Still no luck with the preprocessor problem. Using clang -E still returns an
error:
:info:build clang -E -IMENUS ARB_GDEmenus.source >ARB_GDEmenus
:info:build clang: warning: ARB_GDEmenus.source: 'linker' input unused when
'-E' is present
:info:build clang: warning: argument unused during compilation: '-I MENUS'
On Nov 13, 2011, at 10:37 PM, Joshua Root wrote:
> You don't appear to actually be using clang in the output you quoted, but
> rather 'cc', which is linked to llvm-gcc-4.2 on your system. I don't know if
> clang -E would behave significantly differently, but it's well worth checking.
>
> - Josh
>
> On 2011-11-14 13:19 , Matthew Cottrell wrote:
>> Using "$(CC) -E" did not succeed because it left an input file unused.
>>
>> :info:build cc -E -IMENUS ARB_GDEmenus.source>ARB_GDEmenus
>> :info:build i686-apple-darwin11-llvm-gcc-4.2: ARB_GDEmenus.source: linker
>> input file unused because linking not done
>>
>> Would it be too brittle to simply use /usr/bin/cpp?
>>
>> That seems to work just fine:
>>
>> :info:build cpp -IMENUS ARB_GDEmenus.source>ARB_GDEmenu
>>
>> But I don't want to create a situation that will break for some folks.
>>
>>
>> On Nov 13, 2011, at 8:57 PM, Ryan Schmidt wrote:
>>
>>>
>>> On Nov 13, 2011, at 19:27, Matthew Cottrell wrote:
>>>
>>>> I'm trying to use the right compiler, but ${configure.cpp} is empty on my
>>>> system. How do I satisfy a port that needs cpp?
>>>>
>>>> I do have the other stuff
>>>>
>>>> ${configure.cc}=/Developer/usr/bin/clang
>>>> ${configure.cxx}=/Developer/usr/bin/clang++
>>>
>>> configure.cpp should be populated for most compilers, but MacPorts does not
>>> set the CPP environment variable for you; doing so caused problems for more
>>> ports than it solved.
>>>
>>> If you have a port that needs CPP set, set it yourself, as in:
>>>
>>> configure.env CPP=${configure.cpp}
>>>
>>> But I do see that configure.cpp is empty when the compiler is clang.
>>> Typically, when $(CPP) is empty, software will use "$(CC) -E". So you could
>>> try setting it that way.
--
Matthew Cottrell
Lewes, DE 19958
http://www.mattcottrell.org
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