Fix flex 2.6.1's output regarding signed/unsigned comparisons.

[nmh] / sbr / m_backup.c

diff --git a/sbr/m_backup.c b/sbr/m_backup.c
index 86696db333517b069bd0de73b705d128178a2f47..9ba5a3b52fe4093531d2eca8b69ed672c680ed77 100644 (file)
--- a/sbr/m_backup.c
+++ b/sbr/m_backup.c
@@ -2,8 +2,6 @@
 /*
  * m_backup.c -- construct a backup file
  *
- * $Id$
- *
  * This code is Copyright (c) 2002, by the authors of nmh.  See the
  * COPYRIGHT file in the root directory of the nmh distribution for
  * complete copyright information.
@@ -13,18 +11,18 @@
 
 
 char *
-m_backup (char *file)
+m_backup (const char *file)
 {
-    char *cp;
+    const char *cp;
     static char buffer[BUFSIZ];
 
-    if ((cp = r1bindex(file, '/')) == file)
+    if ((cp = r1bindex((char *) file, '/')) == file)
        snprintf(buffer, sizeof(buffer), "%s%s",
                BACKUP_PREFIX, cp);
     else
-       snprintf(buffer, sizeof(buffer), "%.*s%s%s", cp - file, file,
+       snprintf(buffer, sizeof(buffer), "%.*s%s%s", (int)(cp - file), file,
                BACKUP_PREFIX, cp);
 
-    unlink(buffer);
+    (void) m_unlink(buffer);
     return buffer;
 }