Why the installed program has error when loading shared library in linux (cmake)

Question

I have a question related to how to install a built executable program with cmake when it relies on some external libraries. Suppose my executable is abc, and i

Answer 1

The libraries are searched in the predefined locations which includes standard library paths configured with ld.so.conf and LD_LIBRARY_PATH. You can also try to compile your app with -rpath, but it is not recommended by some developers. I suggest you to create a wrapper script which will set LD_LIBRARY_PATH and run the real application like that:

"theapp" script:

#!/bin/sh
dir="`dirname \"$0\"`"
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}"$dir"
exec "$dir/theapp.real" # your real application

The application, script and libraries should be in the same location (under bin/).