gettext: configure
13.4.5 ‘configure.ac’ at top level
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‘configure.ac’ or ‘configure.in’ - 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=0.21
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, 0.21)
Of course, you replace ‘gettext’ with the name of your package, and
‘0.21’ by its version numbers, exactly as they should appear in the
packaged ‘tar’ file name of your distribution
(‘gettext-0.21.tar.gz’, here).
2. Check for internationalization support.
Here is the main ‘m4’ macro for triggering internationalization
support. Just add this line to ‘configure.ac’:
AM_GNU_GETTEXT([external])
This call is purposely simple, even if it generates a lot of
configure time checking and actions.
3. Have output files created.
The ‘AC_OUTPUT’ directive, at the end of your ‘configure.ac’ file,
needs to be modified in two ways:
AC_OUTPUT([EXISTING CONFIGURATION FILES po/Makefile.in],
[EXISTING ADDITIONAL ACTIONS])
The modification to the first argument to ‘AC_OUTPUT’ asks for
substitution in the ‘po/’ directory. Note the ‘.in’ suffix used
for ‘po/’ only. This is because the distributed file is really
‘po/Makefile.in.in’.