diff --git a/calma/CalmaWrite.c b/calma/CalmaWrite.c
index 89d3ca20..f31f3aa7 100644
--- a/calma/CalmaWrite.c
+++ b/calma/CalmaWrite.c
@@ -1601,7 +1601,7 @@ calmaWriteUseFunc(
 		if (whichangle)
 		{
 		    calmaOutRH(12, CALMA_ANGLE, CALMA_R8, f);
-		    calmaOut8(whichangle, f);
+		    calmaOut8((char *)whichangle, f);
 		}
 
 		/* Translation */
@@ -1638,7 +1638,7 @@ calmaWriteUseFunc(
 	if (whichangle)
 	{
 	    calmaOutRH(12, CALMA_ANGLE, CALMA_R8, f);
-	    calmaOut8(whichangle, f);
+	    calmaOut8((char *)whichangle, f);
 	}
 
 	/* If array, number of columns and rows in the array */
diff --git a/calma/CalmaWriteZ.c b/calma/CalmaWriteZ.c
index bfaab61d..38c52f63 100644
--- a/calma/CalmaWriteZ.c
+++ b/calma/CalmaWriteZ.c
@@ -1442,7 +1442,7 @@ calmaWriteUseFuncZ(
 		if (whichangle)
 		{
 		    calmaOutRHZ(12, CALMA_ANGLE, CALMA_R8, f);
-		    calmaOut8Z(whichangle, f);
+		    calmaOut8Z((char *)whichangle, f);
 		}
 
 		/* Translation */
@@ -1479,7 +1479,7 @@ calmaWriteUseFuncZ(
 	if (whichangle)
 	{
 	    calmaOutRHZ(12, CALMA_ANGLE, CALMA_R8, f);
-	    calmaOut8Z(whichangle, f);
+	    calmaOut8Z((char *)whichangle, f);
 	}
 
 	/* If array, number of columns and rows in the array */
diff --git a/cmwind/CMWmain.c b/cmwind/CMWmain.c
index a05d3228..c0e8105b 100644
--- a/cmwind/CMWmain.c
+++ b/cmwind/CMWmain.c
@@ -89,7 +89,7 @@ extern void CMWundoInit(void);
  * which pump is hit and which mouse button is used to hit it.
  */
 
-const ColorBar const colorBars[] =
+const ColorBar colorBars[] =
 {
     {"Red",	CB_RED,		STYLE_RED,	{{ 2000,	8000},	{10000,	 9000}},
 						{{ 2000,	9500},	{10000,	10500}}},
@@ -106,7 +106,7 @@ const ColorBar const colorBars[] =
     {0}
 };
 
-const ColorPump const colorPumps[] =
+const ColorPump colorPumps[] =
 {
     {CB_RED,	-.0078,	{{  500, 8000},	{ 1500,	9000}}},
     {CB_RED,	 .0078,	{{10500, 8000},	{11500,	9000}}},
@@ -155,7 +155,7 @@ CMWcreate(
     char *argv[])
 {
     CMWclientRec *crec;
-    int color;
+    unsigned int color;
 
     crec = (CMWclientRec *) mallocMagic(sizeof(CMWclientRec));
     window->w_clientData = (ClientData) crec;
diff --git a/commands/CmdE.c b/commands/CmdE.c
index 7e9d6a2e..402ebe09 100644
--- a/commands/CmdE.c
+++ b/commands/CmdE.c
@@ -201,7 +201,7 @@ cmdEditRedisplayFunc(
     MagWindow *w,			/* Window containing edit cell. */
     Rect *area)			/* Area to be redisplayed. */
 {
-    static const Rect origin = {-1, -1, 1, 1};
+    static const Rect origin = {{-1, -1}, {1, 1}};
     Rect tmp;
     DBWclientRec *crec = (DBWclientRec *) w->w_clientData;
 
