Fix the type declaration of the sendTrace option variable for 64-bit

StackVM compiles.  Add the missing command-line parser for it on Mac.

Author: eliotmiranda

platforms/Mac OS/vm/sqMacUnixCommandLineInterface.c

@@ -180,7 +180,7 @@ static int parseArgument(int argc, char **argv)
 	printPhaseTime(1);
 	return 1; }
 #if (STACKVM || NewspeakVM) && !COGVM
-  else if (!strcmp(argv[0], VMOPTION("sendtrace"))) { extern sqInt sendTrace; sendTrace = 1; return 1; }
+  else if (!strcmp(argv[0], VMOPTION("sendtrace"))) { extern volatile int sendTrace; sendTrace = 1; return 1; }
 #endif
   else if (argc > 1 && !strcmp(argv[0], VMOPTION("memory")))	{ 
 	gMaxHeapSize = strtolbkmg(argv[1]);	 

platforms/iOS/vm/OSX/sqSqueakOSXApplication.m

@@ -254,6 +254,13 @@ - (int) parseArgument: (NSString *) argData peek: (char *) peek
 		return 1;
 	}
 #endif
+#if (STACKVM || NewspeakVM) && !COGVM
+	if ([argData isEqualToString: VMOPTIONOBJ("sendtrace")]) {
+		extern volatile int sendTrace;
+		sendTrace = 1;
+		return 1;
+	}
+#endif
 #if COGVM
 	if ([argData compare: VMOPTIONOBJ("trace") options: NSLiteralSearch range: NSMakeRange(0,VMOPTIONLEN(6))] == NSOrderedSame) {
 		extern int traceFlags;

platforms/unix/vm/sqUnixMain.c

@@ -1558,7 +1558,7 @@ static int vm_parseArgument(int argc, char **argv)
   else if (!strcmp(argv[0], VMOPTION("aiolog")))	{ aioDebugLogging = 1; return 1; }
 #endif
 #if (STACKVM || NewspeakVM) && !COGVM
-  else if (!strcmp(argv[0], VMOPTION("sendtrace"))) { extern sqInt sendTrace; sendTrace = 1; return 1; }
+  else if (!strcmp(argv[0], VMOPTION("sendtrace"))) { extern volatile int sendTrace; sendTrace = 1; return 1; }
 #endif
   else if (!strcmp(argv[0], VMOPTION("single")))    { runAsSingleInstance=1; return 1; }
   /* option requires an argument */

platforms/win32/vm/sqWin32Main.c

@@ -1477,7 +1477,7 @@ sqImageFile findEmbeddedImage(void) { return 0; }
 /*                        sqMain                                            */
 /****************************************************************************/
 #if (STACKVM || NewspeakVM) && !COGVM
-extern sqInt sendTrace;
+extern volatile int sendTrace;
 #endif
 #if STACKVM || NewspeakVM
 extern sqInt checkForLeaks;
@@ -1893,7 +1893,7 @@ parseVMArgument(int argc, char *argv[])
 #endif /* VISTA_SECURITY */
 #if (STACKVM || NewspeakVM) && !COGVM
 	else if (!strcmp(argv[0], VMOPTION("sendtrace")))
-		{ extern sqInt sendTrace; sendTrace = 1; return 1; }
+		{ extern volatile int sendTrace; sendTrace = 1; return 1; }
 #endif
 
 	/* parameters */