libhpcalcs: portable (Windows / MacOS X / Linux) connectivity kit library

[debrouxl]

LD_LIBRARY_PATH contains a list of folders separated by ":", and is used by the dynamic linker (part of the program loading sequence) to find shared objects.
Alternatively, /etc/ld.so.conf can be modified, or files can be added to the /etc/ld.so.conf.d folder. Under my Debian sid install, there's a file in /etc/ld.so.conf.d which points to /usr/local/lib.