Hi Hanspeter,
Sorry for the confusion, I should've been clearer.
It is possible to compile gccxml using the default clang on the machine. It's
just that the latest clang installation has some headers that drive gccxml
crazy at runtime. As far as I understand, by giving this setting to the
application (GCCXML_COMPILER=llvm-gcc also works by the way...), gccxml
encounters headers that it can actually parse correctly.
Cheers,
Attila
On 8 Aug 2013, at 23:41, Hanspeter Niederstrasser <[email protected]>
wrote:
> On 8/8/2013 5:24 PM, Attila Krasznahorkay wrote:
>> Hi Hanspeter,
>>
>> It's worth mentioning that gccxml doesn't play all that nicely with the
>> current version (4.2.1) of clang. In order to get it to work, one has to
>> force it to use gcc as its "backend". There are multiple ways of doing it,
>> but the simplest is to put
>>
>> GCCXML_COMPILER=gcc
>>
>> into one's environment.
>
> From this upstream commit [1], it seems that the compiler used to build
> gccxml and the compiler gccxml uses at runtime can be separated.
>
> So in your example above, I take it you mean that if clang is used to compile
> gccxml, GCCXML_COMPILER=gcc must be set so that 'gcc' is used for parsing
> input files, because parsing with clang will fail.
>
> Since 'gcc' is rather indeterminate, would compiling with gcc-fsf-4.8 (Fink's
> name for the gcc48 compiler) make it then automatically use that as the
> 'backend'?
>
> Hanspeter
>
> [1]
> https://github.com/gccxml/gccxml/commit/1bfbbe93ae16e97b010fb111305d169e3dcfd5a4
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