recompiling a file

[David Faure]

-obelix- dfaure 16:43 /mnt/devel/kde/src/trunk/KDE/kdelibs>./scons -c build/kdeui/kcombobox.os
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Cleaning targets ...
Removed build/kdeui/kcombobox.moc
Removed build/kdeui/kcombobox.os
scons: done cleaning targets.

-obelix- dfaure 16:43 /mnt/devel/kde/src/trunk/KDE/kdelibs>./scons build/kdeui/kcombobox.os
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
Retrieved `build/kdeui/kcombobox.moc' from cache
Retrieved `build/kdeui/kcombobox.os' from cache
scons: done building targets.

How do I _really_ recompile a file, short of removing the whole cache?

-- 
David Faure, faure at kde.org, sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).