How to link to third party library ?

edit

Hello

I'm still working on the communication between ROS electric and Promethe Neural Network simulator and I'm trying to rosmake a node that includes Promethe C functions. I'm using the following CMakeLists.txt :

I can rosmake witjout error but I get :

[rosmake-0] Finished <<< promROS_connector [SKIP] No rule to make target None

And no executable in bin/ . I would know if my CMakeLists is correct and what I exactly have to use to compile with third party C compiled libraries. The ~/simulateur is in ROS_PACKAGE_PATH.

Thanks for reading and answering.

cmake_minimum_required(VERSION 2.4.6)
include($ENV{ROS_ROOT}/core/rosbuild/rosbuild.cmake)

# Set the build type.  Options are:
#  Coverage       : w/ debug symbols, w/o optimization, w/ code-coverage
#  Debug          : w/ debug symbols, w/o optimization
#  Release        : w/o debug symbols, w/ optimization
#  RelWithDebInfo : w/ debug symbols, w/ optimization
#  MinSizeRel     : w/o debug symbols, w/ optimization, stripped binaries
#set(ROS_BUILD_TYPE RelWithDebInfo)

rosbuild_init()

#set the default path for built executables to the "bin" directory
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
#set the default path for built libraries to the "lib" directory
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)

#uncomment if you have defined messages
rosbuild_genmsg()
#uncomment if you have defined services
#rosbuild_gensrv()

#common commands for building c++ executables and libraries

#****************** INCLUDES **************************

include_directories(~/simulateur/prom_user/include)

include_directories(~/simulateur/libcomm/include)
include_directories(~/simulateur/libcomm/include/protocol/virtual)

include_directories(~/simulateur/prom_tools/include)
include_directories(~/simulateur/prom_kernel/include)
include_directories(~/simulateur/shared/include)

#*******************************************************

link_directories(~/simulateur/lib/Linux/comm)
rosbuild_add_executable(prom2ROS src/prom_to_ROS.cpp)
target_link_libraries(prom2ROS ~/simulateur/lib/Linux/comm/libcomm_debug)

EDIT :

After using :

 target_link_libraries(prom2ROS libcomm_debug)

the error is :

   Linking CXX executable ../bin/prom2ROS
   /usr/bin/ld: cannot find -llibcomm_debug
   collect2: ld returned 1 exit status

Does I have to set the LD_LIBRARY_PATH to allow ld to find the libcomm_debug (it is now empty - libcomm_debug is a .a static library) ?