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_1_0.txt or
   6 # http://www.boost.org/LICENSE_1_0.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 "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 = zlib.h ;
  27 names = z zlib zll zdll ;
  28
  29 sources = adler32.c compress.c
  30      crc32.c deflate.c gzclose.c gzio.c gzlib.c gzread.c gzwrite.c
  31      infback.c inffast.c inflate.c inftrees.c trees.c uncompr.c zutil.c ;
  32
  33 library-id = 0 ;
  34
  35 if --debug-configuration in [ modules.peek : ARGV ]
  36 {
  37     .debug =  true ;
  38 }
  39
  40 # Initializes the zlib library.
  41 #
  42 # zlib can be configured either to use pre-existing binaries
  43 # or to build the library from source.
  44 #
  45 # Options for configuring a prebuilt zlib::
  46 #
  47 #   <search>
  48 #       The directory containing the zlib binaries.
  49 #   <name>
  50 #       Overrides the default library name.
  51 #   <include>
  52 #       The directory containing the zlib headers.
  53 #
  54 # If none of these options is specified, then the environmental
  55 # variables ZLIB_LIBRARY_PATH, ZLIB_NAME, and ZLIB_INCLUDE will
  56 # be used instead.
  57 #
  58 # Options for building zlib from source::
  59 #
  60 #   <source>
  61 #       The zlib source directory.  Defaults to the environmental variable
  62 #       ZLIB_SOURCE.
  63 #   <tag>
  64 #       A rule which computes the actual name of the compiled
  65 #       libraries based on the build properties.  Ignored
  66 #       when using precompiled binaries.
  67 #   <build-name>
  68 #       The base name to use for the compiled library.  Ignored
  69 #       when using precompiled binaries.
  70 #
  71 # Examples::
  72 #
  73 #   # Find zlib in the default system location
  74 #   using zlib ;
  75 #   # Build zlib from source
  76 #   using zlib : 1.2.7 : <source>/home/steven/zlib-1.2.7 ;
  77 #   # Find zlib in /usr/local
  78 #   using zlib : 1.2.7
  79 #     : <include>/usr/local/include <search>/usr/local/lib ;
  80 #   # Build zlib from source for msvc and find
  81 #   # prebuilt binaries for gcc.
  82 #   using zlib : 1.2.7 : <source>C:/Devel/src/zlib-1.2.7 : <toolset>msvc ;
  83 #   using zlib : 1.2.7 : : <toolset>gcc ;
  84 #
  85 rule init (
  86     version ?
  87     # The zlib version (currently ignored)
  88
  89     : options *
  90     # A list of the options to use
  91
  92     : requirements *
  93     # The requirements for the zlib target
  94
  95     : is-default ?
  96     # Default configurations are only used when zlib
  97     # has not yet been configured.  This option is
  98     # deprecated.  A configuration will be treated
  99     # as a default when none of <include>, <search>,
 100     # <name>, and <source> are present.
 101     )
 102 {
 103     local caller = [ project.current ] ;
 104
 105     if ! $(.initialized)
 106     {
 107         .initialized = true ;
 108
 109         project.initialize $(__name__) ;
 110         .project = [ project.current ] ;
 111         project zlib ;
 112     }
 113
 114     local library-path = [ property.select <search> : $(options) ] ;
 115     library-path = $(library-path:G=) ;
 116     local include-path = [ property.select <include> : $(options) ] ;
 117     include-path = $(include-path:G=) ;
 118     local source-path = [ property.select <source> : $(options) ] ;
 119     source-path = $(source-path:G=) ;
 120     local library-name = [ property.select <name> : $(options) ] ;
 121     library-name = $(library-name:G=) ;
 122     local tag = [ property.select <tag> : $(options) ] ;
 123     tag = $(tag:G=) ;
 124     local build-name = [ property.select <build-name> : $(options) ] ;
 125     build-name = $(build-name:G=) ;
 126
 127     if ! $(library-path) && ! $(include-path) && ! $(source-path) && ! $(library-name)
 128     {
 129         is-default = true ;
 130     }
 131
 132     condition = [ property-set.create $(requirements) ] ;
 133     condition = [ property-set.create [ $(condition).base ] ] ;
 134
 135     local no-build-from-source ;
 136     # Ignore environmental ZLIB_SOURCE if this initialization
 137     # requested to search for a specific pre-built library.
