ltsugar.m4 revision 243730
1243730Srwatson# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- 2243730Srwatson# 3243730Srwatson# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc. 4243730Srwatson# Written by Gary V. Vaughan, 2004 5243730Srwatson# 6243730Srwatson# This file is free software; the Free Software Foundation gives 7243730Srwatson# unlimited permission to copy and/or distribute it, with or without 8243730Srwatson# modifications, as long as this notice is preserved. 9243730Srwatson 10243730Srwatson# serial 6 ltsugar.m4 11243730Srwatson 12243730Srwatson# This is to help aclocal find these macros, as it can't see m4_define. 13243730SrwatsonAC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) 14243730Srwatson 15243730Srwatson 16243730Srwatson# lt_join(SEP, ARG1, [ARG2...]) 17243730Srwatson# ----------------------------- 18243730Srwatson# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their 19243730Srwatson# associated separator. 20243730Srwatson# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier 21243730Srwatson# versions in m4sugar had bugs. 22243730Srwatsonm4_define([lt_join], 23243730Srwatson[m4_if([$#], [1], [], 24243730Srwatson [$#], [2], [[$2]], 25243730Srwatson [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) 26243730Srwatsonm4_define([_lt_join], 27243730Srwatson[m4_if([$#$2], [2], [], 28243730Srwatson [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) 29243730Srwatson 30243730Srwatson 31243730Srwatson# lt_car(LIST) 32243730Srwatson# lt_cdr(LIST) 33243730Srwatson# ------------ 34243730Srwatson# Manipulate m4 lists. 35243730Srwatson# These macros are necessary as long as will still need to support 36243730Srwatson# Autoconf-2.59 which quotes differently. 37243730Srwatsonm4_define([lt_car], [[$1]]) 38243730Srwatsonm4_define([lt_cdr], 39243730Srwatson[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], 40243730Srwatson [$#], 1, [], 41243730Srwatson [m4_dquote(m4_shift($@))])]) 42243730Srwatsonm4_define([lt_unquote], $1) 43243730Srwatson 44243730Srwatson 45243730Srwatson# lt_append(MACRO-NAME, STRING, [SEPARATOR]) 46243730Srwatson# ------------------------------------------ 47243730Srwatson# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'. 48243730Srwatson# Note that neither SEPARATOR nor STRING are expanded; they are appended 49243730Srwatson# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). 50243730Srwatson# No SEPARATOR is output if MACRO-NAME was previously undefined (different 51243730Srwatson# than defined and empty). 52243730Srwatson# 53243730Srwatson# This macro is needed until we can rely on Autoconf 2.62, since earlier 54243730Srwatson# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. 55243730Srwatsonm4_define([lt_append], 56243730Srwatson[m4_define([$1], 57243730Srwatson m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) 58243730Srwatson 59243730Srwatson 60243730Srwatson 61243730Srwatson# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) 62243730Srwatson# ---------------------------------------------------------- 63243730Srwatson# Produce a SEP delimited list of all paired combinations of elements of 64243730Srwatson# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list 65243730Srwatson# has the form PREFIXmINFIXSUFFIXn. 66243730Srwatson# Needed until we can rely on m4_combine added in Autoconf 2.62. 67243730Srwatsonm4_define([lt_combine], 68243730Srwatson[m4_if(m4_eval([$# > 3]), [1], 69243730Srwatson [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl 70243730Srwatson[[m4_foreach([_Lt_prefix], [$2], 71243730Srwatson [m4_foreach([_Lt_suffix], 72243730Srwatson ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, 73243730Srwatson [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) 74243730Srwatson 75243730Srwatson 76243730Srwatson# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) 77243730Srwatson# ----------------------------------------------------------------------- 78243730Srwatson# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited 79243730Srwatson# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. 80243730Srwatsonm4_define([lt_if_append_uniq], 81243730Srwatson[m4_ifdef([$1], 82243730Srwatson [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], 83243730Srwatson [lt_append([$1], [$2], [$3])$4], 84243730Srwatson [$5])], 85243730Srwatson [lt_append([$1], [$2], [$3])$4])]) 86243730Srwatson 87243730Srwatson 88243730Srwatson# lt_dict_add(DICT, KEY, VALUE) 89243730Srwatson# ----------------------------- 90243730Srwatsonm4_define([lt_dict_add], 91243730Srwatson[m4_define([$1($2)], [$3])]) 92243730Srwatson 93243730Srwatson 94243730Srwatson# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) 95243730Srwatson# -------------------------------------------- 96243730Srwatsonm4_define([lt_dict_add_subkey], 97243730Srwatson[m4_define([$1($2:$3)], [$4])]) 98243730Srwatson 99243730Srwatson 100243730Srwatson# lt_dict_fetch(DICT, KEY, [SUBKEY]) 101243730Srwatson# ---------------------------------- 102243730Srwatsonm4_define([lt_dict_fetch], 103243730Srwatson[m4_ifval([$3], 104243730Srwatson m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), 105243730Srwatson m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) 106243730Srwatson 107243730Srwatson 108243730Srwatson# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) 109243730Srwatson# ----------------------------------------------------------------- 110243730Srwatsonm4_define([lt_if_dict_fetch], 111243730Srwatson[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], 112243730Srwatson [$5], 113243730Srwatson [$6])]) 114243730Srwatson 115243730Srwatson 116243730Srwatson# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) 117243730Srwatson# -------------------------------------------------------------- 118243730Srwatsonm4_define([lt_dict_filter], 119243730Srwatson[m4_if([$5], [], [], 120243730Srwatson [lt_join(m4_quote(m4_default([$4], [[, ]])), 121243730Srwatson lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), 122243730Srwatson [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl 123243730Srwatson]) 124