Issues "catkin_making" rosbridge_suite in gentoo

[dcuevasa]

Description
I am trying to build this package in a Pepper Robot from Softbank Robotics, i had already built another package from the web robot tools team in Pepper succesfully so i hoped it would be easy, however i've encountered an error and have no idea how to fix it. I am terrified of bricking the robot by installing things so i hoped i could built the package and be done.

• Library Version: latest
• ROS Version: Kinetic
• Platform / OS: Gentoo

Steps To Reproduce
Clone the repository to a catkin_ws and catkin_make it.

Expected Behavior
I hoped it would be a simple build and then i could use the package, but

Actual Behavior
I get this error and i have no idea how to fix it:
Traceback (most recent call last):
File "/tmp/gentoo/opt/ros/kinetic/lib/python2.7/site-packages/geneus/geneus_main.py", line 137, in genmain
pkg_map = get_pkg_map()
File "/tmp/gentoo/opt/ros/kinetic/lib/python2.7/site-packages/geneus/geneus_main.py", line 55, in get_pkg_map
for ws in workspaces.get_spaces():
File "/tmp/gentoo/usr/lib/python2.7/site-packages/catkin_pkg/workspaces.py", line 54, in get_spaces
paths += os.environ['CATKIN_PREFIX_PATH'].split(os.pathsep) if os.environ['CATKIN_PREFIX_PATH'] else []
File "/tmp/gentoo/usr/lib/python-exec/python2.7/../../../lib/python2.7/UserDict.py", line 40, in getitem
raise KeyError(key)
KeyError: 'CATKIN_PREFIX_PATH'
ERROR: 'CATKIN_PREFIX_PATH'
make[2]: *** [rosbridge_suite/rosapi/CMakeFiles/rosapi_generate_messages_eus.dir/build.make:214: /home/nao/ros_ws/new_ws/devel/share/roseus/ros/rosapi/manifest.l] Error 3
make[1]: *** [CMakeFiles/Makefile2:1313: rosbridge_suite/rosapi/CMakeFiles/rosapi_generate_messages_eus.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....