ceph/src/boost/tools/build/src/tools/bzip2.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 bzip library
   9 #
  10 # After 'using bzip2', the following targets are available:
  11 #
  12 # /bzip2//bzip2 -- The bzip library
  13
  14 import project ;
  15 import ac ;
  16 import errors ;
  17 import feature ;
  18 import "class" : new ;
  19 import targets ;
  20 import path ;
  21 import modules ;
  22 import indirect ;
  23 import make ;
  24 import os ;
  25 import print ;
  26 import property ;
  27 import property-set ;
  28
  29 header = bzlib.h ;
  30 names = bz2 ;
  31
  32 sources = blocksort.c bzlib.c compress.c crctable.c
  33           decompress.c huffman.c randtable.c ;
  34
  35 library-id = 0 ;
  36
  37 if --debug-configuration in [ modules.peek : ARGV ]
  38 {
  39     .debug =  true ;
  40 }
  41
  42 # Initializes the bzip library.
  43 #
  44 # bzip can be configured either to use pre-existing binaries
  45 # or to build the library from source.
  46 #
  47 # Options for configuring a prebuilt bzip::
  48 #
  49 #   <search>
  50 #       The directory containing the bzip binaries.
  51 #   <name>
  52 #       Overrides the default library name.
  53 #   <include>
  54 #       The directory containing the bzip headers.
  55 #
  56 # If none of these options is specified, then the environmental
  57 # variables BZIP2_LIBRARY_PATH, BZIP2_NAME, and BZIP2_INCLUDE will
  58 # be used instead.
  59 #
  60 # Options for building bzip from source::
  61 #
  62 #   <source>
  63 #       The bzip source directory.  Defaults to the environmental variable
  64 #       BZIP2_SOURCE.
  65 #   <tag>
  66 #       A rule which computes the actual name of the compiled
  67 #       libraries based on the build properties.  Ignored
  68 #       when using precompiled binaries.
  69 #   <build-name>
  70 #       The base name to use for the compiled library.  Ignored
  71 #       when using precompiled binaries.
  72 #
  73 # Examples::
  74 #
  75 #   # Find bzip in the default system location
  76 #   using bzip2 ;
  77 #   # Build bzip from source
  78 #   using bzip2 : 1.0.6 : <source>/home/sergey/src/bzip2-1.0.6 ;
  79 #   # Find bzip in /usr/local
  80 #   using bzip2 : 1.0.6
  81 #     : <include>/usr/local/include <search>/usr/local/lib ;
  82 #   # Build bzip from source for msvc and find
  83 #   # prebuilt binaries for gcc.
  84 #   using bzip2 : 1.0.6 : <source>C:/Devel/src/bzip2-1.0.6 : <toolset>msvc ;
  85 #   using bzip2 : 1.0.6 : : <toolset>gcc ;
  86 #
  87 rule init (
  88     version ?
  89     # The bzip version (currently ignored)
  90
  91     : options *
  92     # A list of the options to use
  93
  94     : requirements *
  95     # The requirements for the bzip target
  96
  97     : is-default ?
  98     # Default configurations are only used when bzip
  99     # has not yet been configured.  This option is
 100     # deprecated.  A configuration will be treated
 101     # as a default when none of <include>, <search>,
 102     # <name>, and <source> are present.
 103     )
 104 {
 105     local caller = [ project.current ] ;
 106
 107     if ! $(.initialized)
 108     {
 109         .initialized = true ;
 110
 111         project.initialize $(__name__) ;
 112         .project = [ project.current ] ;
 113         project bzip2 ;
 114     }
 115
 116     local library-path = [ feature.get-values <search> : $(options) ] ;
 117     local include-path = [ feature.get-values <include> : $(options) ] ;
 118     local source-path = [ feature.get-values <source> : $(options) ] ;
 119     local library-name = [ feature.get-values <name> : $(options) ] ;
 120     local tag = [ feature.get-values <tag> : $(options) ] ;
 121     local build-name = [ feature.get-values <build-name> : $(options) ] ;
 122
 123     if ! $(library-path) && ! $(include-path) && ! $(source-path) && ! $(library-name)
 124     {
 125         is-default = true ;
 126     }
 127
 128     condition = [ property-set.create $(requirements) ] ;
 129     condition = [ property-set.create [ $(condition).base ] ] ;
 130
 131     local no-build-from-source ;
 132     # Ignore environmental BZIP2_SOURCE if this initialization
 133     # requested to search for a specific pre-built library.
