Index: trunk/src_plugins/vendordrill/vendor.c
===================================================================
--- trunk/src_plugins/vendordrill/vendor.c	(revision 34029)
+++ trunk/src_plugins/vendordrill/vendor.c	(revision 34030)
@@ -89,10 +89,14 @@
 
 
 /* type of drill mapping */
-#define CLOSEST 1
-#define ROUND_UP 0
-static int rounding_method = ROUND_UP;
+typedef enum {
+	ROUND_UP = 0,
+	ROUND_CLOSEST,
+	ROUND_DOWN
+} vendor_round_t;
 
+static vendor_round_t rounding_method = ROUND_UP;
+
 #define FREE(x) if((x) != NULL) { free (x) ; (x) = NULL; }
 
 /* load a board metadata into conf_core */
@@ -206,7 +210,7 @@
 			rounding_method = ROUND_UP;
 		}
 		else if (RND_NSTRCMP(sval, "nearest") == 0) {
-			rounding_method = CLOSEST;
+			rounding_method = ROUND_CLOSEST;
 		}
 		else {
 			rnd_message(RND_MSG_ERROR, "\"%s\" is not a valid rounding type.  Defaulting to up\n", sval);
@@ -427,7 +431,7 @@
 	i = max;
 
 	/* now round per the rounding mode */
-	if (rounding_method == CLOSEST) {
+	if (rounding_method == ROUND_CLOSEST) {
 		/* find the closest drill size */
 		if ((in - vendor_drills[i - 1]) > (vendor_drills[i] - in)) {
 			cached_map = vendor_drills[i];