altoslib: Make AltosGPSSat implement Serializable

This is required to save state values in AltosDroid.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/altoslib/AltosGPSSat.java b/altoslib/AltosGPSSat.java
index 3f9e479e..3ded7b01 100644
--- a/altoslib/AltosGPSSat.java
+++ b/altoslib/AltosGPSSat.java
@@ -16,8 +16,11 @@
  */
 
 package org.altusmetrum.altoslib_9;
+import java.text.*;
+import java.util.concurrent.*;
+import java.io.*;
 
-public class AltosGPSSat {
+public class AltosGPSSat implements Serializable {
 	public int	svid;
 	public int	c_n0;