Apply patch to fix serialization on ARM.

[ahendrix]

Apply patch ask_arm_flag_serialization.h.diff from https://code.ros.org/trac/ros/ticket/2883

This fixes ros/ros_comm#184

[sem23]

--- ./include/ros/serialization.h   2013-03-05 10:07:18.210946502 +0100
+++ ./patch/serialization.h 2013-03-05 10:03:51.195321502 +0100
@@ -170,6 +170,7 @@
   return Serializer::serializedLength(t);
 }
 
+#if (!(defined __ARMEL__ && defined __VFP_FP__))
 #define ROS_CREATE_SIMPLE_SERIALIZER(Type) \
   template<> struct Serializer \
   { \
@@ -188,6 +189,26 @@
       return sizeof(Type); \
     } \
   };
+#else
+#define ROS_CREATE_SIMPLE_SERIALIZER(Type) \
+  template<> struct Serializer \
+  { \
+    template inline static void write(Stream& stream, const Type v) \
+    { \
+      memcpy((void*)stream.advance(sizeof(v)), (const void*) &v, sizeof(v)); \
+    } \
+    \
+    template inline static void read(Stream& stream, Type& v) \
+    { \
+      memcpy((void*)&v, (const void*) stream.advance(sizeof(v)), sizeof(v)); \
+    } \
+    \
+    inline static uint32_t serializedLength(const Type&) \
+    { \
+      return sizeof(Type); \
+    } \
+  };
+#endif
 
 ROS_CREATE_SIMPLE_SERIALIZER(uint8_t);
 ROS_CREATE_SIMPLE_SERIALIZER(int8_t);

[dirk-thomas]

A patch was already committed to roscpp_core as references above. Please take a look to that patch and comment if you think it needs further tweaking.