diff --git a/ext/tpx/CarbonDioxide.cpp b/ext/tpx/CarbonDioxide.cpp
index 4f80d2bbe..d0859aa06 100755
--- a/ext/tpx/CarbonDioxide.cpp
+++ b/ext/tpx/CarbonDioxide.cpp
@@ -256,7 +256,7 @@ double CarbonDioxide::up() {
 */
 
 double CarbonDioxide::sp() {
-    double Tinverse = 1.0/T;   
+    //double Tinverse = 1.0/T;   
     double T2inverse = pow(T, -2);
     double T3inverse = pow(T, -3);
     double T4inverse = pow(T, -4);
diff --git a/ext/tpx/Makefile.in b/ext/tpx/Makefile.in
index 9f6be1d5b..dcbd3527d 100755
--- a/ext/tpx/Makefile.in
+++ b/ext/tpx/Makefile.in
@@ -1,5 +1,7 @@
 #/bin/sh
-
+#
+# $Id$
+#
 .SUFFIXES :
 .SUFFIXES : .cpp .d .o
 
diff --git a/ext/tpx/RedlichKwong.cpp b/ext/tpx/RedlichKwong.cpp
index 185f73b95..f52f1f8f8 100644
--- a/ext/tpx/RedlichKwong.cpp
+++ b/ext/tpx/RedlichKwong.cpp
@@ -31,7 +31,7 @@ namespace tpx {
     double RedlichKwong::sp() {
 	const double Pref = 101325.0;
 	double rgas = 8314.3/m_mw;
-        double ss = rgas*(log(Pref/(Rho*rgas*T)));
+        //double ss = rgas*(log(Pref/(Rho*rgas*T)));
         double sr = sresid(); 
         double p = Pp();
 	double s = rgas*(log(Pref/p)) + sr + m_entropy_offset;
diff --git a/ext/tpx/Sub.cpp b/ext/tpx/Sub.cpp
index f5a19ca1f..dda02e7ab 100755
--- a/ext/tpx/Sub.cpp
+++ b/ext/tpx/Sub.cpp
@@ -15,11 +15,13 @@ namespace tpx {
         return string(buf);
     }
 
+/*
     static string int2str(int n, string fmt="%d") {
         char buf[30];
         sprintf(buf, fmt.c_str(), n);
         return string(buf);
     }
+*/
 
     string TPX_Error::ErrorMessage = "";
     string TPX_Error::ErrorProcedure = "";