error while loading shared libraries in sudo - c++

Question

I read documentation on https://github.com/openyou/libomron/blob/master/README.asciidoc
Exec:
cd /
sudo find . | grep libomron.so.0.9.0
result:
./home/splincode/Develop/omron/c++_modules/libomron/omron-build/lib/
Okey, I add library in global path
LD_LIBRARY_PATH=/usr/local/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/splincode/Develop/omron/c++_modules/libomron/omron-build/lib/
export LD_LIBRARY_PATH
Then it's work:
cd ~/Develop/omron/usr/local/bin/
./omron_790IT_test
But, not access in hardware, result
Found 1 omron 790ITs
Cannot open omron 790IT!
as a result, I began to run as administrator, but he does not see the library, what to do?
sudo ./omron_790IT_test
Result:
./omron_790IT_test: error while loading shared libraries: libomron.so.0.9.0: cannot open shared object file: No such file or directory

Answer 1

./omron_790IT_test: error while loading shared libraries
This is happening because by default sudo does not propagate environment variables; doing so presents a security risk.
You can deal with this in one of three ways:
Link your program in a way that doesn't require LD_LIBRARY_PATH to be set (this is the best approach).
In your case, the link command should look something like this:
gcc -o omron_790IT_test ... \
-Wl,-rpath=/home/splincode/Develop/omron/c++_modules/libomron/omron-build/lib
Explicitly set the wanted environment variable inside the sudo process:
sudo env LD_LIBRARY_PATH=... ./omron_790IT_test
Ask sudo to propagate all environment variables into the root process:
sudo -E ./omron_790IT_test
sudo --preserve-env ./omron_790IT_test