Dear Maintainer, I just tried to have a look and might found something.
As far as I see ldd searches the shared objects based on the RPATH in the executable: benutzer@debian:~$ ldd /usr/bin/CloudCompare | grep "not found" libQCC_IO_LIB.so => not found libQCC_DB_LIB.so => not found libCC_CORE_LIB.so => not found benutzer@debian:~$ chrpath /usr/bin/CloudCompare /usr/bin/CloudCompare: RUNPATH=lib/x86_64-linux-gnu/cloudcompare I tried to find a similar situation in another binary and found paplay: benutzer@debian:~$ chrpath -l /usr/bin/paplay /usr/bin/paplay: RUNPATH=/usr/lib/x86_64-linux-gnu/pulseaudio So I guess this relative path in CloudCompare seems to be the issue. This seems to be set when installed to the packaging directory [1]: -- Installing: /<<PKGBUILDDIR>>/debian/cloudcompare/usr/bin/CloudCompare -- Set runtime path of "/<<PKGBUILDDIR>>/debian/cloudcompare/usr/bin/CloudCompare" to "lib/x86_64-linux-gnu/cloudcompare" -- Installing: /<<PKGBUILDDIR>>/debian/cloudcompare/usr/share/cloudcompare/CHANGELOG.md I found this file in which CMAKE_INSTALL_RPATH gets set: ./CMakeLists.txt:34: set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_LIBDIR}/cloudcompare") As far as I see CMAKE_INSTALL_LIBDIR is given by dh_auto_configure and therefore may be meant to be a relative path. Therefore I searched other examples of setting CMAKE_INSTALL_RPATH and found that a package built with following change at least shows no longer an error in ldd. +++ cloudcompare-2.10.1/CMakeLists.txt - set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_LIBDIR}/cloudcompare") + set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/cloudcompare") Kind regards, Bernhard [1] https://buildd.debian.org/status/fetch.php?pkg=cloudcompare&arch=amd64&ver=2.10.1-1&stamp=1547783795&raw=0
Description: Modify CMAKE_INSTALL_RPATH to have an absolute path Author: Bernhard Ãbelacker <bernha...@mailbox.org> Bug: https://github.com/CloudCompare/CloudCompare/issues/861 Bug-Debian: https://bugs.debian.org/928986 Forwarded: no Last-Update: 2019-05-15 --- cloudcompare-2.10.1.orig/CMakeLists.txt +++ cloudcompare-2.10.1/CMakeLists.txt @@ -31,7 +31,7 @@ if( UNIX AND NOT APPLE ) if( NOT CMAKE_INSTALL_LIBDIR ) set( CMAKE_INSTALL_LIBDIR ${CMAKE_INSTALL_PREFIX}/lib CACHE PATH "CloudCompare lib dir" ) endif( NOT CMAKE_INSTALL_LIBDIR ) - set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_LIBDIR}/cloudcompare") + set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/cloudcompare") endif() # CCViewer