In #143, the QtAll component of PythonQt is required, meaning that if we find PythonQt but not its QtAll component, we should consider that PythonQt was not found.
I thought that FIND_PACKAGE(PythonQt COMPONENTS QtAll REQUIRED) as opposed to FIND_PACKAGE(PythonQt REQUIRED COMPONENTS QtAll REQUIRED) would mean that, but actually, this second REQUIRED implies a failure of the configure step if PythonQt is not found.
In #143, the QtAll component of PythonQt is required, meaning that if we find PythonQt but not its QtAll component, we should consider that PythonQt was not found.
I thought that
FIND_PACKAGE(PythonQt COMPONENTS QtAll REQUIRED)as opposed toFIND_PACKAGE(PythonQt REQUIRED COMPONENTS QtAll REQUIRED)would mean that, but actually, this secondREQUIREDimplies a failure of the configure step if PythonQt is not found.