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c++ubuntulinkereclipse-cdt

POSIX IPC linker error in Eclipse CDT

I´m going to implement a IPC library, using the POSIX API. ( Ubuntu / Eclipse CDT ) Unfortunately I´m having Linker errors. The library should be available because Linux supports POSIX message queues since kernel 2.6.6.

#include <mqueue.h>
#include <sys/stat.h>
...

msgq_id = mq_open("/queueName", O_RDWR | O_CREAT | O_EXCL, S_IRWXU | S_IRWXG, NULL);

when it invokes the GCC C++ Linker it ends up in "undefined reference to `mq_open' "

I think it could be a general Linux configuration Problem.

Solution

  • I have had some issues using Eclipse CDT as well. I solved this by setting up a cmake project to be independent from the eclipse configurations.

    A good point to start is the tutorial section from cmake.org

    I hope this helps you.