ceph/src/boost/tools/build/src/tools/zlib.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.txt or
   6 # https://www.bfgroup.xyz/b2/LICENSE.txt)
   7
   8 # Supports the zlib library
   9 #
  10 # After 'using zlib', the following targets are available:
  11 #
  12 # /zlib//zlib -- The zlib 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 os ;
  24 import property ;
  25 import property-set ;
  26
  27 header = zlib.h ;
  28 names = z zlib zll zdll ;
  29
  30 sources = adler32.c compress.c
  31      crc32.c deflate.c gzclose.c gzio.c gzlib.c gzread.c gzwrite.c
  32      infback.c inffast.c inflate.c inftrees.c trees.c uncompr.c zutil.c ;
  33
  34 library-id = 0 ;
  35
  36 if --debug-configuration in [ modules.peek : ARGV ]
  37 {
  38     .debug =  true ;
  39 }
  40
  41 # Initializes the zlib library.
  42 #
  43 # zlib can be configured either to use pre-existing binaries
  44 # or to build the library from source.
  45 #
  46 # Options for configuring a prebuilt zlib::
  47 #
  48 #   <search>
  49 #       The directory containing the zlib binaries.
  50 #   <name>
  51 #       Overrides the default library name.
  52 #   <include>
  53 #       The directory containing the zlib headers.
  54 #
  55 # If none of these options is specified, then the environmental
  56 # variables ZLIB_LIBRARY_PATH, ZLIB_NAME, and ZLIB_INCLUDE will
  57 # be used instead.
  58 #
  59 # Options for building zlib from source::
  60 #
  61 #   <source>
  62 #       The zlib source directory.  Defaults to the environmental variable
  63 #       ZLIB_SOURCE.
  64 #   <tag>
  65 #       A rule which computes the actual name of the compiled
  66 #       libraries based on the build properties.  Ignored
  67 #       when using precompiled binaries.
  68 #   <build-name>
  69 #       The base name to use for the compiled library.  Ignored
  70 #       when using precompiled binaries.
  71 #
  72 # Examples::
  73 #
  74 #   # Find zlib in the default system location
  75 #   using zlib ;
  76 #   # Build zlib from source
  77 #   using zlib : 1.2.7 : <source>/home/steven/zlib-1.2.7 ;
  78 #   # Find zlib in /usr/local
  79 #   using zlib : 1.2.7
  80 #     : <include>/usr/local/include <search>/usr/local/lib ;
  81 #   # Build zlib from source for msvc and find
  82 #   # prebuilt binaries for gcc.
  83 #   using zlib : 1.2.7 : <source>C:/Devel/src/zlib-1.2.7 : <toolset>msvc ;
  84 #   using zlib : 1.2.7 : : <toolset>gcc ;
  85 #
  86 rule init (
  87     version ?
  88     # The zlib version (currently ignored)
  89
  90     : options *
  91     # A list of the options to use
  92
  93     : requirements *
  94     # The requirements for the zlib target
  95
  96     : is-default ?
  97     # Default configurations are only used when zlib
  98     # has not yet been configured.  This option is
  99     # deprecated.  A configuration will be treated
 100     # as a default when none of <include>, <search>,
 101     # <name>, and <source> are present.
 102     )
 103 {
 104     local caller = [ project.current ] ;
 105
 106     if ! $(.initialized)
 107     {
 108         .initialized = true ;
 109
 110         project.initialize $(__name__) ;
 111         .project = [ project.current ] ;
 112         project zlib ;
 113     }
 114
 115     local library-path = [ feature.get-values <search> : $(options) ] ;
 116     local include-path = [ feature.get-values <include> : $(options) ] ;
 117     local source-path = [ feature.get-values <source> : $(options) ] ;
 118     local library-name = [ feature.get-values <name> : $(options) ] ;
 119     local tag = [ feature.get-values <tag> : $(options) ] ;
 120     local build-name = [ feature.get-values <build-name> : $(options) ] ;
 121
 122     if ! $(library-path) && ! $(include-path) && ! $(source-path) && ! $(library-name)
 123     {
 124         is-default = true ;
 125     }
 126
 127     condition = [ property-set.create $(requirements) ] ;
 128     condition = [ property-set.create [ $(condition).base ] ] ;
 129
 130     # Ignore environmental ZLIB_SOURCE if this initialization
 131     # requested to search for a specific pre-built library.
