On Wed, Oct 19, 2011 at 10:26:50AM -0700, Joey Hess wrote:
> Marcin Owsiany wrote:
> > Consider a following snippet:
> >
> > | ifneq (,$(findstring libgadu-doc, $(shell dh_listpackages)))
> > | override_dh_installdocs:
> > | dh_installdocs
> > | # nicer name for api docs directory
> > | mv debian/libgadu-doc/usr/share/doc/libgadu-doc/html \
> > | debian/libgadu-doc/usr/share/doc/libgadu-doc/api
> > | endif
>
> How can this possibly work? the ifneq is parsed when make parses the
> makefile, well before dh does anything. So of course it lists all
> packages.
Correct me if I'm wrong, but I was under the impression that make is ran
twice on debian/rules:
dpkg-buildpackage
|
\_ make -f debian/rules <target> (1)
|
\_ dh <target>
|
\_ make -Rrnspf debian/rules debhelper-fail-me (2)
I also thought that in (1) the override_* targets do not play any role. It's
only in (2) that it matters what override_* targets are defined, because that's
how dh decides which of them to call instead of the dh_* commands. And I
assumed that dh sets up the environment in such way that dh_listpackage knows
what <target> is being built. Isn't that how this works?
> > I've noticed that the example in the 8.9.0 manpage has the ifneq/endif
>
> There is no such example in debhelper 8.9.0,
I mean this piece:
| Sometimes, you may need to make an override target only run commands
| when a particular package is being built. This can be accomplished
| using dh_listpackages(1) to test what is being built. For example:
|
| #!/usr/bin/make -f
| %:
| dh $@
|
| override_dh_fixperms:
| dh_fixperms
| ifneq (,$(filter foo, $(shell dh_listpackages)))
| chmod 4755 debian/foo/usr/bin/foo
| endif
Perhaps that was added by ubuntu?
mowsiany@beczulka:~$ LANG=C dpkg -l debhelper
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==============-==============-============================================
ii debhelper 8.9.0ubuntu1 helper programs for debian/rules
> except possibly a fuzzy one
> in the Spanish man page, and that one puts the ifneq inside the target,
> which I think probably does work.
Right, that's what I meant by "part of the rule".
> The new way to accomplish this is to use override_dh_installdocs-indep
Oh, nice. Which version is this available from?
--
Marcin Owsiany <porri...@debian.org> http://marcin.owsiany.pl/
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