gettext: AM_PO_SUBDIRS

 
 13.5.4 AM_PO_SUBDIRS in ‘po.m4’
 -------------------------------
 
    The ‘AM_PO_SUBDIRS’ macro prepares the ‘po/’ directories of the
 package for building.  This macro should be used in internationalized
 programs written in other programming languages than C, C++, Objective
 Languages:: for a list of programming languages that support
 localization through PO files.
 
    The ‘AM_PO_SUBDIRS’ macro determines whether internationalization
 should be used.  If so, it sets the ‘USE_NLS’ variable to ‘yes’,
 otherwise to ‘no’.  It also determines the right values for Makefile
 variables in each ‘po/’ directory.