Fix building on OS X 10.10

rpcs3/Emu/Cell/PPUThread.h

@@ -887,6 +887,20 @@ struct cast_ppu_gpr<u32, false>
 	}
 };
 
+template<>
+struct cast_ppu_gpr<unsigned long, false>
+{
+	__forceinline static u64 to_gpr(const unsigned long& value)
+	{
+		return value;
+	}
+
+	__forceinline static unsigned long from_gpr(const u64 reg)
+	{
+		return static_cast<unsigned long>(reg);
+	}
+};
+
 template<>
 struct cast_ppu_gpr<u64, false>
 {

rpcs3/Emu/FS/VFS.h

@@ -61,7 +61,7 @@ struct VFS
 
 	struct links_sorter
 	{
-		bool operator()(const std::vector<std::string>& a, const std::vector<std::string>& b)
+		bool operator()(const std::vector<std::string>& a, const std::vector<std::string>& b) const
 		{
 			return b.size() < a.size();
 		}

rpcs3/Emu/IdManager.h

@@ -252,7 +252,7 @@ public:
 		else
 		{
 			assert(!"Invalid ID type");
-			return{};
+			return std::set<u32>{};
 		}
 	}
 };

rpcs3/Emu/Memory/vm.h

@@ -84,6 +84,21 @@ namespace vm
 		}
 	};
 
+    template<>
+    struct cast_ptr<unsigned long>
+    {
+        __forceinline static u32 cast(const unsigned long addr, const char* func)
+        {
+            const u32 res = static_cast<u32>(addr);
+            if (res != addr)
+            {
+                vm::error(addr, func);
+            }
+
+            return res;
+        }
+    };
+
 	template<>
 	struct cast_ptr<u32>
 	{