🚀 go-pugleaf

The configure in shellutils tries to figure out if tzname is defined by
#including <time.h> and declaring char **tzname.  Unfortunately, HPUX 6.5
declares char *tzname[], the definitions clash, the test compile fails
(under cc or gcc 2.2.2), and you don't get HAVE_TZNAME.  As a result,
the compilation of strftime either fails (for cc), or suceeds with a
warning for gcc.  The gcc-built "date" then dumps core whenever you
try to run it...  

I'm not sure what the best patch is, unfortunately; perhaps just testing
both char **tzname and char *tzname[] when checking HAVE_TZNAME.

I used:

diff -r1.1 configure
608c608
< #ifndef tzname /* For SGI.  */
---
> #if !defined(tzname) && !defined(hpux) /* For SGI (or hpux).  */

But this is probably a crock, since other hpuxen may define tzname
but not declare it in <time.h>.

Chris Metcalf
MIT LCS