anchor.diff:  cflags = -g
   ----------------
   
  -can be used on the right side of an equals sign, deferencing it with
  +can be used on the right side of an equals sign, dereferencing it with
   a dollar sign, like this:
   
   ----------------
  
positive.code: -- short names for longer commands, like how to run the compiler --
  along with a list of _build_ statements saying how to build files
  using the rules -- which rule to apply to which inputs to produce
  which ouputs.
  
  Conceptually, `build` statements describe the dependency graph of your
  project, while `rule` statements describe how to generate the files
  
negative.code: Creating .ninja files
  ---------------------
  Here's a basic `.ninja` file that demonstrates most of the syntax.
  It will be used as an example for the following sections.
  
  ---------------------------------
  cflags = -Wall
  