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paule0a29622004-08-19 04:34:29 +00001# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
2#
3# Copyright (C) 2004 Free Software Foundation, Inc.
4# Written by Gary V. Vaughan.
5#
6# This program is free software; you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation; either version 2 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful, but
12# WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14# General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19#
20# As a special exception to the GNU General Public License, if you
21# distribute this file as part of a program that contains a
22# configuration script generated by Autoconf, you may include it under
23# the same distribution terms that you use for the rest of that program.
24
25# serial 1
26
27# This is to help aclocal find these macros, as it can't see m4_define.
28AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
29
30
31# lt_join(SEP, ARG1, [ARG2...])
32# -----------------------------
33# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
34# associated separator.
35m4_define([lt_join],
36[m4_case([$#],
37 [0], [m4_fatal([$0: too few arguments: $#])],
38 [1], [],
39 [2], [[$2]],
40 [m4_ifval([$2],
41 [m4_ifval([$3],
42 [[$2][$1][]$0([$1], m4_shiftn(2, $@))],
43 [m4_if([$#], [3],
44 [$2],
45 [$0([$1], [$2], m4_shiftn(3, $@))])])],
46 [$0([$1], m4_shiftn(2, $@))])])[]dnl
47])
48
49
50# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
51# ----------------------------------------------------------
52# Produce a SEP delimited list of all paired combinations of elements of
53# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
54# has the form PREFIXmINFIXSUFFIXn.
55m4_define([lt_combine],
56[m4_if([$2], [[]], [],
57 [lt_join(m4_quote(m4_default([$1], [, ])),
58 _$0([$1], m4_car($2)[$3], m4_shiftn(3, $@)),
59 $0([$1], m4_cdr($2), m4_shiftn(2, $@)))])])
60m4_define([_lt_combine],
61[m4_if([$3], [], [],
62 [lt_join(m4_quote(m4_default([$1], [, ])),
63 [$2$3],
64 $0([$1], [$2], m4_shiftn(3, $@)))])[]dnl
65])
66
67
68# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
69# -----------------------------------------------------------------------
70# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
71# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
72m4_define([lt_if_append_uniq],
73[m4_ifdef([$1],
74 [m4_bmatch($3[]m4_defn([$1])$3, $3[]m4_re_escape([$2])$3,
75 [$5],
76 [m4_append([$1], [$2], [$3])$4])],
77 [m4_append([$1], [$2], [$3])$4])])
78
79
80# lt_dict_add(DICT, KEY, VALUE)
81# -----------------------------
82m4_define([lt_dict_add],
83[m4_define([$1($2)], [$4])])
84
85
86# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
87# --------------------------------------------
88m4_define([lt_dict_add_subkey],
89[m4_define([$1($2:$3)], [$4])])
90
91
92# lt_dict_fetch(DICT, KEY, [SUBKEY])
93# ----------------------------------
94m4_define([lt_dict_fetch],
95[m4_ifval([$3],
96 m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
97 m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
98
99
100# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
101# -----------------------------------------------------------------
102m4_define([lt_if_dict_fetch],
103[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
104 [$5],
105 [$6])])
106
107
108# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
109# ------------------------------------------------------------
110m4_define([lt_dict_filter],
111[m4_if([$5], [], [],
112 [lt_join(m4_quote(m4_default([$4], [[, ]])),
113 m4_quote(lt_if_dict_fetch([$1], [$5], [$2], [$3], [$5])),
114 m4_quote($0([$1], [$2], [$3], [$4], m4_shiftn(5, $@))))])dnl
115])