 132     if $(library-path) || $(include-path) || $(library-name)
 133     {
 134         if $(source-path) || $(tag) || $(build-name)
 135         {
 136             errors.user-error "incompatible options for zlib:"
 137                 [ property.select <search> <include> <name> : $(options) ] "and"
 138                 [ property.select <source> <tag> <build-name> : $(options) ] ;
 139         }
 140     }
 141     else
 142     {
 143         source-path ?= [ os.environ ZLIB_SOURCE ] ;
 144         if $(source-path)
 145         {
 146             source-path = [ path.root [ path.make $(source-path) ]
 147                                       [ path.pwd ] ] ;
 148         }
 149     }
 150
 151     if $(.configured.$(condition))
 152     {
 153         if $(is-default)
 154         {
 155             if $(.debug)
 156             {
 157                 ECHO "notice: [zlib] zlib is already configured" ;
 158             }
 159         }
 160         else
 161         {
 162             errors.user-error "zlib is already configured" ;
 163         }
 164         return ;
 165     }
 166     else if $(source-path)
 167     {
 168         build-name ?= z ;
 169         library-id = [ CALC $(library-id) + 1 ] ;
 170         tag = [ MATCH ^@?(.*)$ : $(tag) ] ;
 171         if $(tag)
 172         {
 173             tag = [ indirect.make $(tag) : [ $(caller).project-module ] ] ;
 174         }
 175         sources = [ path.glob $(source-path) : $(sources) ] ;
 176         if $(.debug)
 177         {
 178             ECHO "notice: [zlib] Building zlib from source as $(build-name)" ;
 179             if $(condition)
 180             {
 181                 ECHO "notice: [zlib] Condition" [ $(condition).raw ] ;
 182             }
 183             if $(sources)
 184             {
 185                 ECHO "notice: [zlib] found zlib source in $(source-path)" ;
 186             }
 187             else
 188             {
 189                 ECHO "warning: [zlib] could not find zlib source in $(source-path)" ;
 190             }
 191         }
 192         local target ;
 193         if $(sources)
 194         {
 195             target = [ targets.create-typed-target LIB : $(.project)
 196               : $(build-name).$(library-id)
 197               : $(sources)
 198               : $(requirements)
 199                 <tag>@$(tag)
 200                 <include>$(source-path)
 201                 <toolset>msvc:<define>_CRT_SECURE_NO_DEPRECATE
 202                 <toolset>msvc:<define>_SCL_SECURE_NO_DEPRECATE
 203                 <link>shared:<define>ZLIB_DLL
 204               :
 205               : <include>$(source-path) ] ;
 206         }
 207
 208         local mt = [ new ac-library zlib : $(.project) : $(condition) ] ;
 209         $(mt).set-header $(header) ;
 210         $(mt).set-default-names $(names) ;
 211         if $(target)
 212         {
 213             $(mt).set-target $(target) ;
 214         }
 215         targets.main-target-alternative $(mt) ;
 216     }
 217     else
 218     {
 219         if $(.debug)
 220         {
 221             ECHO "notice: [zlib] Using pre-installed library" ;
 222             if $(condition)
 223             {
 224                 ECHO "notice: [zlib] Condition" [ $(condition).raw ] ;
 225             }
 226         }
 227
 228         local mt = [ new ac-library zlib : $(.project) : $(condition) :
 229             $(include-path) : $(library-path) : $(library-name) ] ;
 230         $(mt).set-header $(header) ;
 231         $(mt).set-default-names $(names) ;
 232         targets.main-target-alternative $(mt) ;
 233     }
 234     .configured.$(condition) = true ;
 235 }