This is a simple C interface to the black-box solver of phc,
written by Nobuki Takayama (taka@math.kobe-u.ac.jp).
Requirements:
  1) executable version of phc must be on /tmp;
  2) user of this program has write permissions to create
     the files "input" and "output" in the directory where
     this program is executed.

Files :
  call_phc.c : C program
  input      : simple example

Type
      gcc -o call_phc call_phc.c
to create the program call_phc.