exerbtk/ext/extconf.rb


#==============================================================================#
# $Id: extconf.rb,v 1.2 2004/01/22 21:14:11 yuya Exp $
#==============================================================================#

require 'fileutils'

#==============================================================================#

INFILE  = 'etklib.in'
OUTFILE = 'etklib.so'

#==============================================================================#

case RUBY_PLATFORM
when 'i386-mswin32'
  # copy the file.
  FileUtils.cp(INFILE, OUTFILE)
when 'i386-cygwin'
  # replace filename of ruby's dynamic-library in the import table.
  sec  = 0x00000210 # Raw address of [.rdata] section
  bin  = File.open(INFILE, 'rb') { |file| file.read }
  name = bin[sec + 0x00000000, 8]
  size = bin[sec + 0x00000010, 4].unpack('L')[0]
  addr = bin[sec + 0x00000014, 4].unpack('L')[0]

  raise('invalid section name') unless name == ".rdata\0\0"

  bin[addr, size] = bin[addr, size].sub(/msvcrt-ruby18.dll\0/, "cygruby18.dll\0\0\0\0\0")

  File.open(OUTFILE, 'wb') { |file| file.write(bin) }
else
  raise("[#{RUBY_PLATFORM}] which is your platform is not supported.")
end

#==============================================================================#

File.open('Makefile', 'w') { |file|
  file.puts('all: etklib.so')
  file.puts('etklib.so:')
}

#==============================================================================#
#==============================================================================#