gettext: aclocal

 
 13.4.8 ‘aclocal.m4’ at top level
 --------------------------------
 
    If you do not have an ‘aclocal.m4’ file in your distribution, the
 simplest is to concatenate the files ‘gettext.m4’, ‘host-cpu-c-abi.m4’,
 ‘intlmacosx.m4’, ‘iconv.m4’, ‘lib-ld.m4’, ‘lib-link.m4’,
 ‘lib-prefix.m4’, ‘nls.m4’, ‘po.m4’, ‘progtest.m4’ from GNU ‘gettext’’s
 ‘m4/’ directory into a single file.
 
    If you already have an ‘aclocal.m4’ file, then you will have to merge
 the said macro files into your ‘aclocal.m4’.  Note that if you are
 upgrading from a previous release of GNU ‘gettext’, you should most
 probably _replace_ the macros (‘AM_GNU_GETTEXT’, etc.), as they usually
 change a little from one release of GNU ‘gettext’ to the next.  Their
 contents may vary as we get more experience with strange systems out
 there.
 
    You should be using GNU ‘automake’ 1.9 or newer.  With it, you need
 to copy the files ‘gettext.m4’, ‘host-cpu-c-abi.m4’, ‘intlmacosx.m4’,
 ‘iconv.m4’, ‘lib-ld.m4’, ‘lib-link.m4’, ‘lib-prefix.m4’, ‘nls.m4’,
 ‘po.m4’, ‘progtest.m4’ from GNU ‘gettext’’s ‘m4/’ directory to a
 subdirectory named ‘m4/’ and add the line
 
      ACLOCAL_AMFLAGS = -I m4
 
 to your top level ‘Makefile.am’.
 
    If you are using GNU ‘automake’ 1.10 or newer, it is even easier: Add
 the line
 
      ACLOCAL_AMFLAGS = --install -I m4
 
 to your top level ‘Makefile.am’, and run ‘aclocal --install -I m4’.
 This will copy the needed files to the ‘m4/’ subdirectory automatically,
 before updating ‘aclocal.m4’.
 
    These macros check for the internationalization support functions and
 related informations.  Hopefully, once stabilized, these macros might be
 integrated in the standard Autoconf set, because this piece of ‘m4’ code
 will be the same for all projects using GNU ‘gettext’.