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Say, for example, I am solving a problem for someone. I know they are on x64. Is there a way to set the build preference to x64 before x86?

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Is there a way to set the build preference to x64 before x86?

Well, AFAIK builds are scheduled in parallel, it just depends on where you are in the queue (x86_64 is typically more backed up than i386). If you wish to build an Architecture-All package only for x64, then you can simply modify the debian/control file, changing all instances of Architecture: all to Architecture: amd64; that way no i386 build will take place.

If you really need something built now, you could also change the urgency in the changelog to jump ahead in the queue, but one has to be mindful about misuse if this is purely a personal-type PPA build :) IMO I would simply dpkg-buildpackage it if this was a one-off thing.

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