dpkg-buildpackage and new "-indep" debhelper options

[Roger Leigh]

On Tue, Dec 06, 2011 at 05:53:55PM +0100, Anton Gladky wrote:
> Hi all,
> 
> I have an eigen3 package, which uses --before option to escape
> DOC-building on all platforms.
> debian/rules is looking so now:
> 
> ====================================
> binary-indep:
> 	dh $@ --buildsystem=cmake --builddirectory=$(BUILDDIR) --before dh_auto_build
> 	cd $(BUILDDIR); $(MAKE) doc
> 	rm -f $(BUILDDIR)/doc/html/unsupported/installdox
> 	dh $@ --buildsystem=cmake --builddirectory=$(BUILDDIR) --after dh_auto_build

I think there's a fundamental issue with this --before and
--after logic: dh_auto_build is run in the /build/ rules.  It
has no place in the /binary/ rules.  If you call /any/ of the
binary sequences after the build sequences, they will already
have been run.  Additionally, you should not be running
$(MAKE) in the binary-indep rule.  Run it in build-indep,
which is there for exactly this purpose.

I've not yet seen a non-buggy use of --before and --after.
If you make proper use of override_xxx-indep and/or the
standard build-indep target, there should never be a reason
to use them.  What is preventing you from building the
docs in build-indep?

> binary-arch:
> 	dh $@ --buildsystem=cmake --builddirectory=$(BUILDDIR)
> 
> binary: binary-indep

binary *must* be dependent upon both binary-arch and binary-indep,
i.e.

binary: binary-arch binary-indep

However, if you have the generic

%:
	dh $@ --buildsystem=cmake --builddirectory=$(BUILDDIR)

then both the binary-arch and binary targets may be deleted
entirely; dh will do the right thing.

> ====================================
> override_dh_auto_build-indep:
> 	cd $(BUILDDIR); $(MAKE) doc
> 	rm -f $(BUILDDIR)/doc/html/unsupported/installdox
> ====================================
> 
> But "dpkg-buildpackage -B" as well as "pbuilder --binary-arch" are
> building DOCs, ignoring -indep option.
> What can be wrong there?

Are you using the latest debhelper?  There was an issue with
-indep in #648901.  It's fixed in 8.9.10; you might also need
to explicitly enable v9 compat mode.  That bug shouldn't
affect -B though since it's calling the -arch targets directly.
Your use of dh --before/--after may have confused things
though.


Regards,
Roger

-- 
  .''`.  Roger Leigh
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