cannot load shared library that exists in /usr/local/lib (Fedora x64)

Question

When attempting to run a program I just compiled successfully, I get the following error:

./src/sensors/laser_scan_producer: error while loading share

Answer 1

Thank you to @Joachim_Pileborg:

ldconfig uses the file /etc/ld.so.conf. You can add /usr/local/lib to that file, re-run ldconfig and try again

Doing so fixed the problem, although I find it odd that /usr/local/lib wouldn't have been checked in the natural course of things.

Answer 2

I found a working solution for both /usr/local/lib and /usr/local/lib64 directories in this commit.

First run this command as root to add those directories.

tee /etc/ld.so.conf.d/local.conf <<EOF
/usr/local/lib
/usr/local/lib64
EOF

Next run as root:

ldconfig