Merge pull request #10496 from degano/pythia6_tmpnam_76X

Fix warning raised by deprecated use of tmpnam.

GeneratorInterface/Pythia6Interface/src/Pythia6Service.cc

@@ -10,6 +10,7 @@
 #include <boost/bind.hpp>
 #include <boost/algorithm/string/classification.hpp>
 #include <boost/algorithm/string/split.hpp>
+#include <boost/filesystem.hpp>
 
 #include "CLHEP/Random/RandomEngine.h"
 
@@ -385,7 +386,7 @@ void Pythia6Service::setSLHAFromHeader( const std::vector<std::string> &lines )
 	std::set<std::string> blocks;
 	unsigned int model = 0, subModel = 0;
 
-	const char *fname = std::tmpnam(NULL);
+	const char *fname = boost::filesystem::unique_path().c_str();
 	std::ofstream file(fname, std::fstream::out | std::fstream::trunc);
 	std::string block;
 	for(std::vector<std::string>::const_iterator iter = lines.begin();