F.1 Introduction
 F.2 Before starting
 F.3 Compiling using make
  F.3.1 Basic compilation
  F.3.2 Compiling for another target
  F.3.3 Installing the new compiler
  F.3.4 Speeding up compilation
  F.3.5 Adding debug information
  F.3.6 Various other options
 F.4 Compiling by hand
  F.4.1 Compiling the RTL
  F.4.2 Compiling the compiler