Do not use '#endif/#else xxx'; it is not allowed for ANSI C

util/cpp/Makefile

@@ -2,4 +2,4 @@ distr:
 	echo '#ifndef	lint' > Version.c
 	echo 'char Version[] = "ACK C preprocessor Version XXX";' | \
 		sed "s/XXX/`RC -i`/" >> Version.c
-	echo '#endif	lint' >> Version.c
+	echo '#endif' >> Version.c

util/cpp/scan.c

@@ -118,7 +118,7 @@ copyact(ch1, ch2, level)
 		case ']':
 			error("unbalanced parenthesis");
 			break;
-#endif __MATCHING_PAR__
+#endif /* __MATCHING_PAR__ */
 
 		case '(':
 			copyact('(', ')', level+1);
@@ -136,7 +136,7 @@ copyact(ch1, ch2, level)
 		case '[':
 			copyact('[', ']', level+1);
 			break;
-#endif __MATCHING_PAR__
+#endif /* __MATCHING_PAR__ */
 
 		case '\n':
 			LineNumber++;

util/cpp/tokenname.c

@@ -52,4 +52,4 @@ struct tokenname tkfunny[] =	{	/* internal keywords */
 	{ERRONEOUS, "erroneous"},
 	{0, ""}
 };
-#endif	____
+#endif	/* ____ */