-Wall fixes.

games/cribbage/crib.c

@@ -179,7 +179,6 @@ makeboard()
 void
 gamescore()
 {
-	extern int Lastscore[];
 
 	if (pgames || cgames) {
 		mvprintw(SCORE_Y + 1, SCORE_X + 28, "Games: %3d", pgames);
@@ -201,6 +200,7 @@ game()
 	BOOLEAN flag;
 	BOOLEAN compcrib;
 
+	compcrib = FALSE;
 	makedeck(deck);
 	shuffle(deck);
 	if (gamecount == 0) {
@@ -458,7 +458,7 @@ peg(mycrib)
 	}
 	Tcnt = 0;		/* index to table of cards played */
 	sum = 0;		/* sum of cards played */
-	mego = ugo = FALSE;
+	played = mego = ugo = FALSE;
 	myturn = !mycrib;
 	for (;;) {
 		last = TRUE;	/* enable last flag */

games/cribbage/instr.c

@@ -57,7 +57,6 @@ static const char rcsid[] =
 void
 instructions()
 {
-	extern int errno;
 	struct stat sb;
 	union wait pstat;
 	pid_t pid;
@@ -75,7 +74,7 @@ instructions()
 	case 0:
 		if (!(path = getenv("PAGER")))
 			path = _PATH_MORE;
-		if (pager = rindex(path, '/'))
+		if ((pager = rindex(path, '/')) != NULL)
 			++pager;
 		pager = path;
 		execlp(path, pager, _PATH_INSTR, (char *)NULL);

games/cribbage/support.c

@@ -188,8 +188,8 @@ chkscr(scr, inc)
 
 	myturn = (scr == &cscore);
 	if (inc != 0) {
-		prpeg(Lastscore[myturn], '.', myturn);
-		Lastscore[myturn] = *scr;
+		prpeg(Lastscore[myturn ? 1 : 0], '.', myturn);
+		Lastscore[myturn ? 1 : 0] = *scr;
 		*scr += inc;
 		prpeg(*scr, PEG, myturn);
 		refresh();

games/grdc/grdc.c

@@ -40,6 +40,7 @@ int hascolor = 0;
 void set(int, int);
 void standt(int);
 void movto(int, int);
+void sighndl(int);
 
 void sighndl(signo)
 int signo;