| # ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
| # |
| # Copyright (C) 2004-2005, 2007-2008, 2011-2019, 2021-2022 Free Software |
| # Foundation, Inc. |
| # Written by Gary V. Vaughan, 2004 |
| # |
| # This file is free software; the Free Software Foundation gives |
| # unlimited permission to copy and/or distribute it, with or without |
| # modifications, as long as this notice is preserved. |
| |
| # serial 6 ltsugar.m4 |
| |
| # This is to help aclocal find these macros, as it can't see m4_define. |
| AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) |
| |
| |
| # lt_join(SEP, ARG1, [ARG2...]) |
| # ----------------------------- |
| # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their |
| # associated separator. |
| # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier |
| # versions in m4sugar had bugs. |
| m4_define([lt_join], |
| [m4_if([$#], [1], [], |
| [$#], [2], [[$2]], |
| [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) |
| m4_define([_lt_join], |
| [m4_if([$#$2], [2], [], |
| [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) |
| |
| |
| # lt_car(LIST) |
| # lt_cdr(LIST) |
| # ------------ |
| # Manipulate m4 lists. |
| # These macros are necessary as long as will still need to support |
| # Autoconf-2.59, which quotes differently. |
| m4_define([lt_car], [[$1]]) |
| m4_define([lt_cdr], |
| [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], |
| [$#], 1, [], |
| [m4_dquote(m4_shift($@))])]) |
| m4_define([lt_unquote], $1) |
| |
| |
| # lt_append(MACRO-NAME, STRING, [SEPARATOR]) |
| # ------------------------------------------ |
| # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. |
| # Note that neither SEPARATOR nor STRING are expanded; they are appended |
| # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). |
| # No SEPARATOR is output if MACRO-NAME was previously undefined (different |
| # than defined and empty). |
| # |
| # This macro is needed until we can rely on Autoconf 2.62, since earlier |
| # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. |
| m4_define([lt_append], |
| [m4_define([$1], |
| m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) |
| |
| |
| |
| # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) |
| # ---------------------------------------------------------- |
| # Produce a SEP delimited list of all paired combinations of elements of |
| # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list |
| # has the form PREFIXmINFIXSUFFIXn. |
| # Needed until we can rely on m4_combine added in Autoconf 2.62. |
| m4_define([lt_combine], |
| [m4_if(m4_eval([$# > 3]), [1], |
| [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl |
| [[m4_foreach([_Lt_prefix], [$2], |
| [m4_foreach([_Lt_suffix], |
| ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, |
| [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) |
| |
| |
| # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) |
| # ----------------------------------------------------------------------- |
| # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited |
| # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. |
| m4_define([lt_if_append_uniq], |
| [m4_ifdef([$1], |
| [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], |
| [lt_append([$1], [$2], [$3])$4], |
| [$5])], |
| [lt_append([$1], [$2], [$3])$4])]) |
| |
| |
| # lt_dict_add(DICT, KEY, VALUE) |
| # ----------------------------- |
| m4_define([lt_dict_add], |
| [m4_define([$1($2)], [$3])]) |
| |
| |
| # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) |
| # -------------------------------------------- |
| m4_define([lt_dict_add_subkey], |
| [m4_define([$1($2:$3)], [$4])]) |
| |
| |
| # lt_dict_fetch(DICT, KEY, [SUBKEY]) |
| # ---------------------------------- |
| m4_define([lt_dict_fetch], |
| [m4_ifval([$3], |
| m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), |
| m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) |
| |
| |
| # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) |
| # ----------------------------------------------------------------- |
| m4_define([lt_if_dict_fetch], |
| [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], |
| [$5], |
| [$6])]) |
| |
| |
| # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) |
| # -------------------------------------------------------------- |
| m4_define([lt_dict_filter], |
| [m4_if([$5], [], [], |
| [lt_join(m4_quote(m4_default([$4], [[, ]])), |
| lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), |
| [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl |
| ]) |