diff --git a/commands/CmdTZ.c b/commands/CmdTZ.c
index b2ff0921..9c2e9407 100644
--- a/commands/CmdTZ.c
+++ b/commands/CmdTZ.c
@@ -216,7 +216,7 @@ CmdTech(
 	    Tcl_SetResult(magicinterp, DBTechName, NULL);
 	    break;
 	case TECH_FILE:
-	    Tcl_SetResult(magicinterp, TechFileName, NULL);
+	    Tcl_SetResult(magicinterp, (char *)TechFileName, NULL);
 	    break;
 	case TECH_VERSION:
 	    Tcl_SetResult(magicinterp, DBTechVersion, NULL);
diff --git a/dbwind/DBWdisplay.c b/dbwind/DBWdisplay.c
index d8047390..54d828f2 100644
--- a/dbwind/DBWdisplay.c
+++ b/dbwind/DBWdisplay.c
@@ -1117,7 +1117,7 @@ dbwTileFunc(tile)
     }
     else
     {
-	(void) sprintf(string, "%p", tile);
+	(void) sprintf(string, "%p", (void *) tile);
     }
 
     GeoClip(&r2, &rootClip);
@@ -1258,7 +1258,7 @@ dbwTileFunc(tile)
 	}
 	else if (!dbwSeeTypes)
 	{
-	    (void) sprintf(string, "%p", stitch);
+	    (void) sprintf(string, "%p", (void *) stitch);
 	    GrPutText(string, STYLE_DRAWTILE, &p, pos,
 		GR_TEXT_SMALL, FALSE, &r2, (Rect *) NULL);
 	}
diff --git a/drc/DRCtech.c b/drc/DRCtech.c
index 1f47b9c1..47cb3794 100644
--- a/drc/DRCtech.c
+++ b/drc/DRCtech.c
@@ -174,7 +174,7 @@ DRCPrintStyle(dolist, doforall, docurrent)
 	    if (!dolist) TxPrintf("The current style is \"");
 #ifdef MAGIC_WRAPPER
 	    if (dolist)
-	        Tcl_SetResult(magicinterp, DRCCurStyle->ds_name, NULL);
+	        Tcl_SetResult(magicinterp, (char *)DRCCurStyle->ds_name, NULL);
 	    else
 #endif
 	    TxPrintf("%s", DRCCurStyle->ds_name);
diff --git a/ext2spice/ext2spice.c b/ext2spice/ext2spice.c
index c2f2bbdb..cc9f573b 100644
--- a/ext2spice/ext2spice.c
+++ b/ext2spice/ext2spice.c
@@ -3810,7 +3810,7 @@ nodeVisitDebug(node, res, cap)
 
     printf("\t client.name=%s, client.m_w=%p\n",
     ((nodeClient *)node->efnode_client)->spiceNodeName,
-    ((nodeClient *)node->efnode_client)->m_w.widths);
+    (void *)((nodeClient *)node->efnode_client)->m_w.widths);
    return 0;
 }
 
diff --git a/extract/ExtTech.c b/extract/ExtTech.c
index 0137f6ac..5071f128 100644
--- a/extract/ExtTech.c
+++ b/extract/ExtTech.c
@@ -693,7 +693,7 @@ ExtPrintStyle(dolist, doforall, docurrent)
 	    if (!dolist) TxPrintf("The current style is \"");
 #ifdef MAGIC_WRAPPER
 	    if (dolist)
-		Tcl_SetResult(magicinterp, ExtCurStyle->exts_name, NULL);
+		Tcl_SetResult(magicinterp, (char *) ExtCurStyle->exts_name, NULL);
 	    else
 #endif
 	    TxPrintf("%s", ExtCurStyle->exts_name);
diff --git a/gcr/gcrDebug.c b/gcr/gcrDebug.c
index 146b2ff9..dbfece8c 100644
--- a/gcr/gcrDebug.c
+++ b/gcr/gcrDebug.c
@@ -288,7 +288,7 @@ gcrSaveChannel(ch)
     char name[128];
     int flags, i, j;
 
