ltsugar.m4 revision 8bf5c682
18bf5c682Smrg# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- 28bf5c682Smrg# 38bf5c682Smrg# Copyright (C) 2004-2005, 2007-2008, 2011-2017 Free Software 48bf5c682Smrg# Foundation, Inc. 58bf5c682Smrg# Written by Gary V. Vaughan, 2004 68bf5c682Smrg# 78bf5c682Smrg# This file is free software; the Free Software Foundation gives 88bf5c682Smrg# unlimited permission to copy and/or distribute it, with or without 98bf5c682Smrg# modifications, as long as this notice is preserved. 108bf5c682Smrg 118bf5c682Smrg# serial 6 ltsugar.m4 128bf5c682Smrg 138bf5c682Smrg# This is to help aclocal find these macros, as it can't see m4_define. 148bf5c682SmrgAC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) 158bf5c682Smrg 168bf5c682Smrg 178bf5c682Smrg# lt_join(SEP, ARG1, [ARG2...]) 188bf5c682Smrg# ----------------------------- 198bf5c682Smrg# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their 208bf5c682Smrg# associated separator. 218bf5c682Smrg# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier 228bf5c682Smrg# versions in m4sugar had bugs. 238bf5c682Smrgm4_define([lt_join], 248bf5c682Smrg[m4_if([$#], [1], [], 258bf5c682Smrg [$#], [2], [[$2]], 268bf5c682Smrg [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) 278bf5c682Smrgm4_define([_lt_join], 288bf5c682Smrg[m4_if([$#$2], [2], [], 298bf5c682Smrg [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) 308bf5c682Smrg 318bf5c682Smrg 328bf5c682Smrg# lt_car(LIST) 338bf5c682Smrg# lt_cdr(LIST) 348bf5c682Smrg# ------------ 358bf5c682Smrg# Manipulate m4 lists. 368bf5c682Smrg# These macros are necessary as long as will still need to support 378bf5c682Smrg# Autoconf-2.59, which quotes differently. 388bf5c682Smrgm4_define([lt_car], [[$1]]) 398bf5c682Smrgm4_define([lt_cdr], 408bf5c682Smrg[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], 418bf5c682Smrg [$#], 1, [], 428bf5c682Smrg [m4_dquote(m4_shift($@))])]) 438bf5c682Smrgm4_define([lt_unquote], $1) 448bf5c682Smrg 458bf5c682Smrg 468bf5c682Smrg# lt_append(MACRO-NAME, STRING, [SEPARATOR]) 478bf5c682Smrg# ------------------------------------------ 488bf5c682Smrg# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. 498bf5c682Smrg# Note that neither SEPARATOR nor STRING are expanded; they are appended 508bf5c682Smrg# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). 518bf5c682Smrg# No SEPARATOR is output if MACRO-NAME was previously undefined (different 528bf5c682Smrg# than defined and empty). 538bf5c682Smrg# 548bf5c682Smrg# This macro is needed until we can rely on Autoconf 2.62, since earlier 558bf5c682Smrg# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. 568bf5c682Smrgm4_define([lt_append], 578bf5c682Smrg[m4_define([$1], 588bf5c682Smrg m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) 598bf5c682Smrg 608bf5c682Smrg 618bf5c682Smrg 628bf5c682Smrg# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) 638bf5c682Smrg# ---------------------------------------------------------- 648bf5c682Smrg# Produce a SEP delimited list of all paired combinations of elements of 658bf5c682Smrg# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list 668bf5c682Smrg# has the form PREFIXmINFIXSUFFIXn. 678bf5c682Smrg# Needed until we can rely on m4_combine added in Autoconf 2.62. 688bf5c682Smrgm4_define([lt_combine], 698bf5c682Smrg[m4_if(m4_eval([$# > 3]), [1], 708bf5c682Smrg [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl 718bf5c682Smrg[[m4_foreach([_Lt_prefix], [$2], 728bf5c682Smrg [m4_foreach([_Lt_suffix], 738bf5c682Smrg ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, 748bf5c682Smrg [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) 758bf5c682Smrg 768bf5c682Smrg 778bf5c682Smrg# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) 788bf5c682Smrg# ----------------------------------------------------------------------- 798bf5c682Smrg# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited 808bf5c682Smrg# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. 818bf5c682Smrgm4_define([lt_if_append_uniq], 828bf5c682Smrg[m4_ifdef([$1], 838bf5c682Smrg [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], 848bf5c682Smrg [lt_append([$1], [$2], [$3])$4], 858bf5c682Smrg [$5])], 868bf5c682Smrg [lt_append([$1], [$2], [$3])$4])]) 878bf5c682Smrg 888bf5c682Smrg 898bf5c682Smrg# lt_dict_add(DICT, KEY, VALUE) 908bf5c682Smrg# ----------------------------- 918bf5c682Smrgm4_define([lt_dict_add], 928bf5c682Smrg[m4_define([$1($2)], [$3])]) 938bf5c682Smrg 948bf5c682Smrg 958bf5c682Smrg# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) 968bf5c682Smrg# -------------------------------------------- 978bf5c682Smrgm4_define([lt_dict_add_subkey], 988bf5c682Smrg[m4_define([$1($2:$3)], [$4])]) 998bf5c682Smrg 1008bf5c682Smrg 1018bf5c682Smrg# lt_dict_fetch(DICT, KEY, [SUBKEY]) 1028bf5c682Smrg# ---------------------------------- 1038bf5c682Smrgm4_define([lt_dict_fetch], 1048bf5c682Smrg[m4_ifval([$3], 1058bf5c682Smrg m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), 1068bf5c682Smrg m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) 1078bf5c682Smrg 1088bf5c682Smrg 1098bf5c682Smrg# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) 1108bf5c682Smrg# ----------------------------------------------------------------- 1118bf5c682Smrgm4_define([lt_if_dict_fetch], 1128bf5c682Smrg[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], 1138bf5c682Smrg [$5], 1148bf5c682Smrg [$6])]) 1158bf5c682Smrg 1168bf5c682Smrg 1178bf5c682Smrg# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) 1188bf5c682Smrg# -------------------------------------------------------------- 1198bf5c682Smrgm4_define([lt_dict_filter], 1208bf5c682Smrg[m4_if([$5], [], [], 1218bf5c682Smrg [lt_join(m4_quote(m4_default([$4], [[, ]])), 1228bf5c682Smrg lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), 1238bf5c682Smrg [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl 1248bf5c682Smrg]) 125