Fix detection of ipv6 on Solaris
Fix detection of ipv6 on Solaris

The configuration script detects whether linking with -lsocket is
necessary but doesn't add -lsocket to LIBS.  This lets the ipv6 test
fail.

Signed-off-by: Dennis Stosberg <7965a665163253a12f43312bf69d07012a113a2a@stosberg.net>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git