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1 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
2 | # | |
3 | # Copyright (C) 2004, 2005 Free Software Foundation, Inc. | |
4 | # Written by Gary V. Vaughan. | |
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 3 ltsugar.m4 | |
11 | ||
12 | # This is to help aclocal find these macros, as it can't see m4_define. | |
13 | AC_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 | m4_define([lt_join], | |
21 | [m4_case([$#], | |
22 | [0], [m4_fatal([$0: too few arguments: $#])], | |
23 | [1], [], | |
24 | [2], [[$2]], | |
25 | [m4_ifval([$2], | |
26 | [[$2][]m4_foreach(_lt_Arg, lt_car([m4_shiftn(2, $@)]), | |
27 | [_$0([$1], _lt_Arg)])], | |
28 | [$0([$1], m4_shiftn(2, $@))])])[]dnl | |
29 | ]) | |
30 | m4_define([_lt_join], | |
31 | [m4_ifval([$2],[$1][$2])[]dnl | |
32 | ]) | |
33 | ||
34 | ||
35 | # lt_car(LIST) | |
36 | # lt_cdr(LIST) | |
37 | # ------------ | |
38 | # Manipulate m4 lists. | |
39 | # These macros are necessary as long as will still need to support | |
40 | # Autoconf-2.59 which quotes differently. | |
41 | m4_define([lt_car], [[$1]]) | |
42 | m4_define([lt_cdr], | |
43 | [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], | |
44 | [$#], 1, [], | |
45 | [m4_dquote(m4_shift($@))])]) | |
46 | m4_define([lt_unquote], $1) | |
47 | ||
48 | ||
49 | # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) | |
50 | # ---------------------------------------------------------- | |
51 | # Produce a SEP delimited list of all paired combinations of elements of | |
52 | # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list | |
53 | # has the form PREFIXmINFIXSUFFIXn. | |
54 | m4_define([lt_combine], | |
55 | [m4_if([$2], [], [], | |
56 | [m4_if([$4], [], [], | |
57 | [lt_join(m4_quote(m4_default([$1], [[, ]])), | |
58 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_prefix, [$2], | |
59 | [m4_foreach(_Lt_suffix, lt_car([m4_shiftn(3, $@)]), | |
60 | [_Lt_prefix[]$3[]_Lt_suffix ])])))))])])dnl | |
61 | ]) | |
62 | ||
63 | ||
64 | # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) | |
65 | # ----------------------------------------------------------------------- | |
66 | # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited | |
67 | # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. | |
68 | m4_define([lt_if_append_uniq], | |
69 | [m4_ifdef([$1], | |
70 | [m4_bmatch($3[]m4_defn([$1])$3, $3[]m4_re_escape([$2])$3, | |
71 | [$5], | |
72 | [m4_append([$1], [$2], [$3])$4])], | |
73 | [m4_append([$1], [$2], [$3])$4])]) | |
74 | ||
75 | ||
76 | # lt_dict_add(DICT, KEY, VALUE) | |
77 | # ----------------------------- | |
78 | m4_define([lt_dict_add], | |
79 | [m4_define([$1($2)], [$4])]) | |
80 | ||
81 | ||
82 | # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) | |
83 | # -------------------------------------------- | |
84 | m4_define([lt_dict_add_subkey], | |
85 | [m4_define([$1($2:$3)], [$4])]) | |
86 | ||
87 | ||
88 | # lt_dict_fetch(DICT, KEY, [SUBKEY]) | |
89 | # ---------------------------------- | |
90 | m4_define([lt_dict_fetch], | |
91 | [m4_ifval([$3], | |
92 | m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), | |
93 | m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) | |
94 | ||
95 | ||
96 | # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) | |
97 | # ----------------------------------------------------------------- | |
98 | m4_define([lt_if_dict_fetch], | |
99 | [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], | |
100 | [$5], | |
101 | [$6])]) | |
102 | ||
103 | ||
104 | # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) | |
105 | # -------------------------------------------------------------- | |
106 | m4_define([lt_dict_filter], | |
107 | [m4_if([$5], [], [], | |
108 | [lt_join(m4_quote(m4_default([$4], [[, ]])), | |
109 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), | |
110 | [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl | |
111 | ]) |