diff --git a/src/FDM/IO360.cxx b/src/FDM/IO360.cxx
index a9b5540db..84120252d 100644
--- a/src/FDM/IO360.cxx
+++ b/src/FDM/IO360.cxx
@@ -668,7 +668,7 @@ void FGNewEngine::Do_Prop_Calcs()
     //cout << "RPM = " << RPM << '\n';
     //cout << "angular_velocity_SI = " << angular_velocity_SI << '\n';
     
-    prop_power_consumed_SI = Cp * rho_air * pow(FGProp1_RPS,3.0) * pow(prop_diameter,5.0);
+    prop_power_consumed_SI = Cp * rho_air * pow(FGProp1_RPS,3.0f) * pow(float(prop_diameter),5.0f);
     //cout << "prop HP consumed = " << prop_power_consumed_SI / 745.699 << '\n';
     if(angular_velocity_SI == 0)
         prop_torque = 0;
diff --git a/src/FDM/JSBSim/FGTable.cpp b/src/FDM/JSBSim/FGTable.cpp
index 103e7e0f0..48c4877b1 100644
--- a/src/FDM/JSBSim/FGTable.cpp
+++ b/src/FDM/JSBSim/FGTable.cpp
@@ -225,7 +225,7 @@ void FGTable::Print(void)
     }
     cout << endl;
   }
-  cout.setf(0, ios::floatfield); // reset
+  cout.setf((ios_base::fmtflags)0, ios::floatfield); // reset
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/src/FDM/UIUCModel/uiuc_aircraft.h b/src/FDM/UIUCModel/uiuc_aircraft.h
index 6d407f8a3..ff22a2b8d 100644
--- a/src/FDM/UIUCModel/uiuc_aircraft.h
+++ b/src/FDM/UIUCModel/uiuc_aircraft.h
@@ -125,9 +125,7 @@ SG_USING_STD(map);
 #if !defined (SG_HAVE_NATIVE_SGI_COMPILERS)
 SG_USING_STD(iostream);
 #endif
-#if defined ( macintosh ) || defined ( _MSC_VER )
 SG_USING_STD(ofstream);
-#endif
 
 
 typedef stack :: iterator LIST;
diff --git a/src/Objects/obj.cxx b/src/Objects/obj.cxx
index 166111169..4fb53463c 100644
--- a/src/Objects/obj.cxx
+++ b/src/Objects/obj.cxx
@@ -381,11 +381,7 @@ ssgBranch *fgAsciiObjLoad( const string& path, FGTileEntry *t,
     while ( ! in.eof() ) {
 #endif
 
-#if defined( macintosh ) || defined( _MSC_VER )
 	in >> ::skipws;
-#else
-	in >> skipws;
-#endif
 
 	if ( in.get( c ) && c == '#' ) {
 	    // process a comment line
@@ -628,11 +624,7 @@ ssgBranch *fgAsciiObjLoad( const string& path, FGTileEntry *t,
 		
 		// read all subsequent numbers until next thing isn't a number
 		while ( true ) {
-#if defined( macintosh ) || defined( _MSC_VER )
 		    in >> ::skipws;
-#else
-		    in >> skipws;
-#endif
 
 		    char c;
 		    in.get(c);
@@ -740,11 +732,7 @@ ssgBranch *fgAsciiObjLoad( const string& path, FGTileEntry *t,
 
 	    // eat white space before start of while loop so if we are
 	    // done with useful input it is noticed before hand.
-#if defined( macintosh ) || defined( _MSC_VER )
 	    in >> ::skipws;
-#else
-	    in >> skipws;
-#endif
 	}
     }