Fix all compiler warnings from various build systems.

Fix vsnprintf() implementation to properly handle long and long long ints.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5845 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

test/fullscreen.cxx

@@ -91,8 +91,8 @@ void shape_window::draw() {
   glClear(GL_COLOR_BUFFER_BIT);
   glColor3f(.5,.6,.7);
   glBegin(GL_POLYGON);
-  for (int i=0; i<sides; i++) {
-    double ang = i*2*M_PI/sides;
+  for (int j = 0; j < sides; j ++) {
+    double ang = j*2*M_PI/sides;
     glVertex3f(cos(ang),sin(ang),0);
   }
   glEnd();