Bug#946235: atk1.0: please make autopkgtests cross-test-friendly

Steve Langasek steve.langasek at canonical.com
Fri Dec 6 17:41:54 GMT 2019

Hi Simon,

On Fri, Dec 06, 2019 at 09:19:30AM +0000, Simon McVittie wrote:
> On Thu, 05 Dec 2019 at 15:18:40 -0800, Steve Langasek wrote:
> > This requires changes to some tests so that they are cross-aware and can do
> > the right thing.

> Thanks for this patch. I'm assuming this is going to be the first of many
> build smoke-tests that will need similar changes when the autopkgtest
> change lands, so I'm being extra-careful when reviewing it, to try to
> get the clearest possible patches for other packages.

Indeed, there are a number of others in flight, so thanks for the feedback.

> > +if [ -n "$DEB_HOST_MULTIARCH" ]; then
> > +    export PKG_CONFIG_PATH="/usr/lib/$DEB_HOST_MULTIARCH/pkgconfig"
> > +fi
> > +${PREFIX}gcc -Wall -Werror -o atk1.0-dev_test atk1.0-dev_test.c `pkg-config --cflags --libs atk`

> I think it would be both more concise and more realistic to use
> ${PREFIX}pkg-config instead of setting PKG_CONFIG_PATH, and rely on the
> multiarch symlink to /usr/share/pkg-config-crosswrapper for the mechanics
> of finding the right library? That matches what will actually happen when
> cross-compiling with dpkg, if I understand correctly (and it's actually
> PKG_CONFIG_LIBDIR that gets set in the cross-wrapper).

As far as I see, installing crossbuild-essential-i386 + pkg-config doesn't
set up an i386-linux-gnu-pkg-config symlink.  Do you think autopkgtests
should be setting up such a symlink locally, rather than just manually
setting the path, provided that the latter works?

> Perhaps it would be clearer to name the variable CROSS_COMPILE instead of
> PREFIX, to avoid it being mixed up with other concepts also named prefix,
> like the one that is normally /usr? `make CROSS_COMPILE=i686-linux-gnu-`
> and `CC=${CROSS_COMPILE}gcc` is the convention used for the equivalent
> variable in for example Linux, Busybox and OpenSSL, so it should be
> reasonably familiar.

That seems reasonable to me.

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                                   https://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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