diff --git a/eo/src/ga/make_op.h b/eo/src/ga/make_op.h
index 8c46549f1..045148eca 100644
--- a/eo/src/ga/make_op.h
+++ b/eo/src/ga/make_op.h
@@ -115,11 +115,11 @@ eoGenOp<EOT> & do_make_op(eoParser& _parser, eoState& _state, eoInit<EOT>& _init
       throw std::runtime_error("Invalid uRate");
 
     // minimum check
-    bool bCross = true;
+    // bool bCross = true; // not used ?
     if (onePointRateParam.value()+twoPointsRateParam.value()+uRateParam.value()==0)
       {
         std::cerr << "Warning: no crossover" << std::endl;
-        bCross = false;
+        // bCross = false;
       }
 
     // Create the CombinedQuadOp
@@ -162,11 +162,11 @@ eoGenOp<EOT> & do_make_op(eoParser& _parser, eoState& _state, eoInit<EOT>& _init
       throw std::runtime_error("Invalid oneBitRate");
 
     // minimum check
-    bool bMut = true;
+    // bool bMut = true; // not used ?
     if (bitFlipRateParam.value()+oneBitRateParam.value()==0)
       {
         std::cerr << "Warning: no mutation" << std::endl;
-        bMut = false;
+        // bMut = false;
       }
 
     // Create the CombinedMonOp
diff --git a/eo/src/utils/eoLogger.cpp b/eo/src/utils/eoLogger.cpp
index e478ba093..f052d7955 100644
--- a/eo/src/utils/eoLogger.cpp
+++ b/eo/src/utils/eoLogger.cpp
@@ -194,8 +194,7 @@ int eoLogger::outbuf::overflow(int_type c)
       {
         if (_fd >= 0 && c != EOF)
           {
-              size_t num;
-              num = ::write(_fd, &c, 1);
+              ::write(_fd, &c, 1);
           }
       }
     return c;