diff --git a/src/Fl_Input_.cxx b/src/Fl_Input_.cxx
index e1d84fcf9..a7f6a9196 100644
--- a/src/Fl_Input_.cxx
+++ b/src/Fl_Input_.cxx
@@ -346,9 +346,9 @@ void Fl_Input_::drawtext(int X, int Y, int W, int H) {
       }
       fl_draw(buf+offset1, offset2-offset1, x1, (float)(Y+ypos+desc));
       if (Fl::screen_driver()->has_marked_text() && Fl::compose_state) {
-        fl_color( fl_color_average(textcolor(), color(), 0.6) );
-        float width = fl_width(buf+offset1, offset2-offset1);
-        fl_line(x1, Y+ypos+height-1, x1+width, Y+ypos+height-1);
+        fl_color( fl_color_average(textcolor(), color(), 0.6f) );
+        float width = (float)fl_width(buf+offset1, offset2-offset1);
+        fl_line((int)x1, Y+ypos+height-1, (int)(x1+width), Y+ypos+height-1);
       }
       if (pp < e) {
 	fl_color(tc);
@@ -378,7 +378,7 @@ void Fl_Input_::drawtext(int X, int Y, int W, int H) {
       } else {
         fl_rectf((int)(xpos+curx+0.5), Y+ypos, 2, height);
       }
-      Fl::insertion_point_location(xpos+curx, Y+ypos+height, height);
+      Fl::insertion_point_location((int)xpos+curx, Y+ypos+height, height);
     }
 
   CONTINUE:
diff --git a/src/Fl_Text_Display.cxx b/src/Fl_Text_Display.cxx
index 9588e2beb..4d2b8bdd8 100644
--- a/src/Fl_Text_Display.cxx
+++ b/src/Fl_Text_Display.cxx
@@ -2206,8 +2206,8 @@ void Fl_Text_Display::draw_string(int style,
     if (can_leak) fl_push_clip(X, Y, toX - X, mMaxsize);
     fl_draw( string, nChars, X, Y + mMaxsize - fl_descent());
     if (Fl::screen_driver()->has_marked_text() && Fl::compose_state && (style & PRIMARY_MASK)) {
-      fl_color( fl_color_average(foreground, background, 0.6) );
-      fl_line(X, Y + mMaxsize - 1, X + fl_width(string, nChars), Y + mMaxsize - 1);
+      fl_color( fl_color_average(foreground, background, 0.6f) );
+      fl_line(X, Y + mMaxsize - 1, X + (int)fl_width(string, nChars), Y + mMaxsize - 1);
     }
     if (can_leak) fl_pop_clip();
   }
diff --git a/src/drivers/WinAPI/Fl_WinAPI_Printer_Driver.cxx b/src/drivers/WinAPI/Fl_WinAPI_Printer_Driver.cxx
index ded681695..03e94bee2 100644
--- a/src/drivers/WinAPI/Fl_WinAPI_Printer_Driver.cxx
+++ b/src/drivers/WinAPI/Fl_WinAPI_Printer_Driver.cxx
@@ -256,8 +256,8 @@ void Fl_WinAPI_Printer_Driver::rotate (float rot_angle)
   XFORM mat;
   float angle;
   angle = (float) - (rot_angle * M_PI / 180.);
-  mat.eM11 = cos(angle);
-  mat.eM12 = sin(angle);
+  mat.eM11 = (float)cos(angle);
+  mat.eM12 = (float)sin(angle);
   mat.eM21 = - mat.eM12;
   mat.eM22 = mat.eM11;
   mat.eDx = mat.eDy = 0;