 134     if $(library-path) || $(include-path) || $(library-name)
 135     {
 136         if $(source-path) || $(tag) || $(build-name)
 137         {
 138             errors.user-error "incompatible options for bzip2:"
 139                 [ property.select <search> <include> <name> : $(options) ] "and"
 140                 [ property.select <source> <tag> <build-name> : $(options) ] ;
 141         }
 142     }
 143     else
 144     {
 145         source-path ?= [ os.environ BZIP2_SOURCE ] ;
 146         if $(source-path)
 147         {
 148             source-path = [ path.root [ path.make $(source-path) ]
 149                                       [ path.pwd ] ] ;
 150         }
 151     }
 152
 153     if $(.configured.$(condition))
 154     {
 155         if $(is-default)
 156         {
 157             if $(.debug)
 158             {
 159                 ECHO "notice: [bzip2] bzip is already configured" ;
 160             }
 161         }
 162         else
 163         {
 164             errors.user-error "bzip is already configured" ;
 165         }
 166         return ;
 167     }
 168     else if $(source-path)
 169     {
 170         build-name ?= bz2 ;
 171         library-id = [ CALC $(library-id) + 1 ] ;
 172         tag = [ MATCH ^@?(.*)$ : $(tag) ] ;
 173         if $(tag)
 174         {
 175             tag = [ indirect.make $(tag) : [ $(caller).project-module ] ] ;
 176         }
 177         sources = [ path.glob $(source-path) : $(sources) ] ;
 178         def-file = [ path.glob $(source-path) : libbz2.def ] ;
 179         if $(.debug)
 180         {
 181             ECHO "notice: [bzip2] Building bzip from source as $(build-name)" ;
 182             if $(condition)
 183             {
 184                 ECHO "notice: [bzip2] Condition" [ $(condition).raw ] ;
 185             }
 186             if $(sources)
 187             {
 188                 ECHO "notice: [bzip2] found bzip source in $(source-path)" ;
 189             }
 190             else
 191             {
 192                 ECHO "warning: [bzip2] could not find bzip source in $(source-path)" ;
 193             }
 194         }
 195         local target ;
 196         if $(sources)
 197         {
 198             if ! $(.def-file-target)
 199             {
 200                 .def-file-target = [ targets.create-metatarget make-target-class
 201                   : $(.project) : libbz2.def : $(def-file)
 202                   : <action>@bzip2.make-bz2-def-file ]
 203                   ;
 204             }
 205             target = [ targets.create-typed-target LIB : $(.project)
 206               : $(build-name).$(library-id)
 207               : $(sources)
 208               : $(requirements)
 209                 <tag>@$(tag)
 210                 <include>$(source-path)
 211                 <toolset>msvc:<define>_CRT_SECURE_NO_DEPRECATE
 212                 <toolset>msvc:<define>_SCL_SECURE_NO_DEPRECATE
 213                 <link>shared:<def-file>libbz2.def
 214               :
 215               : <include>$(source-path) ] ;
 216         }
 217
 218         local mt = [ new ac-library bzip2 : $(.project) : $(condition) ] ;
 219         $(mt).set-header $(header) ;
 220         $(mt).set-default-names $(names) ;
 221         if $(target)
 222         {
 223             $(mt).set-target $(target) ;
 224         }
 225         targets.main-target-alternative $(mt) ;
 226     }
 227     else
 228     {
 229         if $(.debug)
 230         {
 231             ECHO "notice: [bzip2] Using pre-installed library" ;
 232             if $(condition)
 233             {
 234                 ECHO "notice: [bzip2] Condition" [ $(condition).raw ] ;
 235             }
 236         }
 237
 238         local mt = [ new ac-library bzip2 : $(.project) : $(condition) :
 239             $(include-path) : $(library-path) : $(library-name) ] ;
 240         $(mt).set-header $(header) ;
 241         $(mt).set-default-names $(names) ;
 242         targets.main-target-alternative $(mt) ;
 243     }
 244     .configured.$(condition) = true ;
 245 }
 246
 247 if [ os.name ] = NT
 248 {
 249     local rule read-file ( file )
 250     {
 251         return [ SPLIT_BY_CHARACTERS [ SHELL "type \"$(file:G=)\" 2>nul" ] : "\n" ] ;
 252     }
 253 }
 254 else if [ os.name ] = VMS
 255 {
 256     local rule read-file ( file )
 257     {
 258         return [ SPLIT_BY_CHARACTERS [ SHELL "PIPE TYPE $(file:W) 2>NL:" ] : "\n" ] ;
 259     }
 260 }
 261 else
 262 {
 263     local rule read-file ( file )
 264     {
 265         return [ SPLIT_BY_CHARACTERS [ SHELL "cat \"$(file:G=)\" 2>/dev/null" ]  : "\n" ] ;
 266     }
 267 }
 268
 269 rule make-bz2-def-file ( target : source : properties * )
 270 {
 271     print.output $(target) ;
 272     for local line in [ read-file $(source) ]
 273     {
 274         if ! [ MATCH "(LIBRARY[ \t]+LIBBZ2)" : $(line) ]
 275         {
 276             print.text $(line) : yes ;
 277         }
 278     }
 279 }