On Wed, 2016-10-05 at 08:03 +0000, Adel Boutros wrote:
> Hello,
>
>
> We are trying to compile Proton on Solaris. We have stumbled upon the
> usage of macro (__attribute__) which is only available in GCC and not
> on SunStudio.
In this case the simplest thing to do I believe is turn off symbol
hiding (there is a build option for this)
>
>
> In proton-c/bindings/cpp/include/proton/internal/export.hpp:
>
> # define PN_CPP_EXPORT __attribute ((visibility ("default")))
>
>
> Checking GCC definition of "__attribute " and "visibility", it seems
> that default visibility does nothing because it is the default
> behavior.
>
>
> Is there a reason for this definition? If not, can we safely define
> PN_CPP_EXPORT and PN_CPP_CLASS_IMPORT to empty macro in that case in
> the "#else" part?
I think this in conjunction with turning off symbol hiding will be
fine. Obviously you will then have many more symbols exported than
necessary - you may want to look into a linker symbol map for proton-c
to cut them down again to the ones actually needed.
Andrew
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