gettext: AM_PO_SUBDIRS
13.5.4 AM_PO_SUBDIRS in ‘po.m4’
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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.