.
>>> Juan
>>> On Fri, May 6, 2011 at 10:04 AM, Sean McBride <sean at rogue-research.com> wrote:
>>>> On Fri, 6 May 2011 10:51:57 -0400, Michael Allen said:
>>>>>I've installed a newer version of gcc because the version supplied by
>>>>>Apple is so far out of date, but I don't know how to configure cmake
>>>>>such that it uses the normal gcc flags instead of the
>>>>>Apple specific flags. Is there a way to configure cmake to use the
>>>>>appropriate flags even though I'm not using the "normal" compiler?
>>>> IMHO, a Mac compiler that does not recognise -arch is pretty broken.
>>>> Where did you get it?  I think if you use macports or fink you can get a
>>>> newer gcc that recognises the normal/typical flags.  Another option is
>>>> to use clang, which comes with recent versions of Xcode.
>>>> --
>>>> ____________________________________________________________
>>>> Sean McBride, B. Eng                 sean at rogue-research.com
>>>> Rogue Research                        www.rogue-research.com
>>>> Mac Software Developer              Montréal, Québec, Canada
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