Re: [sigc] Build failed

[Kjell Ahlstedt <kjell ahlstedt bredband net>]

2013-03-07 15:05, Chris Vine skrev:
> On Thu, 07 Mar 2013 10:35:42 +0100
> Kjell Ahlstedt <kjell ahlstedt bredband net> wrote:
> > If libsigc++ can't be built on Mac OS X I'd like to know why, and
> > what can be done about it.
> > The error messages says that no definition is available for
> > std::basic_ostream<>& std::operator<<(std::basic_ostream<>&, const
> > std::basic_string<>&).
> > I thought #include <iostream> should fix that. Is any other include
> > file necessary in OS X?
> > You can try with removing the SIGC_USING_STD macros. They are
> > unnecessary since many years. But I'd be surprised if it fixes your
> > problem.
> Including <ostream>, which is where std::ostream/std::basic_ostream are
> defined, may do it.  C++98 only requires <iostream> to declare the
> standard stream objects (not classes) (§27.3), which I guess it could
> do by only including <iosfwd>.  <ostream> is also where operator::<<()
> for stream objects is declared.  <istream> defines the
> std::istream/std::iostream/std::basic_istream/std::basic_iostream
> classes and templates and declares operator::>>().
>
> C++11 seems to require <iostream> to include <ostream> (§27.4.1), so
> the -std=c++0x compiler flag may also have the desired effect.
>
> Chris
Hi Maxime,

Any progress? If libsigc++ must be changed in order to build it on Mac 
OS X, I recommend that you file a bug in Bugzilla. But I will need your 
help to test the changes. I have no access to a computer with OS X.

Kjell