Allow building with `-Werror=undef`

zeromq / zmqpp

0mq 'highlevel' C++ bindings

http://zeromq.github.io/zmqpp

Mozilla Public License 2.0

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Closed emwap closed 3 years ago

emwap commented 3 years ago

#if will create an error when building with -Werror=undef. The same test is done with #ifdef in other places in the code.

emwap commented 3 years ago

Thanks for the quick merge. Will the be a release with this fix too?