X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/5dd6771b28c257af405d7248639ed0e3bcdce38b..cf57870921b26703aad420c6741c524b33736ff1:/sbr/m_backup.c

diff --git a/sbr/m_backup.c b/sbr/m_backup.c
index c34c4097..9ba5a3b5 100644
--- a/sbr/m_backup.c
+++ b/sbr/m_backup.c
@@ -11,18 +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", (int)(cp - file), file,
 		BACKUP_PREFIX, cp);
 
-    unlink(buffer);
+    (void) m_unlink(buffer);
     return buffer;
 }