group.of.nepali.translators team mailing list archive

[Łukasz Zemczak <1704459@xxxxxxxxxxxxxxxxxx>]

The version of pcl in the proposed pocket of Xenial that was purported
to fix this bug report has been removed because the bugs that were to be
fixed by the upload were not verified in a timely (105 days) fashion.

** Tags removed: verification-needed-xenial

** Changed in: pcl (Ubuntu Xenial)
       Status: Fix Committed => Won't Fix

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https://bugs.launchpad.net/bugs/1704459

Title:
  rebuild needed because dependency changed location of exported
  libmpi.so library

Status in pcl package in Ubuntu:
  Fix Released
Status in pcl source package in Xenial:
  Won't Fix
Status in proj source package in Xenial:
  Fix Committed
Status in pcl source package in Zesty:
  Fix Released
Status in proj source package in Zesty:
  Fix Released
Status in pcl source package in Artful:
  Fix Released
Status in proj source package in Artful:
  Fix Released

Bug description:
  [Impact]

   * This bug prevents users to link dynamically against pcl libraries
   * There is no upload required as rebuilding the package is enough to fix the bug

  [Test Case]

   * install libpcl-dev
     * apt-get update && apt-get install libpcl-dev
   * mkdir -p /tmp/test_pcl/src && cd /tmp/test_pcl
   * echo "#include <pcl/common/io.h>" > src/foo.cpp
   * create a CMakeLists.txt
  ```
  find_package(PCL REQUIRED)

  option(BUILD_SHARED_LIBS "Build shared libs" ON)
  include_directories(${PCL_INCLUDE_DIRS})
  add_library(foolib src/foo.cpp)
  target_link_libraries(foolib ${PCL_LIBRARIES})
  ```
   * mkdir build && cd build
   * cmake ..
   * make
  This produces the error message:
  ```
  make[2]: *** No rule to make target '/usr/lib/libmpi.so', needed by 'libfoolib.so'. Stop.
  CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/foolib.dir/all' failed
  make[1]: *** [CMakeFiles/foolib.dir/all] Error 2
  ```

  [Patch]
   * Rebuild the package
   * Test case passes once the package rebuilt

  [Regression Potential]

   * Given that the patch is just a rebuild I don't see a potential for regression
  Package: libpcl-dev (1.8.0+dfsg1-4ubuntu4) (on Zesty)

  Source of the bug: last build of vtk6 exports libmpi.so in
  /usr/lib/x86_64-linux-gnu/openmpi/lib and not /usr/lib/openmpi/lib
  anymore.

  Impact: unable to link libraries against pcl-dev without [hacky
  workaround](https://github.com/ros-
  perception/perception_pcl/commit/42683bd4069c3a8bcec56d6c4e686d9e8643e77b)

  Changelog introducing the bug:
  ```
  vtk6 (6.3.0+dfsg1-3) unstable; urgency=medium

    * Rebuild against new multiarch enabled openmpi, Closes: #848785 
  ```

  Solution: rebuild libpcl-dev against libvtk6-dev (6.3.0+dfsg1-3)

  
  Thanks!

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