[Bug 1549942] Re: php-imagick failing autopkgtests

[Steve Langasek]

> I've had a look at the ImageMagick code to see what MAGICK_THREAD_LIMIT=1
> does, and see that the same thing can be accomplished programmatically by
> calling SetMagickResourceLimit(ThreadResource, 1).  I believe that invoking
> this from the php-imagick MINIT function should be sufficient to get correct
> behavior at runtime, not just in the testsuite; I will prepare a patch here
> for testing.

Confirmed that this gives a passing testsuite without having to modify
the environment of the testsuite alone.  Please find the final debdiff
attached for your reference.

** Patch added: "php-imagick-1549942.diff"
   https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1549942/+attachment/4591113/+files/php-imagick-1549942.diff

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https://bugs.launchpad.net/bugs/1549942

Title:
  php-imagick failing autopkgtests

Status in ImageMagick:
  Fix Released
Status in imagemagick package in Ubuntu:
  Fix Released
Status in php-imagick package in Ubuntu:
  New

Bug description:
  8:6.8.9.9-7 has backported

      - PixelColor off by one on i386 (closes: #811308)
        https://github.com/ImageMagick/ImageMagick/issues/54

  but there were two commits that came after the currently backported
  changes (d6054824 and 95c8394e). The former, especially, is needed, as
  the current backport introducing a rounding bug (incorrect use of
  floor()).

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