text: """SCons.Tool.gcc
  
  Tool-specific initialization for gcc.
  
  There normally shouldn't be any need to import this module directly.
  It will usually be imported through the generic SCons.Tool.Tool()
  selection method.
  
  """
  
  #
  # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 The SCons Foundation
  #
  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  #
  
  __revision__ = "src/engine/SCons/Tool/gcc.py issue-2856:2676:d23b7a2f45e8 2012/08/05 15:38:28 garyo"
  
  import cc
  import os
  import re
  import subprocess
  
  import SCons.Util
  
  compilers = ['gcc', 'cc']
  
  def generate(env):
      """Add Builders and construction variables for gcc to an Environment."""
      cc.generate(env)
  
      env['CC'] = env.Detect(compilers) or 'gcc'
      if env['PLATFORM'] in ['cygwin', 'win32']:
          env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
      else:
          env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS -fPIC')
      # determine compiler version
      if env['CC']:
          #pipe = SCons.Action._subproc(env, [env['CC'], '-dumpversion'],
          pipe = SCons.Action._subproc(env, [env['CC'], '--version'],
                                       stdin = 'devnull',
                                       stderr = 'devnull',
                                       stdout = subprocess.PIPE)
          if pipe.wait() != 0: return
          # -dumpversion was added in GCC 3.0.  As long as we're supporting
          # GCC versions older than that, we should use --version and a
          # regular expression.
          #line = pipe.stdout.read().strip()
          #if line:
          #    env['CCVERSION'] = line
          line = pipe.stdout.readline()
          match = re.search(r'[0-9]+(\.[0-9]+)+', line)
          if match:
              env['CCVERSION'] = match.group(0)
  
  def exists(env):
      return env.Detect(compilers)
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  