boost_1_48_patch4.diff

diff --git a/boost_1_48_0/boost/uuid/seed_rng.hpp b/boost_1_48_0/boost/uuid/seed_rng.hpp
index b8beb2f..f870836 100644
--- a/boost_1_48_0/boost/uuid/seed_rng.hpp
+++ b/boost_1_48_0/boost/uuid/seed_rng.hpp
@@ -109,6 +109,8 @@ public:
     }
 
 private:
+    inline void ignore_size(size_t) {}
+
     static unsigned int * sha1_random_digest_state_()
     {
         // intentionally left uninitialized
@@ -149,7 +151,7 @@ private:
 
             if(random_)
             {
-                std::fread( buffer, 1, 20, random_ );
+                ignore_size(std::fread( buffer, 1, 20, random_ ));
             }
 
             // using an uninitialized buffer[] if fopen fails