% scons -Q --cache-disable cc -o hello.o -c hello.c cc -o hello hello.o % scons -Q -c Removed hello.o Removed hello % scons -Q --cache-disable cc -o hello.o -c hello.c cc -o hello hello.o % scons -Q --cache-force scons: `.' is up to date. % scons -Q scons: `.' is up to date.