- this program uses rabbitmq-c library (v0.3.0)
	- https://github.com/alanxz/rabbitmq-c
- library installation
	- using system package
		- install using commands below
			- aptitude install librabbitmq0
			- aptitude install librabbitmq-dev
		- note that it is likely that system packages versions are out of date (we need v0.3.0)
		  so better use installation from source
	- from source
		- retrieve source
			- wget https://github.com/alanxz/rabbitmq-c/archive/rabbitmq-c-v0.3.0.zip -O rabbitmq-c-v0.3.0.zip
			- unzip rabbitmq-c-v0.3.0.zip
			- cd rabbitmq-c-v0.3.0
		- compilation using autoconf (automake v1.9+, and libtool v2.2+)
			- autoreconf -i
				- if error occurs at this step, check requirement below
					- we require autotools v2.63 or better to build. I think RHEL5 ships with v2.59 which lacks the AC_PROC_CC_C99 macro.
						- You can do one of two things;
							- Install a newer version of autotools
							- Build using cmake (v2.6 or better).
			- ./configure --enable-static
			- make
			- make install
		- compilation using cmake (CMake v2.6+)
			- mkdir build && cd build
			- cmake -DBUILD_STATIC_LIBS=True -DBUILD_SHARED_LIBS=True ..
			- cmake --build .
			- make
				- you got error AAA below, it's normal
					make[2]: *** Pas de règle pour fabriquer la cible « librabbitmq/librabbitmq.so.1.0.1 », nécessaire pour « examples/amqp_bind ». Arrêt.
					make[1]: *** [examples/CMakeFiles/amqp_bind.dir/all] Erreur 2
					make: *** [all] Erreur 2
			- make
			  (because of the above error (AAA), you need to run make twice)
			- make install
- compilation (static)
	- gcc -static -I/usr/local/include -L/usr/local/lib -Wall -o sendAMQPMsg send_AMQP_msg.c -lrabbitmq
		- we get warning below during compilation
			- 
			  <---
			  /usr/local/lib/librabbitmq.a(librabbitmq_librabbitmq_la-amqp_socket.o): In function `amqp_open_socket':
			  rabbitmq-c-rabbitmq-c-v0.3.0/librabbitmq/amqp_socket.c:66: warning: Using 'getaddrinfo' in statically 
			  linked applications requires at runtime the shared libraries from the glibc version used for linking
			  --->
			- it means that you may need to be sure all computing node have the same glibc version !!!!
				- also means that a different binary must be use in each computing center
- usage
	- to send a message in the queue, do
		- ./sendAMQPMsg localhost 5672 test
- note
	- to show how many messages are in the queue, do as root
		- ./rabbitmqctl list_queues