[Bug 1671955] Re: FTBFS: undefined references - affects zesty/all arches (orthanc-webviewer 2.2-1)

[Tiago Stürmer Daitx]

** Summary changed:

- orthanc-webviewer 2.2-1 ftbfs on all arches
+ FTBFS: undefined references - affects zesty/all arches (orthanc-webviewer 2.2-1)

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Title:
  FTBFS: undefined references - affects zesty/all arches (orthanc-
  webviewer 2.2-1)

Status in orthanc-webviewer package in Ubuntu:
  Confirmed
Status in orthanc-webviewer package in Debian:
  New

Bug description:
  orthanc-webviewer 2.2-1 has been recently imported from Debian,
  unfortunately it FTBFS on all arches on zesty [1].

  The failure is triggered when linking CXX shared library
  libOrthancWebViewer.so and causes quite a few "undefined reference" in
  GdcmImageDecoder.cpp.o

  The root cause is the out-of-order argument for the gdcm library. This
  bug was introduced by the debian/patches/cmake (packaged since 1.1)
  where cmake's target_link_libraries for gdcm was replaced by a manual
  reference in LINK_FLAGS. The issue is that libraries should never be
  added to LINK_FLAGS (which behaves as LD_FLAGS in make) as they end up
  being declared before the objects that need them, instead the correct
  way is to rely on cmake's commands for that (there is no other
  equivalent to make's LD_LIBS).

  [1] https://launchpad.net/ubuntu/+source/orthanc-webviewer/2.2-1

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