Re: [Boost-users] [signals2] compilation issues with gcc4.4 and -pedantic

Subject: Re: [Boost-users] [signals2] compilation issues with gcc4.4 and -pedantic
From: sguazt (marco.guazzone_at_[hidden])
Date: 2011-05-12 10:53:49

On Thu, May 12, 2011 at 4:50 PM, sguazt <marco.guazzone_at_[hidden]> wrote:
> On Thu, May 12, 2011 at 11:03 AM, Christophe Bourez <boost_at_[hidden]> wrote:
>> The following code:
>>
>> #include <boost/signals2.hpp>
>> int main(int , char *[]) { return 0; }
>>
>> compiles fine with gcc-4.1 and gcc-4.2 and the -pedantic option, but
>> generates the following errors using gcc-4.4 with the same compiling
>> options:
>>
>> /home/build/repository/boost-1.46.1-2/gcc-4.4/include/boost/signals2/detail/preprocessed_arg_type_template.hpp:21:
>> error: invoking macro BOOST_SIGNALS2_PREFIXED_ARGS_TEMPLATE_DECL argument 2:
>> empty macro arguments are undefined in ISO C90 and ISO C++98
>> /home/build/repository/boost-1.46.1-2/gcc-4.4/include/boost/signals2/detail/preprocessed_arg_type_template.hpp:21:
>> error: invoking macro BOOST_PP_CAT argument 1: empty macro arguments are
>> undefined in ISO C90 and ISO C++98
>> /home/build/repository/boost-1.46.1-2/gcc-4.4/include/boost/signals2/detail/preprocessed_arg_type_template.hpp:21:
>> error: invoking macro BOOST_PP_CAT_I argument 1: empty macro arguments are
>> undefined in ISO C90 and ISO C++98
>>
>> Adding the option -std=c++0x removes these errors, but I am supporting
>> legacy code that does not compile with -std=c++0x
>>
>> Is there any workaround or patch I could apply ?
>>
>
> Hi,
>
> I don't get the error of the OP, but (after having done svn "update")
> if now I try to compile the above code with GCC 4.5.1, I get another
> error:
>
[cut]
>
> Cheers,
>

Sorry,
I've just redone "svn update" and now with the new changes all work fine.

Thank you very much!

Best,

-- Marco