[mosquitto-dev] Linking C shared module mosquitto_message_timestamp.so f

[Luke Chen <lchen.dev@xxxxxxxxx>]

Hi,

I tried to build mosquitto v2.0.12 in MacOS Big Sur (version 11.5.2) with the following steps but failed with the following error message:

mosquitto % cmake -Bbuild 

...

...

-- Build files have been written to: /Users/lchen/git/mosquitto/build

mosquitto % cmake --build build

...

...

[ 91%] Building C object plugins/message-timestamp/CMakeFiles/mosquitto_message_timestamp.dir/mosquitto_message_timestamp.c.o

[ 91%] Linking C shared module mosquitto_message_timestamp.so

Undefined symbols for architecture x86_64:

  "_mosquitto_callback_register", referenced from:

      _mosquitto_plugin_init in mosquitto_message_timestamp.c.o

  "_mosquitto_callback_unregister", referenced from:

      _mosquitto_plugin_cleanup in mosquitto_message_timestamp.c.o

  "_mosquitto_property_add_string_pair", referenced from:

      _callback_message in mosquitto_message_timestamp.c.o

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

make[2]: *** [plugins/message-timestamp/mosquitto_message_timestamp.so] Error 1

make[1]: *** [plugins/message-timestamp/CMakeFiles/mosquitto_message_timestamp.dir/all] Error 2

make: *** [all] Error 2

Any help?

Thanks,

Luke