def configure(cnf):
  cnf.setenv('msvc')
  cnf.load('msvc')
  cnf.write_config_header('msvc/config.h', remove=False)

  cnf.setenv('gcc', env = cnf.env.derive())
  cnf.load('gcc')
  cnf.write_config_header('gcc/config.h', remove=False)

def options(opt):
  opt.load('gcc')

def build(bld):
  includes = []
  for i in range(0,200):
    includes.append('dir' + str(i))

  print bld.all_envs['gcc'].derive()
  bld(features='c cprogram',
      source=['a/main.c'],
      target='main',
      includes = includes,
      env = bld.all_envs['gcc'].derive(),
      )