pkg/49118: update ap-auth-kerb to build for apache 2.

[nshalman-pkgsrc%elys.com@localhost]

>Number:         49118
>Category:       pkg
>Synopsis:       update ap-auth-kerb to build for apache 2.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 15 15:25:00 +0000 2014
>Originator:     Nahum Shalman
>Release:        pkgsrc 2014Q2 and earlier
>Organization:
Elysium Digital, L.L.C.
>Environment:
SmartOS (SunOS shalman.org 5.11 joyent_20140710T182029Z i86pc i386 i86pc 
Solaris)
>Description:
The Makefile for ap-auth-kerb doesn't currently support apache24.

The patches from the Fedora project appear to fix the build.
http://pkgs.fedoraproject.org/cgit/mod_auth_kerb.git/tree/

The spec file applies them in this order:
Patch1: mod_auth_kerb-5.4-rcopshack.patch
Patch2: mod_auth_kerb-5.4-fixes.patch
Patch3: mod_auth_kerb-5.4-s4u2proxy.patch
Patch4: mod_auth_kerb-5.4-httpd24.patch
Patch5: mod_auth_kerb-5.4-delegation.patch
Patch6: mod_auth_kerb-5.4-cachedir.patch
Patch7: mod_auth_kerb-5.4-longuser.patch
Patch8: mod_auth_kerb-5.4-handle-continue.patch

I have converted those patches (plus the original
pkgsrc one) into a pair of per-file patches.

I also explicitly force the use of the pkgsrc
kerberos library on SunOS because the platform
kerberos doesn't work to build let alone run
this package
>How-To-Repeat:
1. Install pkgsrc
2. Install apache24
3. Try to install mod_auth_kerb for apache24
4. Experience sadness.
>Fix:
My proposed patch can be retrieved raw from here:
https://github.com/nshalman/pkgsrc/commit/6c98bfb520b6ed4a8eb0f6f37b0967a49e7e0ef8.patch