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Diffstat (limited to 'm4/ltsugar.m4')
-rw-r--r-- | m4/ltsugar.m4 | 124 |
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1 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- | ||
2 | # | ||
3 | # Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software | ||
4 | # Foundation, Inc. | ||
5 | # Written by Gary V. Vaughan, 2004 | ||
6 | # | ||
7 | # This file is free software; the Free Software Foundation gives | ||
8 | # unlimited permission to copy and/or distribute it, with or without | ||
9 | # modifications, as long as this notice is preserved. | ||
10 | |||
11 | # serial 6 ltsugar.m4 | ||
12 | |||
13 | # This is to help aclocal find these macros, as it can't see m4_define. | ||
14 | AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) | ||
15 | |||
16 | |||
17 | # lt_join(SEP, ARG1, [ARG2...]) | ||
18 | # ----------------------------- | ||
19 | # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their | ||
20 | # associated separator. | ||
21 | # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier | ||
22 | # versions in m4sugar had bugs. | ||
23 | m4_define([lt_join], | ||
24 | [m4_if([$#], [1], [], | ||
25 | [$#], [2], [[$2]], | ||
26 | [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) | ||
27 | m4_define([_lt_join], | ||
28 | [m4_if([$#$2], [2], [], | ||
29 | [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) | ||
30 | |||
31 | |||
32 | # lt_car(LIST) | ||
33 | # lt_cdr(LIST) | ||
34 | # ------------ | ||
35 | # Manipulate m4 lists. | ||
36 | # These macros are necessary as long as will still need to support | ||
37 | # Autoconf-2.59, which quotes differently. | ||
38 | m4_define([lt_car], [[$1]]) | ||
39 | m4_define([lt_cdr], | ||
40 | [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], | ||
41 | [$#], 1, [], | ||
42 | [m4_dquote(m4_shift($@))])]) | ||
43 | m4_define([lt_unquote], $1) | ||
44 | |||
45 | |||
46 | # lt_append(MACRO-NAME, STRING, [SEPARATOR]) | ||
47 | # ------------------------------------------ | ||
48 | # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. | ||
49 | # Note that neither SEPARATOR nor STRING are expanded; they are appended | ||
50 | # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). | ||
51 | # No SEPARATOR is output if MACRO-NAME was previously undefined (different | ||
52 | # than defined and empty). | ||
53 | # | ||
54 | # This macro is needed until we can rely on Autoconf 2.62, since earlier | ||
55 | # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. | ||
56 | m4_define([lt_append], | ||
57 | [m4_define([$1], | ||
58 | m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) | ||
59 | |||
60 | |||
61 | |||
62 | # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) | ||
63 | # ---------------------------------------------------------- | ||
64 | # Produce a SEP delimited list of all paired combinations of elements of | ||
65 | # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list | ||
66 | # has the form PREFIXmINFIXSUFFIXn. | ||
67 | # Needed until we can rely on m4_combine added in Autoconf 2.62. | ||
68 | m4_define([lt_combine], | ||
69 | [m4_if(m4_eval([$# > 3]), [1], | ||
70 | [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl | ||
71 | [[m4_foreach([_Lt_prefix], [$2], | ||
72 | [m4_foreach([_Lt_suffix], | ||
73 | ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, | ||
74 | [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) | ||
75 | |||
76 | |||
77 | # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) | ||
78 | # ----------------------------------------------------------------------- | ||
79 | # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited | ||
80 | # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. | ||
81 | m4_define([lt_if_append_uniq], | ||
82 | [m4_ifdef([$1], | ||
83 | [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], | ||
84 | [lt_append([$1], [$2], [$3])$4], | ||
85 | [$5])], | ||
86 | [lt_append([$1], [$2], [$3])$4])]) | ||
87 | |||
88 | |||
89 | # lt_dict_add(DICT, KEY, VALUE) | ||
90 | # ----------------------------- | ||
91 | m4_define([lt_dict_add], | ||
92 | [m4_define([$1($2)], [$3])]) | ||
93 | |||
94 | |||
95 | # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) | ||
96 | # -------------------------------------------- | ||
97 | m4_define([lt_dict_add_subkey], | ||
98 | [m4_define([$1($2:$3)], [$4])]) | ||
99 | |||
100 | |||
101 | # lt_dict_fetch(DICT, KEY, [SUBKEY]) | ||
102 | # ---------------------------------- | ||
103 | m4_define([lt_dict_fetch], | ||
104 | [m4_ifval([$3], | ||
105 | m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), | ||
106 | m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) | ||
107 | |||
108 | |||
109 | # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) | ||
110 | # ----------------------------------------------------------------- | ||
111 | m4_define([lt_if_dict_fetch], | ||
112 | [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], | ||
113 | [$5], | ||
114 | [$6])]) | ||
115 | |||
116 | |||
117 | # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) | ||
118 | # -------------------------------------------------------------- | ||
119 | m4_define([lt_dict_filter], | ||
120 | [m4_if([$5], [], [], | ||
121 | [lt_join(m4_quote(m4_default([$4], [[, ]])), | ||
122 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), | ||
123 | [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl | ||
124 | ]) | ||