[patch] Fix configure glitch on Solaris

[Eric Botcazou]

Hi,

natVMNetworkInterfacePosix.cc fails to compile under Solaris because 'struct 
ifconf' is not defined because net/if.h is not included, the root problem 
being that net/if.h requires sys/socket.h and the configure machinery doesn't 
provide it.

Hence the attached patch, tested on SPARC/Solaris 9 and AMD64/Linux.  OK for 
mainline?


2009-12-06  Eric Botcazou  <ebotcazou@adacore.com>

	* configure.ac (net/if.h check): Include sys/socket.h if present.
	* configure: Regenerate.


-- 
Eric Botcazou
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