I think waelfarouk0 means some IDE. Which operating system? As Joorin said, try to start your IDE using $ LD_LIBRARY_PATH=/opt/appname/lib qtcreator If you want it to always do it, put export LD_LIBRARY_PATH=/opt/appname/lib into file .bashrc or .bash_profile (including the dot) in your home directory and relogin. But you said "not Qt", so which IDE?