#5 0.6.1 add #include <string.h>

[Jari Aalto]

Here is patch to fix getopt.c under Cygwin

[Raphaël]

I doubt it's the right fix to unconditional include it.

string.h is included either if:
- It's VMS
- It's GNU_LIBRARY
- You HAVE_STRING_H

If all of these are wrong, you should rather check the result of ./configure and config.h