added rcsid

added code to check for write errors on codefile

mach/proto/cg/gencode.c

@@ -1,3 +1,7 @@
+#ifndef NORCSID
+static char rcsid[] = "$Header$";
+#endif
+
 #include "assert.h"
 #include <stdio.h>
 #include "param.h"
@@ -59,6 +63,12 @@ out_finish() {
 		fclose(codefile);
 }
 
+tstoutput() {
+
+	if (ferror(codefile))
+		error("Write error on output");
+}
+
 gencode(code) register char *code; {
 	register c;
 	int tokno,fldno,insno,regno,subno;