code: def generate(env):
      
  
      fortran.generate(env)
  
      env['FORTRAN']        = 'f90'
      env['FORTRANCOM']     = '$FORTRAN $FORTRANFLAGS $_FORTRANMODFLAG $_FORTRANINCFLAGS /compile_only ${SOURCES.windows} /object:${TARGET.windows}'
      env['FORTRANPPCOM']   = '$FORTRAN $FORTRANFLAGS $CPPFLAGS $_CPPDEFFLAGS $_FORTRANMODFLAG $_FORTRANINCFLAGS /compile_only ${SOURCES.windows} /object:${TARGET.windows}'
      env['SHFORTRANCOM']   = '$SHFORTRAN $SHFORTRANFLAGS $_FORTRANMODFLAG $_FORTRANINCFLAGS /compile_only ${SOURCES.windows} /object:${TARGET.windows}'
      env['SHFORTRANPPCOM'] = '$SHFORTRAN $SHFORTRANFLAGS $CPPFLAGS $_CPPDEFFLAGS $_FORTRANMODFLAG $_FORTRANINCFLAGS /compile_only ${SOURCES.windows} /object:${TARGET.windows}'
      env['OBJSUFFIX']      = '.obj'
      env['FORTRANMODDIR'] = '${TARGET.dir}'
      env['FORTRANMODDIRPREFIX'] = '/module:'
      env['FORTRANMODDIRSUFFIX'] = ''
docs: Add Builders and construction variables for compaq visual fortran to an Environment.