scons: Add warning for missing declarations

This patch enables warnings for missing declarations. To avoid issues
with SWIG-generated code, the warning is only applied to non-SWIG
code.

src/base/debug.cc

@@ -33,8 +33,6 @@
 
 #include <algorithm>
 #include <csignal>
-#include <map>
-#include <vector>
 
 #include "base/cprintf.hh"
 #include "base/debug.hh"
@@ -62,7 +60,6 @@ breakpoint()
 //
 // Flags for debugging purposes.  Primarily for trace.hh
 //
-typedef std::map<string, Flag *> FlagsMap;
 int allFlagsVersion = 0;
 FlagsMap &
 allFlags()

src/base/debug.hh

@@ -32,6 +32,7 @@
 #ifndef __BASE_DEBUG_HH__
 #define __BASE_DEBUG_HH__
 
+#include <map>
 #include <string>
 #include <vector>
 
@@ -110,6 +111,19 @@ class CompoundFlag : public SimpleFlag
     void disable();
 };
 
+typedef std::map<std::string, Flag *> FlagsMap;
+FlagsMap &allFlags();
+
+Flag *findFlag(const std::string &name);
+
+bool changeFlag(const char *s, bool value);
+
 } // namespace Debug
 
+void setDebugFlag(const char *string);
+
+void clearDebugFlag(const char *string);
+
+void dumpDebugFlags();
+
 #endif // __BASE_DEBUG_HH__

src/base/hostinfo.cc

@@ -44,6 +44,7 @@
 #include <cstring>
 #include <string>
 
+#include "base/hostinfo.hh"
 #include "base/misc.hh"
 #include "base/str.hh"
 #include "base/types.hh"

src/base/hostinfo.hh

@@ -35,6 +35,8 @@
 
 #include "base/types.hh"
 
+std::string __get_hostname();
+
 std::string &hostname();
 
 uint64_t procInfo(const char *filename, const char *target);

src/base/inet.hh

@@ -463,6 +463,7 @@ class UdpPtr
     int pstart() const { return off() + get()->size(); }
 };
 
+uint16_t __tu_cksum(const IpPtr &ip);
 uint16_t cksum(const UdpPtr &ptr);
 
 int hsplit(const EthPacketPtr &ptr);

src/base/statistics.cc

@@ -49,7 +49,6 @@ using namespace std;
 namespace Stats {
 
 std::string Info::separatorString = "::";
-typedef map<const void *, Info *> MapType;
 
 // We wrap these in a function to make sure they're built in time.
 list<Info *> &
@@ -114,7 +113,6 @@ StorageParams::~StorageParams()
 {
 }
 
-typedef map<std::string, Info *> NameMapType;
 NameMapType &
 nameMap()
 {

src/base/statistics.hh

@@ -3164,6 +3164,16 @@ void registerDumpCallback(Callback *cb);
 
 std::list<Info *> &statsList();
 
+typedef std::map<const void *, Info *> MapType;
+MapType &statsMap();
+
+typedef std::map<std::string, Info *> NameMapType;
+NameMapType &nameMap();
+
+bool validateStatName(const std::string &name);
+
 } // namespace Stats
 
+void debugDumpStats();
+
 #endif // __BASE_STATISTICS_HH__

src/base/stats/text.hh

@@ -35,6 +35,7 @@
 #include <string>
 
 #include "base/stats/output.hh"
+#include "base/stats/types.hh"
 #include "base/output.hh"
 
 namespace Stats {
@@ -75,6 +76,8 @@ class Text : public Output
     virtual void end();
 };
 
+std::string ValueToString(Result value, int precision);
+
 Output *initText(const std::string &filename, bool desc);
 
 } // namespace Stats

src/base/userinfo.cc

@@ -34,6 +34,8 @@
 
 #include <string>
 
+#include "base/userinfo.hh"
+
 std::string
 username()
 {