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| 5564 | serge | 1 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
| 2 | # |
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| 3 | # Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software |
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| 4 | # Foundation, Inc. |
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| 5 | # Written by Gary V. Vaughan, 2004 |
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| 6 | # |
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| 7 | # This file is free software; the Free Software Foundation gives |
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| 8 | # unlimited permission to copy and/or distribute it, with or without |
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| 9 | # modifications, as long as this notice is preserved. |
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| 10 | |||
| 11 | # serial 6 ltsugar.m4 |
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| 12 | |||
| 13 | # This is to help aclocal find these macros, as it can't see m4_define. |
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| 14 | AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) |
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| 15 | |||
| 16 | |||
| 17 | # lt_join(SEP, ARG1, [ARG2...]) |
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| 18 | # ----------------------------- |
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| 19 | # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their |
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| 20 | # associated separator. |
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| 21 | # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier |
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| 22 | # versions in m4sugar had bugs. |
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| 23 | m4_define([lt_join], |
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| 24 | [m4_if([$#], [1], [], |
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| 25 | [$#], [2], [[$2]], |
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| 26 | [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) |
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| 27 | m4_define([_lt_join], |
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| 28 | [m4_if([$#$2], [2], [], |
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| 29 | [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) |
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| 30 | |||
| 31 | |||
| 32 | # lt_car(LIST) |
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| 33 | # lt_cdr(LIST) |
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| 34 | # ------------ |
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| 35 | # Manipulate m4 lists. |
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| 36 | # These macros are necessary as long as will still need to support |
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| 37 | # Autoconf-2.59, which quotes differently. |
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| 38 | m4_define([lt_car], [[$1]]) |
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| 39 | m4_define([lt_cdr], |
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| 40 | [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], |
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| 41 | [$#], 1, [], |
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| 42 | [m4_dquote(m4_shift($@))])]) |
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| 43 | m4_define([lt_unquote], $1) |
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| 44 | |||
| 45 | |||
| 46 | # lt_append(MACRO-NAME, STRING, [SEPARATOR]) |
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| 47 | # ------------------------------------------ |
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| 48 | # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. |
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| 49 | # Note that neither SEPARATOR nor STRING are expanded; they are appended |
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| 50 | # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). |
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| 51 | # No SEPARATOR is output if MACRO-NAME was previously undefined (different |
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| 52 | # than defined and empty). |
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| 53 | # |
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| 54 | # This macro is needed until we can rely on Autoconf 2.62, since earlier |
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| 55 | # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. |
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| 56 | m4_define([lt_append], |
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| 57 | [m4_define([$1], |
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| 58 | m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) |
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| 59 | |||
| 60 | |||
| 61 | |||
| 62 | # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) |
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| 63 | # ---------------------------------------------------------- |
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| 64 | # Produce a SEP delimited list of all paired combinations of elements of |
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| 65 | # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list |
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| 66 | # has the form PREFIXmINFIXSUFFIXn. |
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| 67 | # Needed until we can rely on m4_combine added in Autoconf 2.62. |
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| 68 | m4_define([lt_combine], |
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| 69 | [m4_if(m4_eval([$# > 3]), [1], |
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| 70 | [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl |
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| 71 | [[m4_foreach([_Lt_prefix], [$2], |
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| 72 | [m4_foreach([_Lt_suffix], |
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| 73 | ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, |
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| 74 | [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) |
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| 75 | |||
| 76 | |||
| 77 | # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) |
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| 78 | # ----------------------------------------------------------------------- |
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| 79 | # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited |
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| 80 | # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. |
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| 81 | m4_define([lt_if_append_uniq], |
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| 82 | [m4_ifdef([$1], |
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| 83 | [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], |
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| 84 | [lt_append([$1], [$2], [$3])$4], |
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| 85 | [$5])], |
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| 86 | [lt_append([$1], [$2], [$3])$4])]) |
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| 87 | |||
| 88 | |||
| 89 | # lt_dict_add(DICT, KEY, VALUE) |
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| 90 | # ----------------------------- |
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| 91 | m4_define([lt_dict_add], |
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| 92 | [m4_define([$1($2)], [$3])]) |
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| 93 | |||
| 94 | |||
| 95 | # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) |
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| 96 | # -------------------------------------------- |
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| 97 | m4_define([lt_dict_add_subkey], |
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| 98 | [m4_define([$1($2:$3)], [$4])]) |
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| 99 | |||
| 100 | |||
| 101 | # lt_dict_fetch(DICT, KEY, [SUBKEY]) |
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| 102 | # ---------------------------------- |
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| 103 | m4_define([lt_dict_fetch], |
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| 104 | [m4_ifval([$3], |
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| 105 | m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), |
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| 106 | m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) |
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| 107 | |||
| 108 | |||
| 109 | # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) |
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| 110 | # ----------------------------------------------------------------- |
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| 111 | m4_define([lt_if_dict_fetch], |
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| 112 | [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], |
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| 113 | [$5], |
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| 114 | [$6])]) |
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| 115 | |||
| 116 | |||
| 117 | # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) |
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| 118 | # -------------------------------------------------------------- |
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| 119 | m4_define([lt_dict_filter], |
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| 120 | [m4_if([$5], [], [], |
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| 121 | [lt_join(m4_quote(m4_default([$4], [[, ]])), |
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| 122 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), |
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| 123 | [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl |
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| 124 | ]) |