Added include guards to all class headers.

Removed unnecessary or potentially harmful compiler flags. 
Added alignment attribute to all old struct members. 
Removed some unused variables. 
Made some switch statements handle all or more cases. 
Removed using declarations in favor of fully qualified names. 
Fixed a couple of assignments in conditionals that should have been comparisons. 
Eliminated linker warnings by restoring default linking of standard libraries. 
Fixed some comparisons between signed and unsigned integers. 

Note: No testing has been done, in particular of old file I/O. This should be checked for regression caused by alteration of old struct definitions. 


git-svn-id: http://openexile.googlecode.com/svn/trunk@63 4ebdad44-0ea0-11de-aab3-ff745001d230

osx/classes/location.h

@@ -6,7 +6,8 @@
  *
  */
 
-#pragma once
+#ifndef LOCATION_H
+#define LOCATION_H
 
 struct rectangle;
 
@@ -43,3 +44,5 @@ location loc();
 rectangle rect();
 rectangle rect(location tl, location br);
 rectangle rect(char top, char left, char bottom, char right);
+
+#endif