Top Level Namespace

Defined Under Namespace

Modules: WSK Classes: Float, Rational

Constant Summary collapse

ROOT_DIR = 
File.expand_path("#{File.dirname(__FILE__)}/../..")

Instance Method Summary collapse

Instance Method Details

#build_external_libs(*iLstExternalLibs) ⇒ Object

Build external libraries. Set CFLAGS and LDFLAGS accordingly.

Parameters

  • iLstExternalLibs (list<String>): List of external libraries names (taken from the external directory)



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# File 'ext/WSK/CommonBuild.rb', line 16

def build_external_libs(*iLstExternalLibs)
  require 'rUtilAnts/Misc'
  RUtilAnts::Misc::install_misc_on_object
  iLstExternalLibs.each do |iLibName|
    lLibDir = File.expand_path("#{File.dirname(__FILE__)}/../../external/#{iLibName}")
    # Build the external library first
    # Don't do it from this environment, as it can modify global compilation variables
    change_dir(lLibDir) do
      lCmd = 'ruby -w build.rb'
      raise "Unable to build external library #{iLibName} (using #{lCmd}): #{$?.inspect}" if (!system(lCmd)) or (($? != nil) and ($? != 0))
    end
    $CFLAGS += " -I#{lLibDir}/include "
    $LDFLAGS += " -L#{lLibDir}/lib -l#{iLibName} "
  end
end

#build_local_gmp ⇒ Object

Build a local copy of GMP, downloaded directly from the Internet



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# File 'ext/WSK/CommonBuild.rb', line 43

def build_local_gmp
  lGMPBaseName = 'gmp-5.1.3'
  lGMPDir = "#{ROOT_DIR}/gmp"
  lGMPInstallDir = "#{ROOT_DIR}/gmp/#{lGMPBaseName}-install"

  puts "**** Have to download, compile and install the GMP library in #{lGMPInstallDir}."
  puts ''

  FileUtils::mkdir_p(lGMPDir)
  lOldDir = Dir.getwd
  Dir.chdir(lGMPDir)
  begin
    puts "** Download #{lGMPBaseName} from ftp://ftp.gmplib.org/pub/gmp/#{lGMPBaseName}.tar.bz2 ..."
    require 'net/ftp'
    ftp = Net::FTP.new('ftp.gmplib.org')
    ftp.
    ftp.getbinaryfile("pub/gmp/#{lGMPBaseName}.tar.bz2")
    ftp.close
    puts '** Extract archive contents ...'
    exec_cmd "tar xjf #{lGMPBaseName}.tar.bz2"
    Dir.chdir(lGMPBaseName)
    puts '** Configure GMP for compilation ...'
    exec_cmd "sh ./configure --prefix=#{lGMPInstallDir}"
    puts '** Compile GMP ...'
    exec_cmd 'make'
    puts "** Install locally GMP in #{lGMPInstallDir} ..."
    exec_cmd 'make install'
  ensure
    Dir.chdir(lOldDir)
  end

  puts "**** GMP installed correctly in #{lGMPInstallDir}."
  puts ''
end

#exec_cmd(iCmd) ⇒ Object

Execute a command, with nice logging and error handling around

Parameters:

  • iCmd (String): Command to execute

Raises:

  • (RuntimeError) 


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# File 'ext/WSK/CommonBuild.rb', line 36

def exec_cmd(iCmd)
  puts "[#{Dir.getwd}]> #{iCmd}"
  raise RuntimeError, "Unable to execute \"#{iCmd}\" on your system." if !system(iCmd)
  puts ''
end

#find_gmp ⇒ Object

Look for GMP in system and locally If it is found, compilation and link options will include it

Return:

  • Boolean: Has GMP been found?



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# File 'ext/WSK/CommonBuild.rb', line 83

def find_gmp
  rSuccess = have_library('gmp','mpz_get_str','gmp.h')

  if (!rSuccess)
    # Find locally installed GMP
    lGMPDir = File.expand_path("#{File.dirname(__FILE__)}/../../gmp")
    if (File.exist?(lGMPDir))
      lLastInstalledGMP = Dir.glob("#{lGMPDir}/*-install").sort[-1]
      if (lLastInstalledGMP != nil)
        puts "Found GMP installed in #{lLastInstalledGMP}."
        find_header('gmp.h',"#{lLastInstalledGMP}/include")
        find_library('gmp',nil,"#{lLastInstalledGMP}/lib")
        rSuccess = true
      else
        puts 'Could not find GMP library installed locally.'
      end
    end
  end

  return rSuccess
end