Index: change.h
===================================================================
--- change.h	(revision 5026)
+++ change.h	(revision 5027)
@@ -34,36 +34,36 @@
 /* ---------------------------------------------------------------------------
  * some defines
  */
-#define	CHANGENAME_TYPES        \
+#define	PCB_CHANGENAME_TYPES        \
 	(PCB_TYPE_VIA | PCB_TYPE_PIN | PCB_TYPE_PAD | PCB_TYPE_TEXT | PCB_TYPE_ELEMENT | PCB_TYPE_ELEMENT_NAME | PCB_TYPE_LINE)
 
-#define	CHANGESIZE_TYPES        \
+#define	PCB_CHANGESIZE_TYPES        \
 	(PCB_TYPE_POLYGON | PCB_TYPE_VIA | PCB_TYPE_PIN | PCB_TYPE_PAD | PCB_TYPE_LINE | \
 	 PCB_TYPE_ARC | PCB_TYPE_TEXT | PCB_TYPE_ELEMENT_NAME | PCB_TYPE_ELEMENT)
 
-#define	CHANGE2NDSIZE_TYPES     \
+#define	PCB_CHANGE2NDSIZE_TYPES     \
 	(PCB_TYPE_VIA | PCB_TYPE_PIN | PCB_TYPE_ELEMENT)
 
 /* We include polygons here only to inform the user not to do it that way.  */
-#define CHANGECLEARSIZE_TYPES	\
+#define PCB_CHANGECLEARSIZE_TYPES	\
 	(PCB_TYPE_PIN | PCB_TYPE_PAD | PCB_TYPE_VIA | PCB_TYPE_LINE | PCB_TYPE_ARC | PCB_TYPE_POLYGON)
 
-#define	CHANGENONETLIST_TYPES     \
+#define	PCB_CHANGENONETLIST_TYPES     \
 	(PCB_TYPE_ELEMENT)
 
-#define	CHANGESQUARE_TYPES     \
+#define	PCB_CHANGESQUARE_TYPES     \
 	(PCB_TYPE_ELEMENT | PCB_TYPE_PIN | PCB_TYPE_PAD | PCB_TYPE_VIA)
 
-#define	CHANGEOCTAGON_TYPES     \
+#define	PCB_CHANGEOCTAGON_TYPES     \
 	(PCB_TYPE_ELEMENT | PCB_TYPE_PIN | PCB_TYPE_VIA)
 
-#define CHANGEJOIN_TYPES	\
+#define PCB_CHANGEJOIN_TYPES	\
 	(PCB_TYPE_ARC | PCB_TYPE_LINE | PCB_TYPE_TEXT)
 
-#define CHANGETHERMAL_TYPES	\
+#define PCB_CHANGETHERMAL_TYPES	\
 	(PCB_TYPE_PIN | PCB_TYPE_VIA)
 
-#define CHANGEMASKSIZE_TYPES    \
+#define PCB_CHANGEMASKSIZE_TYPES    \
         (PCB_TYPE_PIN | PCB_TYPE_VIA | PCB_TYPE_PAD)
 
 pcb_bool pcb_chg_selected_size(int, pcb_coord_t, pcb_bool);