diff --git a/src/crypto/crc.cpp b/src/crypto/crc.cpp
index 14fd41c..c749a9d 100644
--- a/src/crypto/crc.cpp
+++ b/src/crypto/crc.cpp
@@ -1,4 +1,5 @@
 #include <stdint.h>
+#include <stdlib.h>
 //#include <zlib.h>
 /* Tables generated with code like the following:
 
diff --git a/src/thread/context.hpp b/src/thread/context.hpp
index 01a220e..d7ac57e 100644
--- a/src/thread/context.hpp
+++ b/src/thread/context.hpp
@@ -8,6 +8,9 @@
 
 #if BOOST_VERSION >= 105400
   #include <boost/coroutine/stack_context.hpp>
+  #include <boost/coroutine/stack_allocator.hpp>
+  namespace bc  = boost::context;
+  namespace bco = boost::coroutines;
 #elif BOOST_VERSION >= 105300
   #include <boost/coroutine/stack_allocator.hpp>
   namespace bc  = boost::context;