Intel Fortran provides a message catalog that contains various compile-time diagnostic messages. When you specify the -diag-message-catalog (Linux and Mac OS) option, the compiler instructs the message routines to look up the text in the message catalog. If you do not specify this compiler option, internal messages will be used.
Use the NLSPATH environment variable to specify the location of the compiler message catalog. Note that this environment variable, which can be defined to point to multiple paths, is also used to specify the location of the run-time catalog. For more information on run-time library catalogs, see Run-Time Message Display and Format.