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# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- |
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# |
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# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc. |
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# Written by Gary V. Vaughan. |
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# |
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# This file is free software; the Free Software Foundation gives |
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# unlimited permission to copy and/or distribute it, with or without |
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# modifications, as long as this notice is preserved. |
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|
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# serial 4 ltsugar.m4 |
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|
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# This is to help aclocal find these macros, as it can't see m4_define. |
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AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) |
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|
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|
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# lt_join(SEP, ARG1, [ARG2...]) |
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# ----------------------------- |
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# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their |
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# associated separator. |
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m4_define([lt_join], |
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[m4_case([$#], |
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[0], [m4_fatal([$0: too few arguments: $#])], |
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[1], [], |
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[2], [[$2]], |
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[m4_ifval([$2], |
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[[$2][]m4_foreach(_lt_Arg, lt_car([m4_shiftn(2, $@)]), |
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[_$0([$1], _lt_Arg)])], |
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[$0([$1], m4_shiftn(2, $@))])])[]dnl |
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]) |
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m4_define([_lt_join], |
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[m4_ifval([$2],[$1][$2])[]dnl |
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]) |
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|
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|
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# lt_car(LIST) |
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# lt_cdr(LIST) |
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# ------------ |
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# Manipulate m4 lists. |
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# These macros are necessary as long as will still need to support |
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# Autoconf-2.59 which quotes differently. |
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m4_define([lt_car], [[$1]]) |
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m4_define([lt_cdr], |
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[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], |
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[$#], 1, [], |
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[m4_dquote(m4_shift($@))])]) |
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m4_define([lt_unquote], $1) |
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|
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|
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# lt_append(MACRO-NAME, STRING, [SEPARATOR]) |
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# ------------------------------------------ |
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# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'. |
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# Note that neither SEPARATOR nor STRING are expanded. No SEPARATOR is |
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# output if MACRO-NAME was previously undefined (different than defined |
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# and empty). |
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# This macro is needed until we can rely on Autoconf 2.62, since earlier |
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# versions of m4 mistakenly expanded SEPARATOR. |
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m4_define([lt_append], |
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[m4_define([$1], |
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m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) |
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|
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|
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|
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# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) |
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# ---------------------------------------------------------- |
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# Produce a SEP delimited list of all paired combinations of elements of |
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# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list |
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# has the form PREFIXmINFIXSUFFIXn. |
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m4_define([lt_combine], |
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[m4_if([$2], [], [], |
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[m4_if([$4], [], [], |
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[lt_join(m4_quote(m4_default([$1], [[, ]])), |
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lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_prefix, [$2], |
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[m4_foreach(_Lt_suffix, lt_car([m4_shiftn(3, $@)]), |
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[_Lt_prefix[]$3[]_Lt_suffix ])])))))])])dnl |
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]) |
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|
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|
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# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) |
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# ----------------------------------------------------------------------- |
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# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited |
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# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. |
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m4_define([lt_if_append_uniq], |
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[m4_ifdef([$1], |
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[m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], |
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[lt_append([$1], [$2], [$3])$4], |
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[$5])], |
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[lt_append([$1], [$2], [$3])$4])]) |
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|
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|
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# lt_dict_add(DICT, KEY, VALUE) |
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# ----------------------------- |
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m4_define([lt_dict_add], |
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[m4_define([$1($2)], [$4])]) |
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|
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|
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# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) |
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# -------------------------------------------- |
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m4_define([lt_dict_add_subkey], |
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[m4_define([$1($2:$3)], [$4])]) |
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|
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|
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# lt_dict_fetch(DICT, KEY, [SUBKEY]) |
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# ---------------------------------- |
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m4_define([lt_dict_fetch], |
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[m4_ifval([$3], |
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m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), |
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m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) |
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|
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|
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# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) |
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# ----------------------------------------------------------------- |
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m4_define([lt_if_dict_fetch], |
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[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], |
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[$5], |
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[$6])]) |
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|
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|
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# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) |
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# -------------------------------------------------------------- |
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m4_define([lt_dict_filter], |
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[m4_if([$5], [], [], |
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[lt_join(m4_quote(m4_default([$4], [[, ]])), |
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lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), |
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[lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl |
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]) |
