Add support for configuring PowerPC kernels.

Reviewed by:	peter

usr.sbin/config/config.h

@@ -100,6 +100,7 @@ char	*machinename;
 #define MACHINE_PC98	2
 #define MACHINE_ALPHA	3
 #define MACHINE_IA64	4
+#define MACHINE_POWERPC	5
 
 /*
  * For each machine, a set of CPU's may be specified as supported.

usr.sbin/config/config.y

@@ -133,6 +133,9 @@ Config_spec:
 		} else if (!strcmp($2, "ia64")) {
 			machine = MACHINE_IA64;
 			machinename = "ia64";
+		} else if (!strcmp($2, "powerpc")) {
+			machine = MACHINE_POWERPC;
+			machinename = "powerpc";
 		} else
 			yyerror("Unknown machine type");
 	      } |

usr.sbin/config/main.c

@@ -145,6 +145,7 @@ main(int argc, char **argv)
 	case MACHINE_PC98:
 	case MACHINE_ALPHA:
 	case MACHINE_IA64:
+	case MACHINE_POWERPC:
 		break;
 
 	default:

usr.sbin/config/mkoptions.c

@@ -61,6 +61,7 @@ static	struct users {
 	{ 8, 2, 512 },			/* MACHINE_PC98 */
 	{ 8, 2, 512 },			/* MACHINE_ALPHA */
 	{ 8, 2, 512 },			/* MACHINE_IA64 */
+	{ 8, 2, 512 },			/* MACHINE_POWERPC */
 };
 #define	NUSERS	(sizeof (users) / sizeof (users[0]))