Hi, I need to install Qt on a machine. Following the INSTALL, I need to export the path as QTDIR=/usr/local/qt PATH=$QTDIR/bin:$PATH MANPATH=$QTDIR/doc/man:$MANPATH LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH Now in .bash_profile for "user" a PATH is already defined. Would the QTDIR interfer ? Thanks a lot Edouard