Fix build warnings and .gitignore.

* Comment out unused local function for both clang and g++.
* Get rid of numerous Boost warnings for clang.
* Remove some unused local variables.
* Put TAGS into the .gitignore.

src/ripple/module/app/shamap/SHAMapSync.cpp

@@ -651,10 +651,14 @@ bool SHAMap::hasLeafNode (uint256 const& tag, uint256 const& targetNodeHash)
     return false; // If this was a matching leaf, we would have caught it already
 }
 
-static void addFPtoList (std::list<SHAMap::fetchPackEntry_t>& list, const uint256& hash, const Blob& blob)
+#if 0
+static
+void addFPtoList (std::list<SHAMap::fetchPackEntry_t>& list,
+                  const uint256& hash, const Blob& blob)
 {
     list.push_back (SHAMap::fetchPackEntry_t (hash, blob));
 }
+#endif
 
 /**
 @param have A pointer to the map that the recipient already has (if any).

src/ripple/overlay/impl/basic_message.h

@@ -59,9 +59,8 @@ private:
     // request
     beast::http::method_t method_;
     std::string url_;
-    
+
     // response
-    int status_;
     std::string reason_;
 
     // message
@@ -102,7 +101,6 @@ public:
 
     basic_message()
         : method_ (beast::http::method_t::http_get)
-        , status_ (200)
         , version_ (1, 1)
     {
     }
@@ -173,4 +171,4 @@ write (StreamBuf& stream, basic_message const& m)
 
 } // ripple
 
-#endif
+#endif

src/ripple/unity/data.cpp

@@ -83,7 +83,6 @@
 static const std::uint64_t tenTo14 = 100000000000000ull;
 static const std::uint64_t tenTo14m1 = tenTo14 - 1;
 static const std::uint64_t tenTo17 = tenTo14 * 1000;
-static const std::uint64_t tenTo17m1 = tenTo17 - 1;
 #include <ripple/module/data/protocol/STAmount.cpp>
 #include <ripple/module/data/protocol/STAmountRound.cpp>