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Annotation of embedaddon/libiconv/srcm4/00gnulib.m4, revision 1.1.1.1

1.1       misho       1: # 00gnulib.m4 serial 2
                      2: dnl Copyright (C) 2009 Free Software Foundation, Inc.
                      3: dnl This file is free software; the Free Software Foundation
                      4: dnl gives unlimited permission to copy and/or distribute it,
                      5: dnl with or without modifications, as long as this notice is preserved.
                      6: 
                      7: dnl This file must be named something that sorts before all other
                      8: dnl gnulib-provided .m4 files.  It is needed until such time as we can
                      9: dnl assume Autoconf 2.64, with its improved AC_DEFUN_ONCE semantics.
                     10: 
                     11: # AC_DEFUN_ONCE([NAME], VALUE)
                     12: # ----------------------------
                     13: # Define NAME to expand to VALUE on the first use (whether by direct
                     14: # expansion, or by AC_REQUIRE), and to nothing on all subsequent uses.
                     15: # Avoid bugs in AC_REQUIRE in Autoconf 2.63 and earlier.  This
                     16: # definition is slower than the version in Autoconf 2.64, because it
                     17: # can only use interfaces that existed since 2.59; but it achieves the
                     18: # same effect.  Quoting is necessary to avoid confusing Automake.
                     19: m4_version_prereq([2.63.263], [],
                     20: [m4_define([AC][_DEFUN_ONCE],
                     21:   [AC][_DEFUN([$1],
                     22:     [AC_REQUIRE([_gl_DEFUN_ONCE([$1])],
                     23:       [m4_indir([_gl_DEFUN_ONCE([$1])])])])]dnl
                     24: [AC][_DEFUN([_gl_DEFUN_ONCE([$1])], [$2])])])
                     25: 
                     26: # gl_00GNULIB
                     27: # -----------
                     28: # Witness macro that this file has been included.  Needed to force
                     29: # Automake to include this file prior to all other gnulib .m4 files.
                     30: AC_DEFUN([gl_00GNULIB])