| commit | author | age | ||
| 0a10d5 | 1 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
| JS | 2 | # |
| 3 | # Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc. | |
| 4 | # Written by Gary V. Vaughan, 2004 | |
| 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 6 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 | # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier | |
| 21 | # versions in m4sugar had bugs. | |
| 22 | m4_define([lt_join], | |
| 23 | [m4_if([$#], [1], [], | |
| 24 | [$#], [2], [[$2]], | |
| 25 | [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) | |
| 26 | m4_define([_lt_join], | |
| 27 | [m4_if([$#$2], [2], [], | |
| 28 | [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) | |
| 29 | ||
| 30 | ||
| 31 | # lt_car(LIST) | |
| 32 | # lt_cdr(LIST) | |
| 33 | # ------------ | |
| 34 | # Manipulate m4 lists. | |
| 35 | # These macros are necessary as long as will still need to support | |
| 36 | # Autoconf-2.59 which quotes differently. | |
| 37 | m4_define([lt_car], [[$1]]) | |
| 38 | m4_define([lt_cdr], | |
| 39 | [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], | |
| 40 | [$#], 1, [], | |
| 41 | [m4_dquote(m4_shift($@))])]) | |
| 42 | m4_define([lt_unquote], $1) | |
| 43 | ||
| 44 | ||
| 45 | # lt_append(MACRO-NAME, STRING, [SEPARATOR]) | |
| 46 | # ------------------------------------------ | |
| 47 | # Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'. | |
| 48 | # Note that neither SEPARATOR nor STRING are expanded; they are appended | |
| 49 | # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). | |
| 50 | # No SEPARATOR is output if MACRO-NAME was previously undefined (different | |
| 51 | # than defined and empty). | |
| 52 | # | |
| 53 | # This macro is needed until we can rely on Autoconf 2.62, since earlier | |
| 54 | # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. | |
| 55 | m4_define([lt_append], | |
| 56 | [m4_define([$1], | |
| 57 | m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) | |
| 58 | ||
| 59 | ||
| 60 | ||
| 61 | # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) | |
| 62 | # ---------------------------------------------------------- | |
| 63 | # Produce a SEP delimited list of all paired combinations of elements of | |
| 64 | # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list | |
| 65 | # has the form PREFIXmINFIXSUFFIXn. | |
| 66 | # Needed until we can rely on m4_combine added in Autoconf 2.62. | |
| 67 | m4_define([lt_combine], | |
| 68 | [m4_if(m4_eval([$# > 3]), [1], | |
| 69 | [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl | |
| 70 | [[m4_foreach([_Lt_prefix], [$2], | |
| 71 | [m4_foreach([_Lt_suffix], | |
| 72 | ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, | |
| 73 | [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) | |
| 74 | ||
| 75 | ||
| 76 | # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) | |
| 77 | # ----------------------------------------------------------------------- | |
| 78 | # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited | |
| 79 | # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. | |
| 80 | m4_define([lt_if_append_uniq], | |
| 81 | [m4_ifdef([$1], | |
| 82 | [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], | |
| 83 | [lt_append([$1], [$2], [$3])$4], | |
| 84 | [$5])], | |
| 85 | [lt_append([$1], [$2], [$3])$4])]) | |
| 86 | ||
| 87 | ||
| 88 | # lt_dict_add(DICT, KEY, VALUE) | |
| 89 | # ----------------------------- | |
| 90 | m4_define([lt_dict_add], | |
| 91 | [m4_define([$1($2)], [$3])]) | |
| 92 | ||
| 93 | ||
| 94 | # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) | |
| 95 | # -------------------------------------------- | |
| 96 | m4_define([lt_dict_add_subkey], | |
| 97 | [m4_define([$1($2:$3)], [$4])]) | |
| 98 | ||
| 99 | ||
| 100 | # lt_dict_fetch(DICT, KEY, [SUBKEY]) | |
| 101 | # ---------------------------------- | |
| 102 | m4_define([lt_dict_fetch], | |
| 103 | [m4_ifval([$3], | |
| 104 | m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), | |
| 105 | m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) | |
| 106 | ||
| 107 | ||
| 108 | # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) | |
| 109 | # ----------------------------------------------------------------- | |
| 110 | m4_define([lt_if_dict_fetch], | |
| 111 | [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], | |
| 112 | [$5], | |
| 113 | [$6])]) | |
| 114 | ||
| 115 | ||
| 116 | # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) | |
| 117 | # -------------------------------------------------------------- | |
| 118 | m4_define([lt_dict_filter], | |
| 119 | [m4_if([$5], [], [], | |
| 120 | [lt_join(m4_quote(m4_default([$4], [[, ]])), | |
| 121 | lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), | |
| 122 | [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl | |
| 123 | ]) | |
