When using CDBS, what is the best way to conditionally apply an architecture-dependent patch. I'm using CDBS, but not yet using a patch system such as simple-patchsys, dpatch, or quilt, so recommendations of a patch system are welcome. Currently I have... ARCH64 := alpha amd64 ia64 ifneq (,$(filter $(DEB_HOST_ARCH),$(ARCH64))) configure/foo:: patch -p1 <debian/patches/arch64.diff endif Cheers, Shaun