--- bt_ex.c.orig	Thu May 14 09:10:37 1992
+++ bt_ex.c	Sun Mar 31 19:35:56 2002
@@ -212,7 +212,8 @@
 
 
 #define TOLOWER(c) (isupper(c)?tolower(c):(c))
- 
+
+#ifndef HAVE_STRCASECMP
 int
 strcasecmp(s1,s2)
      char *s1, *s2;
@@ -252,6 +253,8 @@
     return(0);
 }
 
+#endif
+
 /* strstr - find first occurrence of wanted in s
    Copyright (C) 1989, Free Software Foundation.
    
@@ -261,6 +264,7 @@
 #define CONST
 #define SIZET int
 
+#ifndef HAVE_STRSTR
 #define	NULL	0
 
 char *				/* found string, or NULL if none */
@@ -286,29 +290,7 @@
 	return(NULL);
     return(scan);
 }
-
-
-char *				/*A case insensitive version */
-  strcasestr(s, wanted)
-CONST char *s;
-CONST char *wanted;
-{
-    register CONST char *scan;
-    register SIZET len;
-    register char firstc;
-    extern int strcmp();
-    extern SIZET strlen();
-    
-    firstc =  ( isupper( *wanted) ? tolower( *wanted) : *wanted);
-    len = strlen(wanted);
-    for (scan = s; strncasecmp(scan, wanted, len) != 0; ) {
-	
-	if (*scan++ == '\0')
-	  return(NULL);
-    }
-    return(scan);
-}
-
+#endif
 
 void toLower(s1)
      
@@ -640,9 +622,11 @@
 /* limit for ATTR_LIST including a pad */
 #define MAX_XVIEW_ATTRIBUTES    (255 - 20)
 
+#if !(defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__bsdi__))
 extern char *malloc();
 extern int free();
 extern int strcmp();
+#endif
 
 void
 ReassignListEntries(list, entries)