 138     if $(library-path) || $(include-path) || $(library-name)
 139     {
 140         if $(source-path) || $(tag) || $(build-name)
 141         {
 142             errors.user-error "incompatible options for zlib:"
 143                 [ property.select <search> <include> <name> : $(options) ] "and"
 144                 [ property.select <source> <tag> <build-name> : $(options) ] ;
 145         }
 146     }
 147     else
 148     {
 149         source-path ?= [ modules.peek : ZLIB_SOURCE ] ;
 150     }
 151
 152     if $(.configured.$(condition))
 153     {
 154         if $(is-default)
 155         {
 156             if $(.debug)
 157             {
 158                 ECHO "notice: [zlib] zlib is already configured" ;
 159             }
 160         }
 161         else
 162         {
 163             errors.user-error "zlib is already configured" ;
 164         }
 165         return ;
 166     }
 167     else if $(source-path)
 168     {
 169         build-name ?= z ;
 170         library-id = [ CALC $(library-id) + 1 ] ;
 171         tag = [ MATCH ^@?(.*)$ : $(tag) ] ;
 172         if $(tag) && ! [ MATCH ^([^%]*)%([^%]+)$ : $(tag) ]
 173         {
 174             tag = [ indirect.make $(tag) : [ $(caller).project-module ] ] ;
 175         }
 176         sources = [ path.glob $(source-path) : $(sources) ] ;
 177         if $(.debug)
 178         {
 179             ECHO "notice: [zlib] Building zlib from source as $(build-name)" ;
 180             if $(condition)
 181             {
 182                 ECHO "notice: [zlib] Condition" [ $(condition).raw ] ;
 183             }
 184             if $(sources)
 185             {
 186                 ECHO "notice: [zlib] found zlib source in $(source-path)" ;
 187             }
 188             else
 189             {
 190                 ECHO "warning: [zlib] could not find zlib source in $(source-path)" ;
 191             }
 192         }
 193         local target ;
 194         if $(sources)
 195         {
 196             target = [ targets.create-typed-target LIB : $(.project)
 197               : $(build-name).$(library-id)
 198               : $(sources)
 199               : $(requirements)
 200                 <tag>@$(tag)
 201                 <include>$(source-path)
 202                 <toolset>msvc:<define>_CRT_SECURE_NO_DEPRECATE
 203                 <toolset>msvc:<define>_SCL_SECURE_NO_DEPRECATE
 204                 <link>shared:<define>ZLIB_DLL
 205               :
 206               : <include>$(source-path) ] ;
 207         }
 208
 209         local mt = [ new ac-library zlib : $(.project) : $(condition) ] ;
 210         $(mt).set-header $(header) ;
 211         $(mt).set-default-names $(names) ;
 212         if $(target)
 213         {
 214             $(mt).set-target $(target) ;
 215         }
 216         targets.main-target-alternative $(mt) ;
 217     }
 218     else
 219     {
 220         if $(.debug)
 221         {
 222             ECHO "notice: [zlib] Using pre-installed library" ;
 223             if $(condition)
 224             {
 225                 ECHO "notice: [zlib] Condition" [ $(condition).raw ] ;
 226             }
 227         }
 228
 229         local mt = [ new ac-library zlib : $(.project) : $(condition) :
 230             $(include-path) : $(library-path) : $(library-name) ] ;
 231         $(mt).set-header $(header) ;
 232         $(mt).set-default-names $(names) ;
 233         targets.main-target-alternative $(mt) ;
 234     }
 235     .configured.$(condition) = true ;
 236 }