configure: socketpair needs -lsocket on Solaris.

configure

@@ -18166,7 +18166,6 @@ CFLAGS="$CFLAGS $BUILTINFLAG"
 
 
 
-
 for ac_func in \
 	_pclose \
 	_popen \
@@ -18220,7 +18219,6 @@ for ac_func in \
 	sigaltstack \
 	sigprocmask \
 	snprintf \
-	socketpair \
 	spawnvp \
 	statfs \
 	statvfs \
@@ -18871,6 +18869,7 @@ fi
 
 
 
+
 for ac_func in \
 	getaddrinfo \
 	getnameinfo \
@@ -18880,6 +18879,7 @@ for ac_func in \
 	getservbyport \
 	inet_network \
 	sendmsg \
+	socketpair \
 
 do
 as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`

configure.ac

@@ -1482,7 +1482,6 @@ AC_CHECK_FUNCS(\
 	sigaltstack \
 	sigprocmask \
 	snprintf \
-	socketpair \
 	spawnvp \
 	statfs \
 	statvfs \
@@ -1536,6 +1535,7 @@ AC_CHECK_FUNCS(\
 	getservbyport \
 	inet_network \
 	sendmsg \
+	socketpair \
 )
 
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