13.5.6 AM_XGETTEXT_OPTION in ‘po.m4’

The AM_XGETTEXT_OPTION macro registers a command-line option to be used in the invocations of xgettext in the ‘po/’ directories of the package.

For example, if you have a source file that defines a function ‘error_at_line’ whose fifth argument is a format string, you can use

AM_XGETTEXT_OPTION([--flag=error_at_line:5:c-format])

to instruct xgettext to mark all translatable strings in ‘gettext’ invocations that occur as fifth argument to this function as ‘c-format’.

See Invoking the xgettext Program for the list of options that xgettext accepts.

The use of this macro is an alternative to the use of the ‘XGETTEXT_OPTIONS’ variable in ‘po/Makevars’.

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