f84 = f83 * 84
	f85 = f84 * 85
	f86 = f85 * 86
	f87 = f86 * 87
	f88 = f87 * 88
	f89 = f88 * 89
	f90 = f89 * 90
	f91 = f90 * 91
	f92 = f91 * 92
	f93 = f92 * 93
	f94 = f93 * 94
	f95 = f94 * 95
	f96 = f95 * 96
	f97 = f96 * 97
	f98 = f97 * 98
	f99 = f98 * 99 // GC_ERROR "overflow"

				fmt.Fprintf(h, "CXX ID=%q\n", cxxID)
			}
		}
		if len(p.FFiles) > 0 {
			fcExe := b.fcExe()
			fmt.Fprintf(h, "FC=%q %q\n", fcExe, fflags)
			if fcID, _, err := b.gccToolID(fcExe[0], "f95"); err == nil {
				fmt.Fprintf(h, "FC ID=%q\n", fcID)
			}
		}
		// TODO(rsc): Should we include the SWIG version?
	}
	if p.Internal.Cover.Mode != "" {