Make Solaris build more user-friendly w.r.t. installing TAP driver.

Tell the user what to do if the TAP driver is missing, and don't rely on them
removing Make.config so that the Makefile goes looking for it again.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/tun.c b/tun.c
index 1ff4b24..a581327 100644 (file)
--- a/tun.c
+++ b/tun.c
@@ -41,6 +41,10 @@
 #if defined(__sun__)
 #include <stropts.h>
 #include <sys/sockio.h>
+#include <net/if_tun.h>
+#ifndef TUNNEWPPA
+#error "Install TAP driver from http://www.whiteboard.ne.jp/~admin2/tuntap/"
+#endif
 #endif
 
 #include "openconnect.h"