[DRE-maint] [Bug 539106] Re: filter_logoaway: unresolved symbol DestroyConstitute

[Marco Cimmino]

Here we go, you need a png file called example.png, whatever image should work ok.
Launch then inside the dir with: ruby example.rb

and observe the issue, thanks.

** Attachment added: "Test case for RMagick"
   https://bugs.launchpad.net/ubuntu/+source/transcode/+bug/539106/+attachment/2229276/+files/example.rb

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https://bugs.launchpad.net/bugs/539106

Title:
  filter_logoaway: unresolved symbol DestroyConstitute

Status in “librmagick-ruby” package in Ubuntu:
  Confirmed
Status in “transcode” package in Ubuntu:
  Confirmed
Status in “librmagick-ruby” source package in Lucid:
  Confirmed
Status in “transcode” source package in Lucid:
  Confirmed

Bug description:
  Binary package hint: transcode

  Hi,

  using the logoaway filter in transcode produces the following error:

  [transcode] warning: Unable to load filter logoaway:
  /usr/lib/transcode/filter_logoaway.so: undefined symbol:
  DestroyConstitute

  This is also known for other distribution (e.g. Debian) which I think
  is then an upstream problem. The problem with filter_logoway is that
  during the compilation there is no check of all used external
  funtions. A couple of months ago the API of imagemagick has changed
  and DestroyConstitute() was replaced by ConstituteComponentTerminus()
  .

  So, the solution is to change the in line 868 of
  filter/filter_logoaway.c

  DestroyConstitute(); <--> ConstituteComponentTerminus();

  I found this in the 10.04 development version, but as I said this
  error may exist also in older distributions as well.

  >lsb_release -rd
  Description:    Ubuntu lucid (development branch)
  Release:        10.04

  
  The hint in the change of the imagemagick API I found on launchpad as well:

  https://code.launchpad.net/~ubuntu-branches/ubuntu/lucid/dx/lucid

  Maybe it is worth to check other packages in lucid as well before the
  final release!

  Oliver

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