I have some troubles to run test_shm_mq;

what I did includes:

1.   ./configure --enable-debug

2.   make world  // doesn't see the test_shm_mq on the output

3.   make install-world // doesn't see the test_shm_mq.control under the install directory.

4.   CREATE EXTENSION test_shm_mq;  ==> .  could not open extension control file "/.../share/postgresql/extension/test_shm_mq.control": No such file or directory

how can I get it work?  Thanks