Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 1 | # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
| 2 | # |
Felicia Lim | d03c373 | 2016-07-25 20:28:37 +0200 | [diff] [blame] | 3 | # Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software |
| 4 | # Foundation, Inc. |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 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 |
Felicia Lim | d03c373 | 2016-07-25 20:28:37 +0200 | [diff] [blame] | 37 | # Autoconf-2.59, which quotes differently. |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 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 | # ------------------------------------------ |
Felicia Lim | d03c373 | 2016-07-25 20:28:37 +0200 | [diff] [blame] | 48 | # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. |
Vignesh Venkatasubramanian | 2bd8b54 | 2014-02-20 10:50:35 -0800 | [diff] [blame] | 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 | ]) |