code: def get_recipe_env(self, arch=None, with_flags_in_cc=True):
          
          env = super(GeventRecipe, self).get_recipe_env(arch, with_flags_in_cc)
          # CFLAGS may only be used to specify C compiler flags, for macro definitions use CPPFLAGS
          regex = re.compile(r'(?:\s|^)-[DI][\S]+')
          env['CPPFLAGS'] = ''.join(re.findall(regex, env['CFLAGS'])).strip()
          env['CFLAGS'] = re.sub(regex, '', env['CFLAGS'])
          info('Moved "{}" from CFLAGS to CPPFLAGS.'.format(env['CPPFLAGS']))
          # LDFLAGS may only be used to specify linker flags, for libraries use LIBS
          regex = re.compile(r'(?:\s|^)-l[\w\.]+')
          env['LIBS'] = ''.join(re.findall(regex, env['LDFLAGS'])).strip()
          env['LDFLAGS'] = re.sub(regex, '', env['LDFLAGS'])
          info('Moved "{}" from LDFLAGS to LIBS.'.format(env['LIBS']))
          return env
docs: - Moves all -I<inc> -D<macro> from CFLAGS to CPPFLAGS environment.
          - Moves all -l<lib> from LDFLAGS to LIBS environment.
          - Fixes linker name (use cross compiler)  and flags (appends LIBS)