Index: trunk/src/error.c
===================================================================
--- trunk/src/error.c	(revision 1009)
+++ trunk/src/error.c	(revision 1010)
@@ -110,7 +110,7 @@
  * print standard 'open error'
  */
 void
-OpenErrorMessage (char *Filename)
+OpenErrorMessage (const char *Filename)
 {
   char *utf8 = NULL;
 
@@ -130,7 +130,7 @@
  * print standard 'popen error'
  */
 void
-PopenErrorMessage (char *Filename)
+PopenErrorMessage (const char *Filename)
 {
   char *utf8 = NULL;
 
@@ -150,7 +150,7 @@
  * print standard 'opendir'
  */
 void
-OpendirErrorMessage (char *DirName)
+OpendirErrorMessage (const char *DirName)
 {
   char *utf8 = NULL;
 
@@ -170,7 +170,7 @@
  * print standard 'chdir error'
  */
 void
-ChdirErrorMessage (char *DirName)
+ChdirErrorMessage (const char *DirName)
 {
   char *utf8 = NULL;
 
@@ -190,7 +190,7 @@
  * output of fatal error message
  */
 void
-MyFatal (char *Format, ...)
+MyFatal (const char *Format, ...)
 {
   va_list args;
 
Index: trunk/src/error.h
===================================================================
--- trunk/src/error.h	(revision 1009)
+++ trunk/src/error.h	(revision 1010)
@@ -37,11 +37,11 @@
 #define	STATUS_ERROR	-1
 
 void Message (const char *Format, ...);
-void MyFatal (char *Format, ...);
-void OpenErrorMessage (char *);
-void PopenErrorMessage (char *);
-void OpendirErrorMessage (char *);
-void ChdirErrorMessage (char *);
+void MyFatal (const char *Format, ...);
+void OpenErrorMessage (const char *);
+void PopenErrorMessage (const char *);
+void OpendirErrorMessage (const char *);
+void ChdirErrorMessage (const char *);
 void CatchSignal (int);
 
 #endif