annotate m4/00gnulib.m4 @ 448:5cccf90bf838 3.0 tip

Fixed bug with complex external references generating invalid relocations in the object file
author lost@l-w.ca
date Fri, 05 Nov 2010 22:27:00 -0600
parents b8bf63962a99
children
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1 # 00gnulib.m4 serial 2
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2 dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 dnl This file must be named something that sorts before all other
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8 dnl gnulib-provided .m4 files. It is needed until such time as we can
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9 dnl assume Autoconf 2.64, with its improved AC_DEFUN_ONCE semantics.
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10
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11 # AC_DEFUN_ONCE([NAME], VALUE)
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12 # ----------------------------
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13 # Define NAME to expand to VALUE on the first use (whether by direct
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14 # expansion, or by AC_REQUIRE), and to nothing on all subsequent uses.
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15 # Avoid bugs in AC_REQUIRE in Autoconf 2.63 and earlier. This
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16 # definition is slower than the version in Autoconf 2.64, because it
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17 # can only use interfaces that existed since 2.59; but it achieves the
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18 # same effect. Quoting is necessary to avoid confusing Automake.
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19 m4_version_prereq([2.63.263], [],
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20 [m4_define([AC][_DEFUN_ONCE],
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21 [AC][_DEFUN([$1],
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22 [AC_REQUIRE([_gl_DEFUN_ONCE([$1])],
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23 [m4_indir([_gl_DEFUN_ONCE([$1])])])])]dnl
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24 [AC][_DEFUN([_gl_DEFUN_ONCE([$1])], [$2])])])
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25
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26 # gl_00GNULIB
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27 # -----------
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28 # Witness macro that this file has been included. Needed to force
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29 # Automake to include this file prior to all other gnulib .m4 files.
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30 AC_DEFUN([gl_00GNULIB])