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1 | ############################################################################## |
2 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
3 | # |
4 | # Copyright (C) 2004, 2005, 2007, 2008 Free Software 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 | ]) |
125 | |