This header file contains the following definitions:
nl_catd
used by the message catalog functions catopen, catgets and
catclose to identify a catalog
nl_item
used by nl_langinfo to identify items of langinfo data.
Values for objects of type nl_item are defined in langinfo.h
NL_SETD
used by gencat when no $set directive is specified in a
message text source file.
This constant can be used in subsequent calls
to catgets as the value of the set identifier parameter.
NL_MGSMAX
maximum number of messages per set
NL_SETMAX
maximum number of sets per catalog
NL_TEXTMAX
maximum size of a message
DEF_NLSPATH
the default search path for locating catalogs
NL_CAT_LOCALE
passed to catopen as the oflag
argument to ensure that message catalog selection is
dependent on the LC_MESSAGES locale category instead
of directly on the LANG environment variable.