[89842] trunk/dports/x11/xorg-libX11/Portfile

[Ryan Schmidt]

On Feb 17, 2012, at 01:13, Joshua Root wrote:

> On 2012-2-17 18:05 , Andrea D'Amore wrote:
>> On Fri, Feb 17, 2012 at 07:53, Joshua Root <jmr at macports.org> wrote:
>> 
>>>> Wouldn't "${configure.cc} -E" be a sensible value?
>> 
>>> With gcc, that doesn't behave quite the same as running cpp. So probably
>>> not if clang is maintaining gcc compatibility in this respect.
>> 
>> How would the port compile out of Macports if only clang (say Xcode
>> 4.2) were available?
>> i.e. what program would act as preprocessor?
> 
> Clang has a preprocessor of course. But it's not clear that it provides
> something suitable to set RAWCPP to. Maybe there is some flag that makes
> it behave appropriately; I don't know.
> 
> (Xcode 4.2 still has llvm-cpp-4.2 as /usr/bin/cpp so it's not really an
> example of what you're asking about.)

Then would /usr/bin/llvm-cpp-4.2 be an appropriate value for configure.cpp when configure.compiler is clang?