From 6c9f755f8c21dc870c8c717dc3a3c30d5509a2bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Laura=20Kl=C3=BCnder?= <laura@codingcatgirl.de>
Date: Tue, 24 Oct 2017 02:07:56 +0200
Subject: [PATCH] force standard size struct

---
 src/c3nav/mapdata/cache.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/c3nav/mapdata/cache.py b/src/c3nav/mapdata/cache.py
index b05a6ff2..53ddf735 100644
--- a/src/c3nav/mapdata/cache.py
+++ b/src/c3nav/mapdata/cache.py
@@ -40,7 +40,7 @@ class MapHistory:
         try:
             with open(filename, 'rb') as f:
                 resolution, x, y, width, height, num_updates = struct.unpack('<BHHHHH', f.read(11))
-                updates = struct.unpack('II'*num_updates, f.read(num_updates*8))
+                updates = struct.unpack('<II'*num_updates, f.read(num_updates*8))
                 updates = list(zip(updates[0::2], updates[1::2]))
                 # noinspection PyTypeChecker
                 data = np.fromstring(f.read(width*height*2), np.uint16).reshape((height, width))
@@ -56,7 +56,7 @@ class MapHistory:
         with open(filename, 'wb') as f:
             f.write(struct.pack('<BHHHHH', self.resolution, self.x, self.y, *reversed(self.data.shape),
                                 len(self.updates)))
-            f.write(struct.pack('II'*len(self.updates), *chain(*self.updates)))
+            f.write(struct.pack('<II'*len(self.updates), *chain(*self.updates)))
             f.write(self.data.tobytes('C'))
 
     def add_new(self, geometry):