Usage: qtchooser { -l | -list-versions | -print-env } qtchooser -install [-f] [-local] <name> <path-to-qmake> qtchooser -run-tool=<tool name> [-qt=<Qt version>] [program arguments] <executable name> [-qt=<Qt version>] [program arguments] Environment variables accepted: QTCHOOSER_RUNTOOL name of the tool to be run (same as the -run-tool argument) QT_SELECT version of Qt to be run (same as the -qt argument)