I posted an answer to a similar question yesterday here: KDevelop4: Error while loading shared libraries
In practice, LD_LIBRARY_PATH is deprecated in many Linux OS. Use config files in /etc/ld.so.conf.d for that and run ldconfig
before starting Jenkins. (see the above cited post)
EDIT [solution]:
after having discussed it in chat, the problem has been solved by adding :
#!/bin/bash
export LD_LYBRARY_PATH=${LD_LIBRARY_PATH}:<myPathForJenkins>
in a short script in /etc/profile.d/ and setting it executable with chmod +x