File indexing completed on 2024-12-22 04:04:07
0001 # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- 0002 # 0003 # Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software 0004 # Foundation, Inc. 0005 # Written by Gary V. Vaughan, 2004 0006 # 0007 # This file is free software; the Free Software Foundation gives 0008 # unlimited permission to copy and/or distribute it, with or without 0009 # modifications, as long as this notice is preserved. 0010 0011 # serial 6 ltsugar.m4 0012 0013 # This is to help aclocal find these macros, as it can't see m4_define. 0014 AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) 0015 0016 0017 # lt_join(SEP, ARG1, [ARG2...]) 0018 # ----------------------------- 0019 # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their 0020 # associated separator. 0021 # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier 0022 # versions in m4sugar had bugs. 0023 m4_define([lt_join], 0024 [m4_if([$#], [1], [], 0025 [$#], [2], [[$2]], 0026 [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) 0027 m4_define([_lt_join], 0028 [m4_if([$#$2], [2], [], 0029 [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) 0030 0031 0032 # lt_car(LIST) 0033 # lt_cdr(LIST) 0034 # ------------ 0035 # Manipulate m4 lists. 0036 # These macros are necessary as long as will still need to support 0037 # Autoconf-2.59, which quotes differently. 0038 m4_define([lt_car], [[$1]]) 0039 m4_define([lt_cdr], 0040 [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], 0041 [$#], 1, [], 0042 [m4_dquote(m4_shift($@))])]) 0043 m4_define([lt_unquote], $1) 0044 0045 0046 # lt_append(MACRO-NAME, STRING, [SEPARATOR]) 0047 # ------------------------------------------ 0048 # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. 0049 # Note that neither SEPARATOR nor STRING are expanded; they are appended 0050 # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). 0051 # No SEPARATOR is output if MACRO-NAME was previously undefined (different 0052 # than defined and empty). 0053 # 0054 # This macro is needed until we can rely on Autoconf 2.62, since earlier 0055 # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. 0056 m4_define([lt_append], 0057 [m4_define([$1], 0058 m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) 0059 0060 0061 0062 # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) 0063 # ---------------------------------------------------------- 0064 # Produce a SEP delimited list of all paired combinations of elements of 0065 # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list 0066 # has the form PREFIXmINFIXSUFFIXn. 0067 # Needed until we can rely on m4_combine added in Autoconf 2.62. 0068 m4_define([lt_combine], 0069 [m4_if(m4_eval([$# > 3]), [1], 0070 [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl 0071 [[m4_foreach([_Lt_prefix], [$2], 0072 [m4_foreach([_Lt_suffix], 0073 ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, 0074 [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) 0075 0076 0077 # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) 0078 # ----------------------------------------------------------------------- 0079 # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited 0080 # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. 0081 m4_define([lt_if_append_uniq], 0082 [m4_ifdef([$1], 0083 [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], 0084 [lt_append([$1], [$2], [$3])$4], 0085 [$5])], 0086 [lt_append([$1], [$2], [$3])$4])]) 0087 0088 0089 # lt_dict_add(DICT, KEY, VALUE) 0090 # ----------------------------- 0091 m4_define([lt_dict_add], 0092 [m4_define([$1($2)], [$3])]) 0093 0094 0095 # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) 0096 # -------------------------------------------- 0097 m4_define([lt_dict_add_subkey], 0098 [m4_define([$1($2:$3)], [$4])]) 0099 0100 0101 # lt_dict_fetch(DICT, KEY, [SUBKEY]) 0102 # ---------------------------------- 0103 m4_define([lt_dict_fetch], 0104 [m4_ifval([$3], 0105 m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), 0106 m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) 0107 0108 0109 # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) 0110 # ----------------------------------------------------------------- 0111 m4_define([lt_if_dict_fetch], 0112 [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], 0113 [$5], 0114 [$6])]) 0115 0116 0117 # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) 0118 # -------------------------------------------------------------- 0119 m4_define([lt_dict_filter], 0120 [m4_if([$5], [], [], 0121 [lt_join(m4_quote(m4_default([$4], [[, ]])), 0122 lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), 0123 [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl 0124 ])