Hey all,

I've been playing around w/ D for a little while, and figured I would dive more into it with some side project stuff that has come up at work. The interface I am hooking up to is a zmq server, so I created a dub.json file ~ as follows:

{
    "dependencies": {
        "zeromq": "~master",
    },
    "libs": ["zmq"]
}

and tried to compile by calling 'dub'. I receive the following error:

Building zeromq ~master configuration "library", build type debug.
Running dmd...
../../.dub/packages/zeromq-master/deimos/zmq/zmq.d(96): Error: function deimos.zmq.zmq.zmq_strerror without 'this' cannot be const
FAIL ../../.dub/packages/zeromq-master/.dub/build/library-debug-linux.posix-x86_64-dmd_2066-9416B6A4CCF6909BD83BEC040E325AC7/ zeromq staticLibrary
Error executing command run: dmd failed with exit code 1.

The 0mq library exists and is linkable:
ls /usr/lib/libzmq.*
/usr/lib/libzmq.a  /usr/lib/libzmq.so  /usr/lib/libzmq.so.4  /usr/lib/libzmq.so.4.0.0

The error looks to be related to the library code, but I figure I'm just doing something stupid in build -- as there seem to be no other topics about this.

Any help would be appreciated, sorry for any glaring oversights!

On Monday, 27 October 2014 at 23:56:11 UTC, Evan Lowry wrote:
> ../../.dub/packages/zeromq-master/deimos/zmq/zmq.d(96): Error: function deimos.zmq.zmq.zmq_strerror without 'this' cannot be const

You found a bug in the binding.

Line 96 of zmq.d [1]: const char* zmq_strerror(int errnum);
Should be: const(char)* zmq_strerror(int errnum);

I think until recently dmd would accept and ignore const on a
free function, and that's how the bug got through.

[1]
https://github.com/D-Programming-Deimos/ZeroMQ/blob/79fb14b880c172e9aba9701366fd9bc15a8644b1/deimos/zmq/zmq.d#L96

On Tuesday, 28 October 2014 at 00:21:20 UTC, anonymous wrote:
> Line 96 of zmq.d [1]: const char* zmq_strerror(int errnum);
> Should be: const(char)* zmq_strerror(int errnum);

Yep, this seemed to do the trick cleanly. S'all compiling and the examples provided in the repo run. Can submit a pull request, if no-one else has one lined up.

Much thanks!

On 10/27/2014 09:02 PM, Evan Lowry wrote:
> On Tuesday, 28 October 2014 at 00:21:20 UTC, anonymous wrote:
>> Line 96 of zmq.d [1]: const char* zmq_strerror(int errnum);
>> Should be: const(char)* zmq_strerror(int errnum);
> 
> Yep, this seemed to do the trick cleanly. S'all compiling and the examples provided in the repo run. Can submit a pull request, if no-one else has one lined up.
> 
> Much thanks!
From the original commit that caused that, it seems that const(char)* was meant for that statement..?

-- 
Matt Soucy
http://msoucy.me/

On Tuesday, 28 October 2014 at 00:21:20 UTC, anonymous wrote:
> On Monday, 27 October 2014 at 23:56:11 UTC, Evan Lowry wrote:
>> ../../.dub/packages/zeromq-master/deimos/zmq/zmq.d(96): Error: function deimos.zmq.zmq.zmq_strerror without 'this' cannot be const
>
> You found a bug in the binding.
>
> Line 96 of zmq.d [1]: const char* zmq_strerror(int errnum);
> Should be: const(char)* zmq_strerror(int errnum);

Ceterum censeo ...
https://github.com/D-Programming-Language/dmd/pull/4043