Many options now have additive effect

For example, -A and -V used to override each other, whereas now:

  -A    report the average amount
  -V    report all amounts at current value
  -AV   report the current value of the average
  -VA   report the average of all current values

1 files changed, 1 insertions, 0 deletions

diff --git a/src/global.h b/src/global.h
index ce0534b0..7429b1f5 100644
--- a/src/global.h
+++ b/src/global.h
@@ -50,6 +50,7 @@ class global_scope_t : public noncopyable, public scope_t
 {
   shared_ptr<session_t> session_ptr;
   ptr_list<report_t>    report_stack;
+  empty_scope_t         empty_scope;
 
 public:
   global_scope_t(char ** envp);