-    (void) sprintf(name, "chan.%p", ch);
+    (void) sprintf(name, "chan.%p", (void *) ch);
     fp = fopen(name, "w");
     if (fp == NULL)
     {
diff --git a/gcr/gcrShwFlgs.c b/gcr/gcrShwFlgs.c
index 35fb85c8..2ce84aa8 100644
--- a/gcr/gcrShwFlgs.c
+++ b/gcr/gcrShwFlgs.c
@@ -210,7 +210,7 @@ gcrDumpChannel(ch)
     FILE * fp, * fopen();
 
     netNames[0]=(GCRNet *) 0;
-    (void) snprintf(name, sizeof(name), "channel.%p", ch);
+    (void) snprintf(name, sizeof(name), "channel.%p", (void *) ch);
     if((fp = fopen(name, "w")) == NULL)
     {
 	TxError("Can't open file %s to dump channel.\n", name);
diff --git a/graphics/grDStyle.c b/graphics/grDStyle.c
index 88370f0d..1604838a 100644
--- a/graphics/grDStyle.c
+++ b/graphics/grDStyle.c
@@ -229,8 +229,16 @@ styleBuildDisplayStyle(line, version)
 					 */
 
 	/* Allow colors to be specified by index or by name */
-	if (sscanf(colorName, ((version > 6) ? "%i" : "%o"), &color) <= 0)
-	    color = GrNameToColor(colorName);
+	if (version > 6)
+	{
+	    if (sscanf(colorName, "%i", &color) <= 0)
+		color = GrNameToColor(colorName);
+	}
+	else
+	{
+	    if (sscanf(colorName, "%o", (unsigned int *)&color) <= 0)
+		color = GrNameToColor(colorName);
+	}
 
 	newstyle->style.mask = (mask & grBitPlaneMask);
 	newstyle->style.color = (color & grBitPlaneMask);
diff --git a/grouter/grouteChan.c b/grouter/grouteChan.c
index e2c32cab..bb801c56 100644
--- a/grouter/grouteChan.c
+++ b/grouter/grouteChan.c
@@ -364,7 +364,7 @@ glChanCheckFunc(tile, ch)
 	{
 	    TITORECT(tile, &r);
 	    (void) sprintf(mesg, "Tile client 0x%"DLONG_PREFIX"x doesn't match chan %p",
-		    (dlong) tile->ti_client, ch);
+		    (dlong) tile->ti_client, (void *) ch);
 	    DBWFeedbackAdd(&r, mesg, EditCellUse->cu_def,
 		    1, STYLE_MEDIUMHIGHLIGHTS);
 	}
@@ -421,7 +421,7 @@ glChanClip(ch)
     {
 	char mesg[256];
 
-	(void) sprintf(mesg, "After clipping chan %p", ch);
+	(void) sprintf(mesg, "After clipping chan %p", (void *) ch);
 	glChanShowTiles(mesg);
     }
 
@@ -471,7 +471,7 @@ glChanShowFunc(tile)
 	return 0;
     ch = (GCRChannel *) tile->ti_client;
     ShowRect(EditCellUse->cu_def, &ch->gcr_area, STYLE_MEDIUMHIGHLIGHTS);
-    (void) sprintf(mesg, "chan %p type=%d", ch, ch->gcr_type);
+    (void) sprintf(mesg, "chan %p type=%d", (void *) ch, ch->gcr_type);
     TxMore(mesg);
     ShowRect(EditCellUse->cu_def, &ch->gcr_area, STYLE_ERASEHIGHLIGHTS);
     return 0;
diff --git a/mzrouter/mzEstimate.c b/mzrouter/mzEstimate.c
index d32e8fd7..afb41115 100644
--- a/mzrouter/mzEstimate.c
+++ b/mzrouter/mzEstimate.c
@@ -1978,7 +1978,7 @@ mzDumpEstFunc(tile, fd)
     if(fd)
     {
 	fprintf(fd,"\ntile %p\t\t  (x: %d to %d, y: %d to %d)\n",
-		tile, r.r_xbot, r.r_xtop, r.r_ybot, r.r_ytop);
+		(void *) tile, r.r_xbot, r.r_xtop, r.r_ybot, r.r_ytop);
 	fprintf(fd,"\thcost = %d ",
 		tilec->tc_hCost);
 	fprintf(fd,"vcost = %d \n",
diff --git a/plot/plotVers.c b/plot/plotVers.c
index 5f37573f..fc44fa77 100644
--- a/plot/plotVers.c
+++ b/plot/plotVers.c
@@ -342,7 +342,8 @@ PlotVersTechLine(sectionName, argc, argv)
     }
     else
     {
-	int i, value;
+	unsigned int value;
+	int i;
 
 	if (argc != 17)
 	{
@@ -440,7 +441,8 @@ PlotColorVersTechLine(sectionName, argc, argv)
     }
     else
     {
-	int i, j, value;
+	unsigned int value;
+	int i, j;
 
 	if (argc != 3 && argc != 4 && argc != 6 && argc != 10 && argc != 18)
 	{
diff --git a/resis/ResDebug.c b/resis/ResDebug.c
index be4775a9..6358afc3 100644
--- a/resis/ResDebug.c
+++ b/resis/ResDebug.c
@@ -54,7 +54,7 @@ ResPrintNodeList(fp, list)
     for (; list != NULL; list = list->rn_more)
     {
 	fprintf(fp, "node %p: (%d %d) r= %d\n",
-	  	list, list->rn_loc.p_x, list->rn_loc.p_y, list->rn_noderes);
+	    (void *) list, list->rn_loc.p_x, list->rn_loc.p_y, list->rn_noderes);
     }
 }
 
diff --git a/router/rtrFdback.c b/router/rtrFdback.c
index 23be3da4..a9a2040b 100644
--- a/router/rtrFdback.c
+++ b/router/rtrFdback.c
@@ -99,11 +99,11 @@ RtrChannelError(ch, col, track, msg, net)
 	netname = NLNetName(net);
 	if ((strlen(netname) + strlen(msg)) >= 2048)
 	    netname = "too long";
-	(void) sprintf(buff, "Net `%s', channel %p:  ", netname, ch);
+	(void) sprintf(buff, "Net `%s', channel %p:  ", netname, (void *) ch);
     }
     else
     {
-	(void) sprintf(buff, "channel %p: ", ch);
+	(void) sprintf(buff, "channel %p: ", (void *) ch);
     }
     (void) strcat(buff, msg);
     old.p_x = col;
diff --git a/router/rtrPin.c b/router/rtrPin.c
index 3fa77eb8..aa7bec1e 100644
--- a/router/rtrPin.c
+++ b/router/rtrPin.c
@@ -431,7 +431,7 @@ void rtrPinShow(pin)
 		pin->gcr_ch->gcr_type,
 		pin->gcr_x, pin->gcr_y,
 		pin->gcr_point.p_x, pin->gcr_point.p_y,
-		(dlong) pin->gcr_pId, pin->gcr_linked);
+		(dlong) pin->gcr_pId, (void *) pin->gcr_linked);
     if (pin->gcr_pId || pin->gcr_linked == NULL)
 	(void) strcat(mesg, " **BLOCKED**");
     else DBWFeedbackAdd(&r, mesg, EditCellUse->cu_def, 1, STYLE_PALEHIGHLIGHTS);
diff --git a/tiles/tile.c b/tiles/tile.c
index a0dae3c3..e7190783 100644
--- a/tiles/tile.c
+++ b/tiles/tile.c
@@ -815,8 +815,9 @@ tiPrint(tp)
     Tile *tp;
 {
     printf("tp=%p LL=(%d,%d) body=0x%"DLONG_PREFIX"x\n",
-	tp, LEFT(tp), BOTTOM(tp), (dlong) tp->ti_body);
-    printf("BL=%p LB=%p RT=%p TR=%p\n", BL(tp), LB(tp), RT(tp), TR(tp));
+	(void *) tp, LEFT(tp), BOTTOM(tp), (dlong) tp->ti_body);
+    printf("BL=%p LB=%p RT=%p TR=%p\n",
+        (void *) BL(tp), (void *) LB(tp), (void *) RT(tp), (void *) TR(tp));
 }
 
 void
diff --git a/utils/netlist.c b/utils/netlist.c
index af01e081..b835732f 100644
--- a/utils/netlist.c
+++ b/utils/netlist.c
@@ -393,7 +393,7 @@ NLNetName(net)
     term = net->nnet_terms;
     if (term == NULL || term->nterm_name == NULL)
     {
-	(void) sprintf(tempId, "[%p]", net);
+	(void) sprintf(tempId, "[%p]", (void *) net);
 	return tempId;
     }