alterad: error while loading shared libraries: libSafeString.so: cannot open shared object file: No such file or directory

Due to an unresolved dynamic library dependency in the standalone FLEXlm License Server Software installer from release 18.0 you may see the following error while runing the alterad daemon:

./alterad: error while loading shared libraries: libSafeString.so: cannot open shared object file: No such file or directory

To work around this problem, follow these steps:

1. Install any edition of Intel® Quartus® Prime software v18.0 in your license server.
2. Identify your Intel® Quartus® Prime installation path. Search for libSafeString.so in your installation path under <$QUARTUS_ROOTDIR>/quartus/linux64
3. Add libSafeString.so path to LD_LIBRARY_PATH environmental variable. e.g:
   export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<$QUARTUS_ROOTDIR>/quartus/linux64
4. Restart your FLEXlm server

This problem is fixed beginning with version 18.0 Update 1 of the Intel® Quartus® Prime software.