Bug#822834: FTBFS as root because of perldoc

[Uli Martens]

Hello Dominique,

tl;dr: the redirection works fine

On Sat, Apr 30, 2016 at 05:26:54PM +0200, Dominique Dumont wrote:
> Weird, I don't have any issue when building moarvm with cowbuilder.

I should clarify that I've been trying to build interactively in
sudo pbuilder --login, not some "build this .dsc/directory" mode because
I've still been figuring out what I need to backport. But that shouldn't
matter.

> That said, I'm not thrilled at the idea of using an undocumented option.

Ack.

> In moarvm case, using perldoc ... docs/moar.pod > debian/moar.1 provides a 
> similat result.
> 
> I've tested this with gbp and cowbuild. Could you test this patch on your side 
> with pbuilder ?

I've now tried running the build (and perldoc) with this modified
makefile snippets:

        perldoc -F -onroff -U -ddebian/moar.A \
                -w center:MoarVM \
                -w "release:MoarVM-$(MOAR_VERSION)" \
                -w "date:$(MOAR_DATE)" \
                docs/moar.pod
        perldoc -F -onroff \
                -w center:MoarVM \
                -w "release:MoarVM-$(MOAR_VERSION)" \
                -w "date:$(MOAR_DATE)" \
                docs/moar.pod > debian/moar.B

That is, once as it's in the official version plus -U, and once without the
-d$file but with redirection. The output files were bit-identical, but the
moar.A file was chmod 600, the redirected one was chmod 644. As the file gets
installed by dh_installman, that should be irrelevant.

youam / Uli