LOCPATH is an environment variable that tells the setlocale() function the name of the directory from which to load locale object files. If LOCPATH is not defined, the default directory /usr/lib/nls/locale is searched. LOCPATH is similar to the PATH environment variable; it contains a list of z/OS UNIX directories separated by colons. For detailed information on how setlocale() searches for locale object files, see the description of setlocale() in z/OS XL C/C++ Runtime Library Reference.