🚀 go-pugleaf

Howdy:

I ran into two (easily fixed) problems when compiling wdiff-0.03:

 1. In getopt.h, the prototype for getopt should not specify
    const char arguments unless the GNU library is being used---
    this problem is fixed in most of the getopt.h's distributed
    with the current utilities (including diff 2.0).  Without the
    fix, wdiff would not compile under AIX.
 2. In wdiff.c, the prototype for strstr should not specify a
    const char return value---a strstr prototype specifying a
    char return value is provided in <strings.h> on a number
    of OS's, including AIX, HP-UX, and ULTRIX.

Thanks!

						--Cliff Krumvieda