Re: [Discuss-gnuradio] Error building with new ZMQ

[Vanush Vaswani]

https://github.com/zeromq/cppzmq/blob/master/zmq.hpp

On Tue, May 20, 2014 at 12:27 PM, Michael Dickens <address@hidden> wrote:

If I change all of the "zmq.hpp" #include lines to be instead "zmq.h", then I get the following errors:
{{{
:info:build In file included from /opt/local/var/macports/build/_opt_MacPorts_trunk_dports_science_gnuradio/gnuradio-devel/work/gnuradio-cb0bc7f070c41825ab7aee7f093dc326e62e2fdb/gr-zeromq/lib/sub_source_impl.cc:28:
:info:build /opt/local/var/macports/build/_opt_MacPorts_trunk_dports_science_gnuradio/gnuradio-devel/work/gnuradio-cb0bc7f070c41825ab7aee7f093dc326e62e2fdb/gr-zeromq/lib/sub_source_impl.h:38:7: error: use of undeclared identifier 'zmq'
:info:build       zmq::context_t  *d_context;
:info:build       ^
:info:build /opt/local/var/macports/build/_opt_MacPorts_trunk_dports_science_gnuradio/gnuradio-devel/work/gnuradio-cb0bc7f070c41825ab7aee7f093dc326e62e2fdb/gr-zeromq/lib/sub_source_impl.h:39:7: error: use of undeclared identifier 'zmq'
:info:build       zmq::socket_t   *d_socket;
:info:build       ^
}}}

So ... it seems like unless there's some standard way to get zmq.hpp then we won't be using gr-zeromq on OSX.  Any ideas?  Can someone send me that file? - MLD

On May 19, 2014, at 3:59 PM, Michael Dickens <address@hidden> wrote:
> If I look through the tarball for zmq 3.2.4 or 4.0.4, I find only zmq.h, no zmq.hpp.  From the look of it, zmq is written as mixed C/C++, and the API header is purely C (wrapped with extern "C" if included as C++).  Hence, I think the CMake Find file needs to check for both zmq.hpp and zmq.h as the header, then somehow get that info into the gr-zeromq sources. - MLD

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