Bug#380499: [Build-common-hackers] Bug#380499: cdbs 0.4.45 simple-patchsys.mk doesn't properly distinguish patches

[Peter Eisentraut]

Christopher Martin wrote:
> Notice how debian/patches/04_am_maintainer_mode.diff is skipped
> because "it's already applied" even though it clearly isn't? There is
> a similarly named but different patch,
> debian/patches/common/04_am_maintainer_mode.diff, which is perhaps
> confusing CDBS.

We need a per-patch stamp file to fix various other misbehaviors, which 
is why this sort of setup is out of luck.  Apparently someone thought 
that the actual patch directory should be read-only, so devising a 
patch stamp naming scheme that can handle this is a bit tricky.

Currently we have

    $(call cdbs_update_stamp,debian/stamp-patch-$$(basename $$patch))

Considering that the patch directory can be chosen arbitrarily (a 
feature that you make use of), we can't just stick the directory name 
in there.

Anyone got an idea?