exclude CreatePidFile() function on WIN32 as it is unused

src/bitcoind.cpp

@@ -74,7 +74,7 @@ bool AppInit(int argc, char* argv[])
             int ret = CommandLineRPC(argc, argv);
             exit(ret);
         }
-#if !defined(WIN32)
+#ifndef WIN32
         fDaemon = GetBoolArg("-daemon", false);
         if (fDaemon)
         {

src/util.cpp

@@ -1118,6 +1118,7 @@ boost::filesystem::path GetPidFile()
     return pathPidFile;
 }
 
+#ifndef WIN32
 void CreatePidFile(const boost::filesystem::path &path, pid_t pid)
 {
     FILE* file = fopen(path.string().c_str(), "w");
@@ -1127,6 +1128,7 @@ void CreatePidFile(const boost::filesystem::path &path, pid_t pid)
         fclose(file);
     }
 }
+#endif
 
 bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest)
 {

src/util.h

@@ -208,7 +208,9 @@ boost::filesystem::path GetDefaultDataDir();
 const boost::filesystem::path &GetDataDir(bool fNetSpecific = true);
 boost::filesystem::path GetConfigFile();
 boost::filesystem::path GetPidFile();
+#ifndef WIN32
 void CreatePidFile(const boost::filesystem::path &path, pid_t pid);
+#endif
 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
 #ifdef WIN32
 boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate = true);