Can not find sys/statfs.h

How can i include and use this(sys/statfs.h) header file under QNX 6?
I guess this header file was not set a default .h file.

please help!

You should not need it. I would comment it out, compile, and see what is missing. Then search for the QNX 6 header file where the missing is found.

The QNX6 equivalent is sys/statvfs.h