I sponsored the two no-change rebuilds
** Also affects: pcl (Ubuntu Artful)
Importance: Undecided
Status: Confirmed
** Description changed:
+ [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!
** Also affects: pcl (Ubuntu Zesty)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1704459
Title:
rebuild needed because dependency changed location of exported
libmpi.so library
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