diff --git a/lef/defRead.c b/lef/defRead.c
index 3629aaac..16265a92 100644
--- a/lef/defRead.c
+++ b/lef/defRead.c
@@ -1444,7 +1444,7 @@ DefReadPins(
 {
     char *token;
     char pinname[LEF_LINE_MAX];
-    int keyword, subkey, values, flags;
+    int keyword, subkey, flags;
     int processed = 0;
     int pinDir = PORT_CLASS_DEFAULT;
     int pinUse = PORT_USE_DEFAULT;
@@ -1454,7 +1454,6 @@ DefReadPins(
     LinkedRect *rectList = NULL, *newRect;
     Rect *currect, topRect;
     Transform t;
-    lefLayer *lefl;
     bool pending = FALSE;
     bool hasports = FALSE;
 
@@ -1772,12 +1771,10 @@ DefReadBlockages(
     int total)
 {
     char *token;
-    int keyword, subkey, values;
+    int keyword, subkey;
     int processed = 0;
     TileType curlayer;
     Rect *currect;
-    lefLayer *lefl;
-    HashEntry *he;
 
     static const char * const block_keys[] = {
 	"-",
@@ -1890,10 +1887,9 @@ DefReadVias(
 {
     char *token;
     char vianame[LEF_LINE_MAX];
-    int keyword, subkey, values;
+    int keyword, subkey;
     int processed = 0;
     TileType curlayer;
-    Rect *currect;
     lefLayer *lefl;
     HashEntry *he;
 
@@ -2177,7 +2173,7 @@ DefReadComponents(
     Transform t;
     char *token, *dptr;
     char usename[512];
-    int keyword, subkey, values;
+    int keyword, subkey;
     int processed = 0;
 
     static const char * const component_keys[] = {
diff --git a/lef/defWrite.c b/lef/defWrite.c
index 7cdf7a26..e3309287 100644
--- a/lef/defWrite.c
+++ b/lef/defWrite.c
@@ -107,7 +107,6 @@ defWriteHeader(
     float oscale,
     int units)		/* Units for UNITS; could be derived from oscale */
 {
-    TileType type;
     char *propvalue;
     bool propfound;
 
@@ -294,7 +293,6 @@ defnodeCount(
     NetCount *total)
 {
     HierName *hierName;
-    char ndn[256];
     char *cp, clast;
 
     /* Ignore the substrate node if it is not connected to any routing */
@@ -530,7 +528,6 @@ defWriteRouteWidth(
     DefData *defdata,
     int width)
 {
-    float oscale = defdata->scale;
     char numstr[32];
     sprintf(numstr, "%.10g", ((float)width * defdata->scale));
     defCheckForBreak(strlen(numstr) + 1, defdata);
@@ -666,10 +663,8 @@ defnodeVisit(
     char locndn[256];
     FILE *f = defdata->f;
     CellDef *def = defdata->def;
-    float oscale = defdata->scale;
     TileTypeBitMask tmask, *rmask;
-    TileType nodetype, magictype;
-    Rect *nodeloc;
+    TileType magictype;
     LinkedRect *lr;
     EFNodeName *thisnn;
     int defNetGeometryFunc(Tile *tile, int plane, DefData *defdata);		/* Forward declaration */
@@ -1168,7 +1163,6 @@ defNetGeometryFunc(
 		int ndv = (h > w) ? w : h;
 		char ndname[100];
 		LefRules *ruleset;
-		lefRule *rule;
 
 		/*
 	    	TxPrintf("Net at (%d, %d) has width %d, default width is %d\n",
@@ -1718,7 +1712,7 @@ defCountViaFunc(
     TileType ttype = TiGetType(tile), ctype, rtype;
     TileTypeBitMask *rmask, *rmask2;
     Tile *tp;
-    char *lname, vname[100], *vp, posstr[24];
+    char *lname, vname[100], posstr[24];
     Rect r, r2, rorig;
     int w, h, offx, offy, sdist, lorient, horient;
     int ldist, hdist, sldist, shdist, pNum;
@@ -2760,8 +2754,7 @@ arrayDefFunc(
     int sx = use->cu_xhi - use->cu_xlo;
     int sy = use->cu_yhi - use->cu_ylo;
     char idx[32];
-    Rect box, rect, *r, bbrect, defrect;
-    int xoff, yoff;
+    Rect box, rect, *r;
 
     idx[0] = 0;
 
@@ -2770,7 +2763,6 @@ arrayDefFunc(
 
     r = &use->cu_def->cd_bbox;
 
-    xoff = yoff = 0;
     if (use->cu_def->cd_flags & CDFIXEDBBOX)
     {
 	char *propval;
@@ -2954,8 +2946,6 @@ DefWriteCell(
     HashTable defViaTable;
 
     LefMapping *lefMagicToLefLayer;
-    int i;
-    lefLayer *lefl;
     HashEntry *he;
     HashSearch hs;
 
diff --git a/lef/lefRead.c b/lef/lefRead.c
index 3fd73279..edc44966 100644
--- a/lef/lefRead.c
+++ b/lef/lefRead.c
@@ -87,9 +87,7 @@ LefEstimate(
    int total,
    const char *item_name)
 {
-    static int check_interval, partition;
     static struct timeval tv_start;
-    static float last_time;
     struct timeval tv;
     struct timezone tz;
     float cur_time, time_left;
@@ -463,7 +461,7 @@ LefParseEndStatement(
     const char *match)
 {
     char *token;
-    int keyword, words;
+    int keyword;
     const char * match_name[2];
 
     static const char * const end_section[] = {
@@ -2496,7 +2494,7 @@ LefGenViaGeometry(
     float oscale)		/* output scaling	*/
 {
     Rect rect;
-    int i, j, x, y, w, h, sw, sh;
+    int i, j, x, y, w, h;
     LinkedRect *viaLR;
     float hscale = oscale / 2;
 
@@ -2662,7 +2660,6 @@ LefReadLayerSection(
 {
     char *token;
     int keyword, typekey;
-    Rect viaArea;
     TileType curlayer = -1;
     float fvalue, oscale;
 
@@ -2719,7 +2716,6 @@ LefReadLayerSection(
     };
 
     oscale = CIFGetOutputScale(1000);
-    viaArea = GeoNullRect;
 
     while ((token = LefNextToken(f, TRUE)) != NULL)
     {
diff --git a/lef/lefWrite.c b/lef/lefWrite.c
index 0421e10d..557a3fc8 100644
--- a/lef/lefWrite.c
+++ b/lef/lefWrite.c
@@ -257,7 +257,6 @@ lefWriteHeader(
     HashTable *propTable,   /* Hash table of property definitions */
     HashTable *siteTable)   /* Hash table of sites used */
 {
-    TileType type;
     HashSearch hs;
     HashEntry *he;
     int nprops;
@@ -732,10 +731,9 @@ lefYankContacts(
 {
     lefClient *lefdata = (lefClient *)cdata;
     Rect area;
-    TileType ttype, ptype, stype;
+    TileType ttype, stype;
     LefMapping *lefMagicToLefLayer;
-    TileTypeBitMask sMask, *lrmask;
-    bool iscut;
+    TileTypeBitMask *lrmask;
 
     /* Ignore marked tiles */
     if (tile->ti_client != (ClientData)CLIENTDEFAULT) return 0;