Index: src/main.cc
===================================================================
--- src/main.cc	(revision 70e4895df852f87e5e85f88a39cff538fc975fdc)
+++ src/main.cc	(revision c59bde69432528e27b27482abf00c0d2c98f6949)
@@ -10,7 +10,7 @@
 // Author           : Richard C. Bilson
 // Created On       : Fri May 15 23:12:02 2015
-// Last Modified By : Andrew Beach
-// Last Modified On : Wed Jul 26 14:38:00 2017
-// Update Count     : 443
+// Last Modified By : Peter A. Buhr
+// Last Modified On : Tue Oct 31 12:22:40 2017
+// Update Count     : 445
 //
 
@@ -81,4 +81,5 @@
 	expraltp = false,
 	libcfap = false,
+	preludep = false,
 	nopreludep = false,
 	noprotop = false,
@@ -378,5 +379,5 @@
 
 void parse_cmdline( int argc, char * argv[], const char *& filename ) {
-	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
+	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Preamble, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
 
 	static struct option long_opts[] = {
@@ -390,4 +391,5 @@
 		{ "grammar", no_argument, 0, Grammar },
 		{ "libcfa", no_argument, 0, LibCFA },
+		{ "preamble", no_argument, 0, Preamble },
 		{ "no-preamble", no_argument, 0, Nopreamble },
 		{ "parse", no_argument, 0, Parse },
@@ -405,5 +407,5 @@
 
 	int c;
-	while ( (c = getopt_long( argc, argv, "abBcCdefglLmnpqrstTvyzZD:F:", long_opts, &long_index )) != -1 ) {
+	while ( (c = getopt_long( argc, argv, "abBcCdefglLmnNpqrstTvyzZD:F:", long_opts, &long_index )) != -1 ) {
 		switch ( c ) {
 		  case Ast:
@@ -451,4 +453,8 @@
 		  case 'n':										// do not read preamble
 			nopreludep = true;
+			break;
+		  case Preamble:
+		  case 'N':										// read preamble
+			preludep = true;
 			break;
 		  case Prototypes: