Build fixes

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>

src/core/threading.cpp

@@ -150,7 +150,7 @@ static void _thread_context_dump(int signum, siginfo_t* info, void* _context) {
     if (VERBOSITY() >= 2) {
         printf("in thread_context_dump, tid=%d\n", tid);
         printf("%p %p %p\n", context, &context, context->uc_mcontext.fpregs);
-        printf("old rip: 0x%lx\n", context->uc_mcontext.gregs[REG_RIP]);
+        printf("old rip: 0x%llx\n", context->uc_mcontext.gregs[REG_RIP]);
     }
 
     pushThreadState(tid, context);

src/core/types.h

@@ -215,7 +215,8 @@ public:
 
 typedef std::vector<CompiledFunction*> FunctionList;
 class CallRewriteArgs;
-struct CLFunction {
+class CLFunction {
+public:
     int num_args;
     int num_defaults;
     bool takes_varargs, takes_kwargs;