[Build-common-hackers] Bug#284428: cdbs: allow use of kde.mk without DEB_BUILDDIR set

[Peter Eisentraut]

Package: cdbs
Version: 0.4.25-1
Severity: normal

kde.mk automatically sets DEB_BUILDDIR = obj-$(DEB_BUILD_GNU_TYPE).
But some packages do not build cleanly with a separate build directory.
Unfortunately, it is apparently not possible to unset DEB_BUILDDIR
before or after including kde.mk.  Therefore, I have to resolve to
locally hacked copies of kde.mk.  It would be nice if using kde.mk
without DEB_BUILDDIR set were possible.