Index: src/marc.cxx
--- src/marc.cxx.orig
+++ src/marc.cxx
@@ -50,6 +50,7 @@
 #include "memcntl.h"
 #include "marclib.hxx"
 #include "marc.hxx"
+using std::cerr;
 
 MARC::MARC(STRING & Data)
 {
@@ -97,12 +98,12 @@ char fieldbuffer[FIELDBUFSIZE];
 char linebuffer[FIELDBUFSIZE];
 
 typedef struct {
-	char *label;
-	char *tags;
-	char *subfields;
-        char *beginpunct;
-	char *subfsep;
-	char *endpunct;
+	const char *label;
+	const char *tags;
+	const char *subfields;
+        const char *beginpunct;
+	const char *subfsep;
+	const char *endpunct;
         int  newfield;
 	int  print_all;
 	int  print_indicators;
@@ -243,7 +244,8 @@ void MARC::Print(FILE *fp)
 char *format_field(MARC_FIELD *mf,DISP_FORMAT *format,char *buff,int repeat)
 {
 	MARC_SUBFIELD *subf;
-	register char *linend, *c;
+	register char *linend;
+	const char *c;
         int pos, count, ok;
 	
 	linend = buff;