BIND 10 #474: bind10 doesn't compile with clang++ on FreeBSD

[BIND 10 Development]

#474: bind10 doesn't compile with clang++ on FreeBSD
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  Reporter:  jinmei        |            Owner:  jreed                
      Type:  defect        |           Status:  new                  
  Priority:  major         |        Milestone:  y2 12 month milestone
 Component:  build system  |         Keywords:                       
 Sensitive:  0             |   Estimatedhours:  0                    
     Hours:  0             |         Billable:  1                    
Totalhours:  0             |         Internal:  0                    
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 That is due to failure in configuring libtool for creating shared objects.

 See the problem about "hidden symbol `dso_handle'" at
 http://wiki.freebsd.org/PortsAndClang
 and/or
 http://lists.freebsd.org/pipermail/freebsd-
 current/2010-October/020323.html

 BIND 10 suffers from the same problem.

 According to these links FreeBSD worked around this issue by modifying the
 configure script.  We could do the same, but I believe I found a bit
 better solution (although still an ugly hack).

 Could someone review the attached patch?  This is probably a topic for
 Jeremy, and so I'm going to give the ticket to him.

 Another note: with this patch merged, we can build and test bind10 with
 clang++ on freebsd8-32-1-on-virt1.  So it would be good idea to
 incorporate it to the buildbot framework.  clang++ can find errors that
 other compilers cannot, so it will help keep our code cleaner and more
 portable.

-- 
Ticket URL: <http://bind10.isc.org/ticket/474>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development