Bug#622092: cyrus-imapd-2.2: fix for build with multiarch

[Steve Langasek]

On Sun, Apr 10, 2011 at 09:49:05AM -0300, Henrique de Moraes Holschuh wrote:
> On Sun, 10 Apr 2011, Steve Langasek wrote:
> > multiarch.  The attached patch has been applied in Ubuntu for this issue,
> > correcting this call to use --with-com_err with no argument to get the
> > default search path.

> Has this been triple-checked to do the right thing?

No, only double-checked.  I had reviewed the source of configure.in which
was how I spotted the difference between --with-com_err and
--with-com_err=/usr; but it turns out that what's actually needed is
--with-com_err= rather than --with-com_err since --with-com_err is
--equivalent to --with-com_err=yes.  Thanks for making me take a
third look at this.

> I used to have to employ extremely hard measures (aka rm -fr et/ in
> debian/rules clean) to convince the Cyrus build to not do anything
> extremely hazardous, such as using pieces of system com-err and pieces of
> cyrus com-err.  I *really* would not trust configure to not do something
> idiotic without directly checking the object files and poisoning the local
> copies of com-err to fail any build that touches them, so as to make sure
> everything is doing what it is supposed to...

After switching to --with-com_err=, I've confirmed that there are no longer
any mentions of libcom_err.a in the build log.  So I'm personally convinced
that this is sufficient, but of course if you would prefer a
fix-upstream-harder solution you are welcome to it.

Cheers,
-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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