diff --git a/eo/src/do/make_checkpoint.h b/eo/src/do/make_checkpoint.h
index b0852c0b..62fcc838 100644
--- a/eo/src/do/make_checkpoint.h
+++ b/eo/src/do/make_checkpoint.h
@@ -188,6 +188,7 @@ eoCheckPoint<EOT>& do_make_checkpoint(eoParser& _parser, eoState& _state, eoEval
 	fileMonitor->add(*secondStat);
       }
 
+#if !defined(NO_GNUPLOT)
     if (plotBestParam.value())    // an eoGnuplot1DMonitor for best & average
       {
 	string stmp = dirNameParam.value() + "_gnu_best.xg";
@@ -218,6 +219,7 @@ eoCheckPoint<EOT>& do_make_checkpoint(eoParser& _parser, eoState& _state, eoEval
 	// and of course add it to the checkpoint
 	checkpoint->add(*fitSnapshot);
       }
+#endif
 
     //////////////////////////////////
     // State savers
diff --git a/eo/src/eoGenOp.h b/eo/src/eoGenOp.h
index 8facd01f..74b0bc2c 100644
--- a/eo/src/eoGenOp.h
+++ b/eo/src/eoGenOp.h
@@ -29,6 +29,7 @@
 #include <eoOp.h>
 #include <eoPopulator.h>
 #include <eoFunctorStore.h>
+#include <assert.h>
 
 /** @name General variation operators
 
diff --git a/eo/src/es/make_genotype_real.h b/eo/src/es/make_genotype_real.h
index bd1fae01..e6d8bdbc 100644
--- a/eo/src/es/make_genotype_real.h
+++ b/eo/src/es/make_genotype_real.h
@@ -28,7 +28,7 @@
 #define _make_genotype_h
 
 #include <es/eoReal.h>
-#include <eoEsChromInit.h>
+#include <es/eoEsChromInit.h>
 #include <utils/eoRealVectorBounds.h>
   // also need the parser and param includes
 #include <utils/eoParser.h>
diff --git a/eo/src/utils/eoParam.h b/eo/src/utils/eoParam.h
index c991b3a7..4ca81fe3 100644
--- a/eo/src/utils/eoParam.h
+++ b/eo/src/utils/eoParam.h
@@ -409,8 +409,8 @@ public:
   while ( (pos=t.find_first_not_of(delim)) < t.size())
     {
       size_t posEnd = t.find_first_of(delim, pos);
-      std::string u(t,pos);
-      u.resize(posEnd-pos);
+      std::string u = t.substr(pos,posEnd);//(t, pos);
+      /*u.resize(posEnd - pos);*/
       second.push_back(u);
       t = t.substr(posEnd);
     }
diff --git a/eo/src/utils/make_help.cpp b/eo/src/utils/make_help.cpp
index d6cd9eab..6924c174 100644
--- a/eo/src/utils/make_help.cpp
+++ b/eo/src/utils/make_help.cpp
@@ -29,9 +29,11 @@
 #endif 
 
 #include <utils/eoParser.h>
-#include <fstream.h>
+#include <fstream>
 #include <stdexcept>
 
+using namespace std;
+
 /** Generation of the status file, and output of the help message if needed
  *
  * MUST be called after ALL parameters have been read in order to list them