I am trying to build certain Ubuntu packages for armhf because they are not available for anything but amd64 and i386 from their source. Sometimes I get failures during the build process, and I can run "debian/rules build" after I have fixed the problem to restart that step without losing everything.
When I run into problems with "fakeroot debian/rules binary", though, the process always restarts from the beginning of the installation. This can mean 20+ minutes of wasted time, because sometimes things like doxygen are lumped into the install process, and things like that take A LOT of time on my "compile farm" of two HP Touchpads running distccd.
What I want to know is if there is a way to keep that installation step from forcibly cleaning out the temp directory where all the files are installed (which it seems to do at the beginning) and only redo what needs to be redone, like "make all" would.