krb5-build/1101: build bugs on hpux10 due to missing XOPEN_SOURCE_EXTENDED

[nneul@umr.edu]

>Number:         1101
>Category:       krb5-build
>Synopsis:       hpux10 build bugs - htons/ntohs/gethostbyname_r
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    tlyu
>State:          open
>Class:          sw-bug
>Submitter-Id:   unknown
>Arrival-Date:   Tue Apr 30 16:52:01 EDT 2002
>Last-Modified:
>Originator:     Nathan Neulinger
>Organization:
-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul at umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216
>Release:        krb5-current-20020427
>Environment:
	
System: HP-UX planck03 B.10.20 A 9000/782 2010493739 two-user license

>Description:
h_errno, ntohs, htons all need _XOPEN_SOURCE_EXTENDED to be defined

gethostbyname_r is failing to determine a return type, it also needs
_XOPEN_SOURCE_EXTENDED.

>How-To-Repeat:
build on an hpux 10 box
>Fix:
add configure check for whether _XOPEN_SOURCE_EXTENDED is needed
>Audit-Trail:
>Unformatted: