diff --git a/src/lib/commands/rea.c b/src/lib/commands/rea.c
index be4ddc6e..5e4063a9 100644
--- a/src/lib/commands/rea.c
+++ b/src/lib/commands/rea.c
@@ -64,7 +64,7 @@ rea(void)
     FILE *telfp;
     int teles;
     int size;
-    unsigned int nbytes;
+    unsigned nbytes;
     char buf[1024];
     char msgbuf[4096];		/* UTF-8 */
     int lasttype;
diff --git a/src/lib/commands/retr.c b/src/lib/commands/retr.c
index 83d1029c..d5f1d006 100644
--- a/src/lib/commands/retr.c
+++ b/src/lib/commands/retr.c
@@ -54,7 +54,7 @@ retr(void)
     int isfleet = 0;
     int rflags = -2;
     int zero;
-    unsigned int x;
+    unsigned x;
     char buf1[1024];
     char buf2[1024];
 
@@ -204,7 +204,7 @@ lretr(void)
     int zero;
     char buf1[1024];
     char buf2[1024];
-    unsigned int x;
+    unsigned x;
 
     if (!snxtitem(&ni, EF_LAND, player->argp[1]))
 	return RET_SYN;
diff --git a/src/lib/common/bestpath.c b/src/lib/common/bestpath.c
index 20fbc578..0fc2fafb 100644
--- a/src/lib/common/bestpath.c
+++ b/src/lib/common/bestpath.c
@@ -70,8 +70,8 @@ int dy[6] = { 0, -1, -1, 0, 1, 1 };
  * would be slow.  And, since world size only changes at init
  * time, we can do this safely.
  */
-static unsigned int *mapbuf;
-static unsigned int **mapindex;
+static unsigned *mapbuf;
+static unsigned **mapindex;
 
 /*
  * Find passable path from X, Y to EX, EY for nation OWN.
@@ -90,14 +90,14 @@ bestownedpath(char *bpath, char *bigmap,
 {
     int i, j, tx, ty, markedsectors;
     int minx, maxx, miny, maxy, scanx, scany;
-    unsigned int routelen;
+    unsigned routelen;
 
     if (!mapbuf)
-	mapbuf = malloc(WORLD_X * WORLD_Y * sizeof(unsigned int));
+	mapbuf = malloc(WORLD_X * WORLD_Y * sizeof(unsigned));
     if (!mapbuf)
 	return NULL;
     if (!mapindex) {
-	mapindex = malloc(WORLD_X * sizeof(unsigned int *));
+	mapindex = malloc(WORLD_X * sizeof(unsigned *));
 	if (mapindex) {
 	    /* Setup the map pointers */
 	    for (i = 0; i < WORLD_X; i++)
diff --git a/src/lib/empthread/ntthread.c b/src/lib/empthread/ntthread.c
index 48e433b5..5a6a738b 100644
--- a/src/lib/empthread/ntthread.c
+++ b/src/lib/empthread/ntthread.c
@@ -332,7 +332,7 @@ empth_threadMain(void *pvData)
 
     /* seed the rand() function */
     time(&now);
-    srand(now ^ (unsigned int)pThread);
+    srand(now ^ (unsigned)pThread);
 
     /* Switch to this thread context */
     loc_RunThisThread();
diff --git a/src/lib/player/player.c b/src/lib/player/player.c
index 21292269..032f35b6 100644
--- a/src/lib/player/player.c
+++ b/src/lib/player/player.c
@@ -142,7 +142,7 @@ player_main(struct player *p)
 int
 command(void)
 {
-    unsigned int i;
+    unsigned i;
     char *redir;		/* UTF-8 */
     char scanspace[1024];
 
@@ -152,10 +152,6 @@ command(void)
 	      scanspace, &redir) < 0) {
 	pr("See \"info Syntax\"?\n");
     } else {
-	/* XXX don't use alarm; use a scavenger thread */
-	/* DONT USE IT!!!! alarm and sleep may and dont work
-	   together -- Sasha */
-	/* alarm((unsigned int)60*60); 1 hour */
 	if (player->condarg != NULL)
 	    for (i = 0; i < strlen(player->condarg); i++)
 		player->condarg[i] = tolower(player->condarg[i]);
diff --git a/src/lib/subs/mission.c b/src/lib/subs/mission.c
index 2f68323b..6506541a 100644
--- a/src/lib/subs/mission.c
+++ b/src/lib/subs/mission.c
@@ -978,7 +978,7 @@ mission_pln_sel(struct emp_qelem *list, int wantflags, int nowantflags,
     struct plchrstr *pcp;
     struct plist *plp;
     int y, bad, bad1;
-    unsigned int x;
+    unsigned x;
 
     for (qp = list->q_forw; qp != list; qp = next) {
 	next = qp->q_forw;
diff --git a/src/lib/subs/plnsub.c b/src/lib/subs/plnsub.c
index 1f68ac78..eab65fca 100644
--- a/src/lib/subs/plnsub.c
+++ b/src/lib/subs/plnsub.c
@@ -384,7 +384,7 @@ pln_sel(struct nstr_item *ni, struct emp_qelem *list, struct sctstr *ap,
     struct plist *plp;
     int y;
     int bad, bad1;
-    unsigned int x;
+    unsigned x;
 
     emp_initque(list);
     while (nxtitem(ni, &plane)) {
diff --git a/src/lib/update/sail.c b/src/lib/update/sail.c
index 64e50e61..4c24f5d2 100644
--- a/src/lib/update/sail.c
+++ b/src/lib/update/sail.c
@@ -82,7 +82,7 @@ and therefore cannot be less than 0.
        "Ship #%d can move %d spaces on mobility %d (cost/sect %f)\n",
        sp->shp_uid, howfar, sp->shp_mobil, mobcost);
 #endif
-    if ((unsigned int)howfar < fp->maxmoves)
+    if ((unsigned)howfar < fp->maxmoves)
 	fp->maxmoves = howfar;
 
     ep->mobil = sp->shp_mobil;