nd example programs.

2. Building on Linux/Unix/MacOS

  The software can be downloaded from either a release tar file or
  from the current head of the source.  For the latter, go to a directory
  and clone the tree into it (note the '.' at the end):
     cd [some directory]
     git clone https://github.com/DanBloomberg/leptonica.git .

  There are three ways to build the library:

    (1) By customization:  Use the existing static makefile,
        src/makefile.static and customize the build by setting f