1 files changed, 4 insertions, 53 deletions

diff --git a/newlib/libc/string/strcasestr.c b/newlib/libc/string/strcasestr.c
index a8276e2b5..4f6f87e97 100644
--- a/newlib/libc/string/strcasestr.c
+++ b/newlib/libc/string/strcasestr.c
@@ -1,7 +1,7 @@
 /*
 FUNCTION
 	<<strcasestr>>---case-insensitive character string search
-
+	
 INDEX
 	strcasestr
 
@@ -21,9 +21,9 @@ DESCRIPTION
 	is identical to <<strstr>> except the search is
 	case-insensitive.
 
-RETURNS
+RETURNS 
 
-	A pointer to the first case-insensitive occurrence of the sequence
+	A pointer to the first case-insensitive occurrence of the sequence 
 	<[find]> or <<NULL>> if no match was found.
 
 PORTABILITY
@@ -40,7 +40,7 @@ QUICKREF
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
- * The quadratic code is derived from software contributed to Berkeley by
+ * This code is derived from software contributed to Berkeley by
  * Chris Torek.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -67,26 +67,12 @@ QUICKREF
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-/* Linear algorithm Copyright (C) 2008 Eric Blake
- * Permission to use, copy, modify, and distribute the linear portion of
- * software is freely granted, provided that this notice is preserved.
- */
 
 #include <sys/cdefs.h>
 
 #include <ctype.h>
 #include <string.h>
 
-#if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__)
-# define RETURN_TYPE char *
-# define AVAILABLE(h, h_l, j, n_l)			\
-  (!memchr ((h) + (h_l), '\0', (j) + (n_l) - (h_l))	\
-   && ((h_l) = (j) + (n_l)))
-# define CANON_ELEMENT(c) tolower (c)
-# define CMP_FUNC strncasecmp
-# include "str-two-way.h"
-#endif
-
 /*
  * Find the first occurrence of find in s, ignore case.
  */
@@ -94,9 +80,6 @@ char *
 strcasestr(s, find)
 	const char *s, *find;
 {
-#if defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
-
-  /* Less code size, but quadratic performance in the worst case.  */
 	char c, sc;
 	size_t len;
 
@@ -112,36 +95,4 @@ strcasestr(s, find)
 		s--;
 	}
 	return ((char *)s);
-
-#else /* compilation for speed */
-
-  /* Larger code size, but guaranteed linear performance.  */
-  const char *haystack = s;
-  const char *needle = find;
-  size_t needle_len; /* Length of NEEDLE.  */
-  size_t haystack_len; /* Known minimum length of HAYSTACK.  */
-  int ok = 1; /* True if NEEDLE is prefix of HAYSTACK.  */
-
-  /* Determine length of NEEDLE, and in the process, make sure
-     HAYSTACK is at least as long (no point processing all of a long
-     NEEDLE if HAYSTACK is too short).  */
-  while (*haystack && *needle)
-    ok &= (tolower ((unsigned char) *haystack++)
-	   == tolower ((unsigned char) *needle++));
-  if (*needle)
-    return NULL;
-  if (ok)
-    return (char *) s;
-  needle_len = needle - find;
-  haystack = s + 1;
-  haystack_len = needle_len - 1;
-
-  /* Perform the search.  */
-  if (needle_len < LONG_NEEDLE_THRESHOLD)
-    return two_way_short_needle ((const unsigned char *) haystack,
-				 haystack_len,
-				 (const unsigned char *) find, needle_len);
-  return two_way_long_needle ((const unsigned char *) haystack, haystack_len,
-			      (const unsigned char *) find, needle_len);
-#endif /* compilation for speed */
 }