116 lines
3.9 KiB
Plaintext
116 lines
3.9 KiB
Plaintext
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# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
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#
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# Copyright (C) 2004 Free Software Foundation, Inc.
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# Written by Gary V. Vaughan.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# As a special exception to the GNU General Public License, if you
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# distribute this file as part of a program that contains a
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# configuration script generated by Autoconf, you may include it under
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# the same distribution terms that you use for the rest of that program.
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# serial 1
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# This is to help aclocal find these macros, as it can't see m4_define.
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AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
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# lt_join(SEP, ARG1, [ARG2...])
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# -----------------------------
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# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
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# associated separator.
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m4_define([lt_join],
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[m4_case([$#],
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[0], [m4_fatal([$0: too few arguments: $#])],
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[1], [],
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[2], [[$2]],
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[m4_ifval([$2],
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[m4_ifval([$3],
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[[$2][$1][]$0([$1], m4_shiftn(2, $@))],
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[m4_if([$#], [3],
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[$2],
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[$0([$1], [$2], m4_shiftn(3, $@))])])],
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[$0([$1], m4_shiftn(2, $@))])])[]dnl
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])
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# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
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# ----------------------------------------------------------
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# Produce a SEP delimited list of all paired combinations of elements of
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# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
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# has the form PREFIXmINFIXSUFFIXn.
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m4_define([lt_combine],
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[m4_if([$2], [[]], [],
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[lt_join(m4_quote(m4_default([$1], [, ])),
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_$0([$1], m4_car($2)[$3], m4_shiftn(3, $@)),
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$0([$1], m4_cdr($2), m4_shiftn(2, $@)))])])
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m4_define([_lt_combine],
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[m4_if([$3], [], [],
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[lt_join(m4_quote(m4_default([$1], [, ])),
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[$2$3],
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$0([$1], [$2], m4_shiftn(3, $@)))])[]dnl
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])
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# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
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# -----------------------------------------------------------------------
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# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
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# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
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m4_define([lt_if_append_uniq],
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[m4_ifdef([$1],
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[m4_bmatch($3[]m4_defn([$1])$3, $3[]m4_re_escape([$2])$3,
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[$5],
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[m4_append([$1], [$2], [$3])$4])],
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[m4_append([$1], [$2], [$3])$4])])
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# lt_dict_add(DICT, KEY, VALUE)
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# -----------------------------
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m4_define([lt_dict_add],
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[m4_define([$1($2)], [$4])])
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# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
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# --------------------------------------------
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m4_define([lt_dict_add_subkey],
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[m4_define([$1($2:$3)], [$4])])
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# lt_dict_fetch(DICT, KEY, [SUBKEY])
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# ----------------------------------
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m4_define([lt_dict_fetch],
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[m4_ifval([$3],
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m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
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m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
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# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
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# -----------------------------------------------------------------
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m4_define([lt_if_dict_fetch],
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[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
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[$5],
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[$6])])
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# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
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# ------------------------------------------------------------
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m4_define([lt_dict_filter],
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[m4_if([$5], [], [],
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[lt_join(m4_quote(m4_default([$4], [[, ]])),
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m4_quote(lt_if_dict_fetch([$1], [$5], [$2], [$3], [$5])),
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m4_quote($0([$1], [$2], [$3], [$4], m4_shiftn(5, $@))))])dnl
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])
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