source: mod_gnutls/m4/ltsugar.m4 @ 4addf74

debian/masterdebian/stretch-backportsjessie-backportsupstream upstream/0.7
Last change on this file since 4addf74 was 4addf74, checked in by Daniel Kahn Gillmor <dkg@…>, 4 years ago

Imported Upstream version 0.7

  • Property mode set to 100644
File size: 4.3 KB
Line 
1# ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
2#
3# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
4# Written by Gary V. Vaughan, 2004
5#
6# This file is free software; the Free Software Foundation gives
7# unlimited permission to copy and/or distribute it, with or without
8# modifications, as long as this notice is preserved.
9
10# serial 6 ltsugar.m4
11
12# This is to help aclocal find these macros, as it can't see m4_define.
13AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
14
15
16# lt_join(SEP, ARG1, [ARG2...])
17# -----------------------------
18# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
19# associated separator.
20# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
21# versions in m4sugar had bugs.
22m4_define([lt_join],
23[m4_if([$#], [1], [],
24       [$#], [2], [[$2]],
25       [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
26m4_define([_lt_join],
27[m4_if([$#$2], [2], [],
28       [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
29
30
31# lt_car(LIST)
32# lt_cdr(LIST)
33# ------------
34# Manipulate m4 lists.
35# These macros are necessary as long as will still need to support
36# Autoconf-2.59 which quotes differently.
37m4_define([lt_car], [[$1]])
38m4_define([lt_cdr],
39[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
40       [$#], 1, [],
41       [m4_dquote(m4_shift($@))])])
42m4_define([lt_unquote], $1)
43
44
45# lt_append(MACRO-NAME, STRING, [SEPARATOR])
46# ------------------------------------------
47# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
48# Note that neither SEPARATOR nor STRING are expanded; they are appended
49# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
50# No SEPARATOR is output if MACRO-NAME was previously undefined (different
51# than defined and empty).
52#
53# This macro is needed until we can rely on Autoconf 2.62, since earlier
54# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
55m4_define([lt_append],
56[m4_define([$1],
57           m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
58
59
60
61# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
62# ----------------------------------------------------------
63# Produce a SEP delimited list of all paired combinations of elements of
64# PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
65# has the form PREFIXmINFIXSUFFIXn.
66# Needed until we can rely on m4_combine added in Autoconf 2.62.
67m4_define([lt_combine],
68[m4_if(m4_eval([$# > 3]), [1],
69       [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
70[[m4_foreach([_Lt_prefix], [$2],
71             [m4_foreach([_Lt_suffix],
72                ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
73        [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
74
75
76# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
77# -----------------------------------------------------------------------
78# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
79# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
80m4_define([lt_if_append_uniq],
81[m4_ifdef([$1],
82          [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
83                 [lt_append([$1], [$2], [$3])$4],
84                 [$5])],
85          [lt_append([$1], [$2], [$3])$4])])
86
87
88# lt_dict_add(DICT, KEY, VALUE)
89# -----------------------------
90m4_define([lt_dict_add],
91[m4_define([$1($2)], [$3])])
92
93
94# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
95# --------------------------------------------
96m4_define([lt_dict_add_subkey],
97[m4_define([$1($2:$3)], [$4])])
98
99
100# lt_dict_fetch(DICT, KEY, [SUBKEY])
101# ----------------------------------
102m4_define([lt_dict_fetch],
103[m4_ifval([$3],
104        m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
105    m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
106
107
108# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
109# -----------------------------------------------------------------
110m4_define([lt_if_dict_fetch],
111[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
112        [$5],
113    [$6])])
114
115
116# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
117# --------------------------------------------------------------
118m4_define([lt_dict_filter],
119[m4_if([$5], [], [],
120  [lt_join(m4_quote(m4_default([$4], [[, ]])),
121           lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
122                      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
123])
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