On Fri, 21 Dec 2012, Eric Botcazou wrote:
> > This runs into issues with Ada which basically does (ugh)
> >
> > #ifdef __cplusplus
> > extern "C" {
> > #endif
> >
> > #include "system.h"
> >
> > #endif __cplusplus
> > }
> > #endif
> >
> > which of course wrecks any system header doing __cplusplus
> > conditional stuff (such as gmp.h including iosfwd). The patch
> > un-kludges this by wrapping system.h inside extern "C++" when
> > compiling with the C++ frontend.
> >
> > But - really - Ada people - can you fix that on your side please?
> > (CCed people doing r176210)
>
> Like so? I cannot believe that all this fuss was about moving 3 lines within
> less than a dozen of files...
The patch looks fine to me (though it's not 100% obvious to me as not only
system headers are now no longer in extern "C" - which is why I simply
tried the un-wrapping). So, if you think that's ok please commit it.
It certainly helps not to rely on compilers handling nested extern "foo"
correctly ...
Thanks,
Richard.