Squasgh -Wextra warnings.

Makefile

@@ -22,7 +22,7 @@
 VERS=1.0
 
 CC?=gcc
-CCFLAGS+=-std=c99 -D _DEFAULT_SOURCE -Wall -Wpedantic -g
+CCFLAGS+=-std=c99 -D _DEFAULT_SOURCE -Wall -Wpedantic -Wextra -g
 LIBS=
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Linux)

actions.c

@@ -614,7 +614,7 @@ static int fly(token_t verb, token_t obj)
     return GO_TERMINATE;
 }
 
-static int inven(token_t obj)
+static int inven(void)
 /* Inventory. If object, treat same as find.  Else report on current burden. */
 {
     int spk=NO_CARRY;
@@ -1087,7 +1087,7 @@ int action(FILE *input, enum speechpart part, long verb, token_t obj)
 		    case 16: /* TOSS  */ return GO_UNKNOWN; 
 		    case 17: /* QUIT  */ return quit(input);   
 		    case 18: /* FIND  */ return GO_UNKNOWN; 
-		    case 19: /* INVEN */ return inven(obj);   
+		    case 19: /* INVEN */ return inven();
 		    case 20: /* FEED  */ return GO_UNKNOWN; 
 		    case 21: /* FILL  */ return fill(verb, obj);   
 		    case 22: /* BLAST */ return blast();   

misc.c

@@ -67,7 +67,7 @@ void newspeak(char* msg)
  
   // Handle format specifiers (including the custom %C, %L, %S) by adjusting the parameter accordingly, and replacing the specifier with %s.
   int pi = 0; // parameter index
-  for (int i = 0; i < strlen(msg); ++i)
+  for (int i = 0; i < (int)strlen(msg); ++i)
     {
       if (msg[i] == '%')
   	{
@@ -105,7 +105,7 @@ void newspeak(char* msg)
 	    {
 	      copy[i + 1] = 's';
 	      packed_to_token(PARMS[pi], parameters[pi]);
-	      for (int j = 0; j < strlen(parameters[pi]); ++j)
+	      for (int j = 0; j < (int)strlen(parameters[pi]); ++j)
 		{
 		  parameters[pi][j] = tolower(parameters[pi][j]);
 		}
@@ -116,7 +116,7 @@ void newspeak(char* msg)
 	    {
 	      copy[i + 1] = 's';
 	      packed_to_token(PARMS[pi], parameters[pi]);
-	      for (int j = 0; j < strlen(parameters[pi]); ++j)
+	      for (int j = 0; j < (int)strlen(parameters[pi]); ++j)
 		{
 		  parameters[pi][j] = tolower(parameters[pi][j]);
 		}

notes.adoc

@@ -11,7 +11,7 @@ The principal maintainers of this code are Eric S. Raymond and Jason
 Ninneman.  Eric received Don Woods's encouragement to update and ship
 the game; Jason signed on early in the process to help. The assistance
 of Peje Nilsson in restructuring some particularly grotty gotos is
-gratefully acknowledged.
+gratefully acknowledged. Petr Voropaev contributed fuzz testing.
 
 == Nomenclature ==
 

score.c

@@ -110,7 +110,7 @@ void score(enum termination mode)
     SETPRM(1,score,mxscor);
     SETPRM(3,game.turns,game.turns);
     RSPEAK(TOTAL_SCORE);
-    for (long i=1; i<=CLSSES; i++) {
+    for (long i=1; i<=(long)CLSSES; i++) {
 	if(CVAL[i] >= score) {
 	    newspeak(class_messages[i]);
 	    i=CVAL[i]+1-score;