cannam@154: # ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
cannam@154: #
cannam@154: # Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
cannam@154: # Foundation, Inc.
cannam@154: # Written by Gary V. Vaughan, 2004
cannam@154: #
cannam@154: # This file is free software; the Free Software Foundation gives
cannam@154: # unlimited permission to copy and/or distribute it, with or without
cannam@154: # modifications, as long as this notice is preserved.
cannam@154: 
cannam@154: # serial 6 ltsugar.m4
cannam@154: 
cannam@154: # This is to help aclocal find these macros, as it can't see m4_define.
cannam@154: AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
cannam@154: 
cannam@154: 
cannam@154: # lt_join(SEP, ARG1, [ARG2...])
cannam@154: # -----------------------------
cannam@154: # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
cannam@154: # associated separator.
cannam@154: # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
cannam@154: # versions in m4sugar had bugs.
cannam@154: m4_define([lt_join],
cannam@154: [m4_if([$#], [1], [],
cannam@154:        [$#], [2], [[$2]],
cannam@154:        [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
cannam@154: m4_define([_lt_join],
cannam@154: [m4_if([$#$2], [2], [],
cannam@154:        [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
cannam@154: 
cannam@154: 
cannam@154: # lt_car(LIST)
cannam@154: # lt_cdr(LIST)
cannam@154: # ------------
cannam@154: # Manipulate m4 lists.
cannam@154: # These macros are necessary as long as will still need to support
cannam@154: # Autoconf-2.59, which quotes differently.
cannam@154: m4_define([lt_car], [[$1]])
cannam@154: m4_define([lt_cdr],
cannam@154: [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
cannam@154:        [$#], 1, [],
cannam@154:        [m4_dquote(m4_shift($@))])])
cannam@154: m4_define([lt_unquote], $1)
cannam@154: 
cannam@154: 
cannam@154: # lt_append(MACRO-NAME, STRING, [SEPARATOR])
cannam@154: # ------------------------------------------
cannam@154: # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
cannam@154: # Note that neither SEPARATOR nor STRING are expanded; they are appended
cannam@154: # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
cannam@154: # No SEPARATOR is output if MACRO-NAME was previously undefined (different
cannam@154: # than defined and empty).
cannam@154: #
cannam@154: # This macro is needed until we can rely on Autoconf 2.62, since earlier
cannam@154: # versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
cannam@154: m4_define([lt_append],
cannam@154: [m4_define([$1],
cannam@154: 	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
cannam@154: 
cannam@154: 
cannam@154: 
cannam@154: # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
cannam@154: # ----------------------------------------------------------
cannam@154: # Produce a SEP delimited list of all paired combinations of elements of
cannam@154: # PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
cannam@154: # has the form PREFIXmINFIXSUFFIXn.
cannam@154: # Needed until we can rely on m4_combine added in Autoconf 2.62.
cannam@154: m4_define([lt_combine],
cannam@154: [m4_if(m4_eval([$# > 3]), [1],
cannam@154:        [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
cannam@154: [[m4_foreach([_Lt_prefix], [$2],
cannam@154: 	     [m4_foreach([_Lt_suffix],
cannam@154: 		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
cannam@154: 	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
cannam@154: 
cannam@154: 
cannam@154: # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
cannam@154: # -----------------------------------------------------------------------
cannam@154: # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
cannam@154: # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
cannam@154: m4_define([lt_if_append_uniq],
cannam@154: [m4_ifdef([$1],
cannam@154: 	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
cannam@154: 		 [lt_append([$1], [$2], [$3])$4],
cannam@154: 		 [$5])],
cannam@154: 	  [lt_append([$1], [$2], [$3])$4])])
cannam@154: 
cannam@154: 
cannam@154: # lt_dict_add(DICT, KEY, VALUE)
cannam@154: # -----------------------------
cannam@154: m4_define([lt_dict_add],
cannam@154: [m4_define([$1($2)], [$3])])
cannam@154: 
cannam@154: 
cannam@154: # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
cannam@154: # --------------------------------------------
cannam@154: m4_define([lt_dict_add_subkey],
cannam@154: [m4_define([$1($2:$3)], [$4])])
cannam@154: 
cannam@154: 
cannam@154: # lt_dict_fetch(DICT, KEY, [SUBKEY])
cannam@154: # ----------------------------------
cannam@154: m4_define([lt_dict_fetch],
cannam@154: [m4_ifval([$3],
cannam@154: 	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
cannam@154:     m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
cannam@154: 
cannam@154: 
cannam@154: # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
cannam@154: # -----------------------------------------------------------------
cannam@154: m4_define([lt_if_dict_fetch],
cannam@154: [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
cannam@154: 	[$5],
cannam@154:     [$6])])
cannam@154: 
cannam@154: 
cannam@154: # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
cannam@154: # --------------------------------------------------------------
cannam@154: m4_define([lt_dict_filter],
cannam@154: [m4_if([$5], [], [],
cannam@154:   [lt_join(m4_quote(m4_default([$4], [[, ]])),
cannam@154:            lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
cannam@154: 		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
cannam@154: ])