- Fix build
- updated to 1.21
   see /usr/share/doc/packages/perl-Data-Alias/Changes
  version 1.21; 2017-12-08
  
    * update for context stack changes in Perl 5.23.8
  
    * update to accommodate PERL_OP_PARENT builds of Perl 5.21.11 or later
      (which is the default from Perl 5.25.1)
  
    * update for removal of LEX_KNOWNEXT in Perl 5.25.1
  
    * update test suite to not rely on . in @INC, which is no longer
      necessarily there from Perl 5.25.7
  
    * use cleaner wrap_op_checker() API to control op checking
- updated to 1.20
   see /usr/share/doc/packages/perl-Data-Alias/Changes
  version 1.20; 2015-10-21
  
    * bugfix: avoid some C undefined behaviour from unsequenced side effects
      that in practice bit when using a newer gcc (4.9 rather than 4.7)
      with the parser token stack change in Perl 5.21.9
  
    * add doc note advising users to prefer the core aliasing facility on
      Perl 5.22
  
  version 1.19; 2015-10-21
  
    * update for new stricture on op_last in Perl 5.21.2
  
    * update for the parser's PL_expect changes in Perl 5.21.4
  
    * update for op_private stricture in Perl 5.21.4
  
    * update for sub references directly in stash in Perl 5.21.4
  
    * update for IS_PADGV()'s limited visibility in Perl 5.21.4
  
    * update for increased specialness of OP_PUSHMARK in Perl 5.21.6
  
    * update for distinct PADNAMELIST type in Perl 5.21.7
  
    * update for multideref optimisation in Perl 5.21.7, by a disgusting
      hack that depends on a flaw in the optimisation (which may disappear
      in the future) and which disables the optimisation entirely
  
    * add MYMETA.json to .gitignore
- updated to 1.18
   * bugfix: store peep chain link reliably under threads
 
   * update tests for Perl 5.19.4's removal of the special treatment of
     aliased undef in arrays
 
   * in doc, switch to consistent use of British English spellings
 
   * doc typo fix
 
 version 1.17; 2013-08-04
 
   * bugfix: correct the dtrace-related macro squashing for Perls prior
     to 5.13.8, where the macros had the wrong number of parameters and
     prevented compilation
 
   * bugfix: use core's PL_no_localize_ref string constant as data string
     rather than format string
 
   * update to handle the new padrange op type in Perl 5.17.6
 
   * update to handle the new op allocation mechanism in Perl 5.17.2
 
   * clarify and expand documentation around list-like assignments
 
   * clarify documentation of deref() regarding lvalueness
 
   * remove the bulk of the documentation from the README file
version 1.16; 2011-11-17
  * bugfix: use supported API to put destructor calls on the save stack
    (the unsupported way used before was wrong for 64-bit systems on
    perl 5.13.1 and later)
  * document the behaviour of "alias return" in more detail
  * convert .cvsignore to .gitignore
- update to 1.14
  * port to Perl 5.15.0, where the op type aelemfast has been split into
    aelemfast and aelemfast_lex
  * test compatibility with Devel::CallParser
  * bugfix: never unhook peephole optimiser, because unhooking is liable
    to fail if anything else hooked it
  * bugfix: revise check for dorassign opcode to cope with FreeBSD's
    mutant Perl 5.8 that has it
  * test POD syntax and coverage
  * bugfix: prevent the lexer getting confused if the first thing inside
    an alias{} block is an open paren
  * bugfix: don't crash if an rv2cv op is built with PL_parser null
  * bugfix: handle variant structure of entersub op which lacks (ex-)list
    op as direct child
  * bugfix: squash bogus dtrace-related macro definitions that are picked
    up due to defining PERL_CORE
  * switch all pp functions to internal linkage
  * avoid some compiler warnings
  * include .cvsignore file in distribution
- updated to 1.12
   - Updated to work with Perl version 5.13.10, where GvGP() and
     GvCV() are not directly-assignable lvalues
   - Don't rely on details of core's pp_* functions to determine
     whether an opcode exists, because they can change unpredictably
     (and do change in Perl 5.13.9)
- switch to perl_requires macro
- update to 1.10
  - Updated to work with Perl version 5.13.7, where lex_end()
    has disappeared and mod() is now in the public API under the
    name op_lvalue()
- 1.09  
  - Modify source filter test to use Filter::Util::Call directly
    instead of the deprecated Switch, and to not fail if it is not
    available, thus allowing tests to pass on Perl versions 5.13.1
    and above where Switch is no longer in the core distribution
  - Updated to work with Perl version 5.13.6, where global variables
    are managed in a different way from before
- 1.08  
  - Updated to work with Perl versions 5.11.0 up to 5.13.0,
    including particularly the major change in when rv2cv ops get
    built in 5.11.2
- recreated by cpanspec 1.78
  o fix deps
- remove obsolete fix_for_perl_5_12 patch
- initial package (1.07)

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