| 1 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
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| 2 | #
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| 3 | # Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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| 4 | # Written by Gary V. Vaughan.
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| 5 | #
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| 6 | # This file is free software; the Free Software Foundation gives
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| 7 | # unlimited permission to copy and/or distribute it, with or without
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| 8 | # modifications, as long as this notice is preserved.
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| 9 |
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| 10 | # serial 3 ltsugar.m4
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| 11 |
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| 12 | # This is to help aclocal find these macros, as it can't see m4_define.
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| 13 | AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
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| 14 |
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| 15 |
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| 16 | # lt_join(SEP, ARG1, [ARG2...])
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| 17 | # -----------------------------
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| 18 | # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
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| 19 | # associated separator.
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| 20 | m4_define([lt_join],
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| 21 | [m4_case([$#],
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| 22 | [0], [m4_fatal([$0: too few arguments: $#])],
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| 23 | [1], [],
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| 24 | [2], [[$2]],
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| 25 | [m4_ifval([$2],
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| 26 | [[$2][]m4_foreach(_lt_Arg, lt_car([m4_shiftn(2, $@)]),
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| 27 | [_$0([$1], _lt_Arg)])],
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| 28 | [$0([$1], m4_shiftn(2, $@))])])[]dnl
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| 29 | ])
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| 30 | m4_define([_lt_join],
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| 31 | [m4_ifval([$2],[$1][$2])[]dnl
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| 32 | ])
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| 33 |
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| 34 |
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| 35 | # lt_car(LIST)
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| 36 | # lt_cdr(LIST)
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| 37 | # ------------
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| 38 | # Manipulate m4 lists.
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| 39 | # These macros are necessary as long as will still need to support
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| 40 | # Autoconf-2.59 which quotes differently.
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| 41 | m4_define([lt_car], [[$1]])
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| 42 | m4_define([lt_cdr],
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| 43 | [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
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| 44 | [$#], 1, [],
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| 45 | [m4_dquote(m4_shift($@))])])
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| 46 | m4_define([lt_unquote], $1)
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| 47 |
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| 48 |
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| 49 | # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
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| 50 | # ----------------------------------------------------------
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| 51 | # Produce a SEP delimited list of all paired combinations of elements of
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| 52 | # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
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| 53 | # has the form PREFIXmINFIXSUFFIXn.
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| 54 | m4_define([lt_combine],
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| 55 | [m4_if([$2], [], [],
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| 56 | [m4_if([$4], [], [],
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| 57 | [lt_join(m4_quote(m4_default([$1], [[, ]])),
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| 58 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_prefix, [$2],
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| 59 | [m4_foreach(_Lt_suffix, lt_car([m4_shiftn(3, $@)]),
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| 60 | [_Lt_prefix[]$3[]_Lt_suffix ])])))))])])dnl
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| 61 | ])
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| 62 |
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| 63 |
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| 64 | # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
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| 65 | # -----------------------------------------------------------------------
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| 66 | # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
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| 67 | # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
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| 68 | m4_define([lt_if_append_uniq],
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| 69 | [m4_ifdef([$1],
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| 70 | [m4_bmatch($3[]m4_defn([$1])$3, $3[]m4_re_escape([$2])$3,
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| 71 | [$5],
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| 72 | [m4_append([$1], [$2], [$3])$4])],
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| 73 | [m4_append([$1], [$2], [$3])$4])])
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| 74 |
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| 75 |
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| 76 | # lt_dict_add(DICT, KEY, VALUE)
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| 77 | # -----------------------------
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| 78 | m4_define([lt_dict_add],
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| 79 | [m4_define([$1($2)], [$4])])
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| 80 |
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| 81 |
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| 82 | # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
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| 83 | # --------------------------------------------
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| 84 | m4_define([lt_dict_add_subkey],
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| 85 | [m4_define([$1($2:$3)], [$4])])
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| 86 |
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| 87 |
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| 88 | # lt_dict_fetch(DICT, KEY, [SUBKEY])
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| 89 | # ----------------------------------
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| 90 | m4_define([lt_dict_fetch],
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| 91 | [m4_ifval([$3],
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| 92 | m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
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| 93 | m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
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| 94 |
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| 95 |
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| 96 | # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
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| 97 | # -----------------------------------------------------------------
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| 98 | m4_define([lt_if_dict_fetch],
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| 99 | [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
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| 100 | [$5],
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| 101 | [$6])])
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| 102 |
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| 103 |
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| 104 | # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
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| 105 | # --------------------------------------------------------------
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| 106 | m4_define([lt_dict_filter],
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| 107 | [m4_if([$5], [], [],
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| 108 | [lt_join(m4_quote(m4_default([$4], [[, ]])),
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| 109 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
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| 110 | [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
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| 111 | ])
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