ceph/src/boost/tools/build/src/tools/lzma.jam

   1 # Copyright (c) 2010 Vladimir Prus.
   2 # Copyright (c) 2013 Steven Watanabe
   3 #
   4 # Use, modification and distribution is subject to the Boost Software
   5 # License Version 1.0. (See accompanying file LICENSE_1_0.txt or
   6 # http://www.boost.org/LICENSE_1_0.txt)
   7
   8 # Supports the lzma library
   9 #
  10 # After 'using lzma', the following targets are available:
  11 #
  12 # /lzma//lzam -- The lzma library
  13
  14 import project ;
  15 import ac ;
  16 import errors ;
  17 import "class" : new ;
  18 import targets ;
  19 import path ;
  20 import modules ;
  21 import errors ;
  22 import indirect ;
  23 import property ;
  24 import property-set ;
  25
  26 header = lzma.h ;
  27 names = lzma ;
  28
  29 library-id = 0 ;
  30
  31 if --debug-configuration in [ modules.peek : ARGV ]
  32 {
  33     .debug =  true ;
  34 }
  35
  36 rule init (
  37     version ?
  38     # (currently ignored)
  39
  40     : options *
  41     # A list of the options to use
  42
  43     : requirements *
  44     # The requirements for the target
  45
  46     : is-default ?
  47     # Default configurations are only used when
  48     # not yet configured.  This option is
  49     # deprecated.  A configuration will be treated
  50     # as a default when none of <include>, <search>,
  51     # <name>, and <source> are present.
  52     )
  53 {
  54     local caller = [ project.current ] ;
  55
  56     if ! $(.initialized)
  57     {
  58         .initialized = true ;
  59
  60         project.initialize $(__name__) ;
  61         .project = [ project.current ] ;
  62         project lzma ;
  63     }
  64
  65     local library-path = [ property.select <search> : $(options) ] ;
  66     library-path = $(library-path:G=) ;
  67     local include-path = [ property.select <include> : $(options) ] ;
  68     include-path = $(include-path:G=) ;
  69     local library-name = [ property.select <name> : $(options) ] ;
  70     library-name = $(library-name:G=) ;
  71
  72     if ! $(options)
  73     {
  74         is-default = true ;
  75     }
  76
  77     condition = [ property-set.create $(requirements) ] ;
  78     condition = [ property-set.create [ $(condition).base ] ] ;
  79
  80     if $(.configured.$(condition))
  81     {
  82         if $(is-default)
  83         {
  84             if $(.debug)
  85             {
  86                 ECHO "notice: [lzma] lzma is already configured" ;
  87             }
  88         }
  89         else
  90         {
  91             errors.user-error "lzma is already configured" ;
  92         }
  93         return ;
  94     }
  95     else
  96     {
  97         if $(.debug)
  98         {
  99             ECHO "notice: [lzma] Using pre-installed library" ;
 100             if $(condition)
 101             {
 102                 ECHO "notice: [lzma] Condition" [ $(condition).raw ] ;
 103             }
 104         }
 105
 106         local mt = [ new ac-library lzma : $(.project) : $(condition) :
 107             $(include-path) : $(library-path) : $(library-name) ] ;
 108         $(mt).set-header $(header) ;
 109         $(mt).set-default-names $(names) ;
 110         targets.main-target-alternative $(mt) ;
 111     }
 112     .configured.$(condition) = true ;
 113 }