Fix build, and clean up unused variables.

Author: 0-wiz-0

src/OutputContext.cc

@@ -35,6 +35,7 @@
 
 #include "OutputContext.h"
 
+#include <algorithm>
 #include <string>
 
 #include "globals.h"

src/OutputContextCm.cc

@@ -42,10 +42,6 @@
 #include "util.h"
 
 
-static struct {
-    bool operator()(GamePtr a, GamePtr b) const { return a->name < b->name; }
-} cmp_game;
-
 typedef struct output_context_cm output_context_cm_t;
 
 

src/update_romdb.cc

@@ -138,7 +138,7 @@ bool update_romdb(bool force) {
             filename = make_unique_path(filename);
         }
         output = OutputContext::create(OutputContext::FORMAT_DB, filename, 0);
-        auto new_db = dynamic_cast<OutputContextDb*>(output.get())->get_db();
+        // auto new_db = dynamic_cast<OutputContextDb*>(output.get())->get_db();
 
         size_t dat_idx = 0;
         for (const auto& dat : dats_to_use) {