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Version 1.2p1

    1: # ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
    2: #
    3: # Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
    4: # Foundation, Inc.
    5: # Written by Gary V. Vaughan, 2004
    6: #
    7: # This file is free software; the Free Software Foundation gives
    8: # unlimited permission to copy and/or distribute it, with or without
    9: # modifications, as long as this notice is preserved.
   10: 
   11: # serial 6 ltsugar.m4
   12: 
   13: # This is to help aclocal find these macros, as it can't see m4_define.
   14: AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
   15: 
   16: 
   17: # lt_join(SEP, ARG1, [ARG2...])
   18: # -----------------------------
   19: # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
   20: # associated separator.
   21: # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
   22: # versions in m4sugar had bugs.
   23: m4_define([lt_join],
   24: [m4_if([$#], [1], [],
   25:        [$#], [2], [[$2]],
   26:        [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
   27: m4_define([_lt_join],
   28: [m4_if([$#$2], [2], [],
   29:        [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
   30: 
   31: 
   32: # lt_car(LIST)
   33: # lt_cdr(LIST)
   34: # ------------
   35: # Manipulate m4 lists.
   36: # These macros are necessary as long as will still need to support
   37: # Autoconf-2.59, which quotes differently.
   38: m4_define([lt_car], [[$1]])
   39: m4_define([lt_cdr],
   40: [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
   41:        [$#], 1, [],
   42:        [m4_dquote(m4_shift($@))])])
   43: m4_define([lt_unquote], $1)
   44: 
   45: 
   46: # lt_append(MACRO-NAME, STRING, [SEPARATOR])
   47: # ------------------------------------------
   48: # Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
   49: # Note that neither SEPARATOR nor STRING are expanded; they are appended
   50: # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
   51: # No SEPARATOR is output if MACRO-NAME was previously undefined (different
   52: # than defined and empty).
   53: #
   54: # This macro is needed until we can rely on Autoconf 2.62, since earlier
   55: # versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
   56: m4_define([lt_append],
   57: [m4_define([$1],
   58: 	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
   59: 
   60: 
   61: 
   62: # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
   63: # ----------------------------------------------------------
   64: # Produce a SEP delimited list of all paired combinations of elements of
   65: # PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
   66: # has the form PREFIXmINFIXSUFFIXn.
   67: # Needed until we can rely on m4_combine added in Autoconf 2.62.
   68: m4_define([lt_combine],
   69: [m4_if(m4_eval([$# > 3]), [1],
   70:        [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
   71: [[m4_foreach([_Lt_prefix], [$2],
   72: 	     [m4_foreach([_Lt_suffix],
   73: 		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
   74: 	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
   75: 
   76: 
   77: # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
   78: # -----------------------------------------------------------------------
   79: # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
   80: # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
   81: m4_define([lt_if_append_uniq],
   82: [m4_ifdef([$1],
   83: 	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
   84: 		 [lt_append([$1], [$2], [$3])$4],
   85: 		 [$5])],
   86: 	  [lt_append([$1], [$2], [$3])$4])])
   87: 
   88: 
   89: # lt_dict_add(DICT, KEY, VALUE)
   90: # -----------------------------
   91: m4_define([lt_dict_add],
   92: [m4_define([$1($2)], [$3])])
   93: 
   94: 
   95: # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
   96: # --------------------------------------------
   97: m4_define([lt_dict_add_subkey],
   98: [m4_define([$1($2:$3)], [$4])])
   99: 
  100: 
  101: # lt_dict_fetch(DICT, KEY, [SUBKEY])
  102: # ----------------------------------
  103: m4_define([lt_dict_fetch],
  104: [m4_ifval([$3],
  105: 	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
  106:     m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
  107: 
  108: 
  109: # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
  110: # -----------------------------------------------------------------
  111: m4_define([lt_if_dict_fetch],
  112: [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
  113: 	[$5],
  114:     [$6])])
  115: 
  116: 
  117: # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
  118: # --------------------------------------------------------------
  119: m4_define([lt_dict_filter],
  120: [m4_if([$5], [], [],
  121:   [lt_join(m4_quote(m4_default([$4], [[, ]])),
  122:            lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
  123: 		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
  124: ])