12.4.4 `configure.in' at top level

`configure.in' or `configure.ac' - this is the source from which autoconf generates the `configure' script.

1. Declare the package and version.

   This is done by a set of lines like these:

   PACKAGE=gettext VERSION=0.11.2 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE") AC_DEFINE_UNQUOTED(VERSION, "$VERSION") AC_SUBST(PACKAGE) AC_SUBST(VERSION)

   or, if you are using GNU automake, by a line like this:

   AM_INIT_AUTOMAKE(gettext, 0.11.2)

   Of course, you replace `gettext' with the name of your package, and `0.11.2' by its version numbers, exactly as they should appear in the packaged tar file name of your distribution (`gettext-0.11.2.tar.gz', here).

2. Check for internationalization support.

   Here is the main m4 macro for triggering internationalization support. Just add this line to `configure.in':

   AM_GNU_GETTEXT

   This call is purposely simple, even if it generates a lot of configure time checking and actions.

   If you have suppressed the `intl/' subdirectory by calling gettextize without `--intl' option, this call should read

   AM_GNU_GETTEXT([external])

3. Have output files created.

   The AC_OUTPUT directive, at the end of your `configure.in' file, needs to be modified in two ways:

   AC_OUTPUT([existing configuration files intl/Makefile po/Makefile.in], [existing additional actions])

   The modification to the first argument to AC_OUTPUT asks for substitution in the `intl/' and `po/' directories. Note the `.in' suffix used for `po/' only. This is because the distributed file is really `po/Makefile.in.in'.

   If you have suppressed the `intl/' subdirectory by calling gettextize without `--intl' option, then you don't need to add intl/Makefile to the AC_OUTPUT line.