zmq compile warnings

[czanik]

When packaging 0.4.0 on openSUSE and enable zmq support, the compilation succeeds with many warnings. On the other hand post build scripts fail with the following error:

[ 22s] E: syslog-ng-incubator 64bit-portability-issue modules/zmq/zmq-grammar.y:379

The related compilation log is:

[ 18s] CC modules/zmq/modules_zmq_libzmq_la-zmq-grammar.lo
[ 18s] modules/zmq/zmq-grammar.y: In function 'zmq_parse':
[ 18s] modules/zmq/zmq-grammar.y:379:13: warning: implicit declaration of function 'zmq_sd_new' [-Wimplicit-function-declaration]
[ 18s] last_driver = *instance = zmq_sd_new(configuration);
[ 18s] ^
[ 18s] modules/zmq/zmq-grammar.y:379:37: warning: assignment makes pointer from integer without a cast [enabled by default]
[ 18s] last_driver = *instance = zmq_sd_new(configuration);
[ 18s] ^
[ 18s] modules/zmq/zmq-grammar.y:420:13: warning: implicit declaration of function 'zmq_sd_set_address' [-Wimplicit-function-declaration]
[ 18s] zmq_sd_set_address(last_driver, $3);
[ 18s] ^
[ 18s] modules/zmq/zmq-grammar.y:426:13: warning: implicit declaration of function 'zmq_sd_set_port' [-Wimplicit-function-declaration]
[ 18s] zmq_sd_set_port(last_driver, $3);
[ 18s] ^
[ 18s] CC modules/zmq/modules_zmq_libzmq_la-zmq-plugin.lo
[ 19s] CC modules/zmq/modules_zmq_libzmq_la-zmq-destination.lo
[ 19s] modules/zmq/zmq-destination.c: In function 'zmq_worker_insert':
[ 19s] modules/zmq/zmq-destination.c:151:12: warning: unused variable 'success' [-Wunused-variable]
[ 19s] gboolean success = TRUE;
[ 19s] ^
[ 19s] CC modules/zmq/modules_zmq_libzmq_la-zmq-source.lo
[ 19s] CC modules/zmq/modules_zmq_libzmq_la-zmq-parser.lo
[ 19s] CC modules/zmq/modules_zmq_libzmq_la-zmq-transport.lo
[ 19s] modules/zmq/zmq-transport.c: In function 'log_transport_zmq_new':
[ 19s] modules/zmq/zmq-transport.c:64:20: warning: assignment from incompatible pointer type [enabled by default]
[ 19s] self->super.read = log_transport_zmq_read_method;
[ 19s] ^
[ 19s] CCLD modules/zmq/libzmq.la

[lmesz]

Hali,

Sorry, for the long not response.
I hope I fixed all the warnings that are mentioned in this issue in "zmq_warning_fixes" branch.
Sorry again but I don't know how should I assign the pull request to this issue

[juhaszviktor]

Warnings are eliminated by the PR #134