Update. cvs/libc-ud-970924

1997-09-25 00:23  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-profile.c: Correct implementation.

	* io/ftwtest-sh: Don't depend on TMPDIR == /tmp.

	* locale/setlocale.c: Rewrite a bit for more clarity.

	* math/Makefile (libm-calls): Add w_exp2.
	* math/math_private.h: Add prototypes for __ieee754_exp2{,f,l}.
	* sysdeps/libm-i387/s_exp2.S: Change name to __ieee754_exp2.
	* sysdeps/libm-i387/s_exp2f.S: Likewise.
	* sysdeps/libm-i387/s_exp2l.S: Likewise.
	* sysdeps/libm-ieee754/k_standard.c: Add error cases for exp2.

	* string/bits/string2.h (__strcpy_small): Optimize.
	(__stpcpy_small): Likewise.
	(strncpy): Use variable for dest argument since it's used more than
	once.
	(strncat): Likewise.
	(strcmp): Add optimization for this function.
	* sysdeps/i386/i486/string.h (strlen): Correctly use __builtin_strlen.
	(__strcpy_small): Optimize.
	(__stpcpy_small): Likewise.
	(__stpcpy_c): Correctly use __mempcpy_* macros.
	(__mempcpy_by2, __mempcpy_by4, __mempcpy_byn): Return pointer to
	byte following last copied.
	(strncat): Use variable for dest argument since it's used more than
	once.
	(strcmp): Add optimization for this function.

	* sysdeps/i386/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Use
	.text and .previous to select correct section.

1997-09-23 19:56  Philip Blundell  <Philip.Blundell@pobox.com>

	* configure.in: Add `--disable-versioning' option to suppress the
	use of symbol versions even if binutils claims to support it.

1997-09-24 20:10  Philip Blundell  <Philip.Blundell@pobox.com>

	* csu/Makefile (before-compile): Don't try to build abi-tags.h if
	not using ELF.

1997-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/sofini.c [HAVE_DWARF2_UNWIND_INFO]: Supply termination for
	the frame unwind info section.

	* elf/soinit.c [HAVE_DWARF2_UNWIND_INFO]: Register and unregister
	the frame unwind info.

	* config.h.in (HAVE_DWARF2_UNWIND_INFO): Add #undef.

	* configure.in: Check whether gcc supports DWARF2 unwind info.

	* libc.map: Export frame handling tables.

1997-09-10 06:56  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/unix/sysv/linux/powerpc/bits/kernel_termios.h:
	Use the size of the kernel's termios structure for ioctls.

	* sysdeps/powerpc/dl-machine.h: Prepare for library profiling.

	* sysdeps/powerpc/bits/mathinline.h: Add slightly slower versions
	of the C9X FP comparison macros. Delete 'fabs' and 'sqrt' inline
	routines, because gcc has them as internals.

	* sysdeps/powerpc/Makefile (pic-ccflags): Define this instead of
	CFLAGS-.os.

	* sysdeps/powerpc/bzero.S: New file.
	* sysdeps/powerpc/strcat.c: New file.
	* sysdeps/powerpc/strcpy.S: New file.
	* sysdeps/powerpc/stpcpy.S: New file.

	* math/Makefile: Add atest_exp2, test-reduce.
	* math/atest_exp2.c: New file.
	* math/test-reduce.c: New file.
	* sysdeps/libm-ieee754/Dist: New file.
	* sysdeps/libm-ieee754/s_exp2.c: New file.
	* sysdeps/libm-ieee754/s_exp2f.c: New file.
	* sysdeps/libm-ieee754/t_exp2.h: New file.
	* sysdeps/libm-ieee754/t_exp2f.h: New file.
	* math/libm-test.c (exp2_test): Add some more tests.

	* Rules: Use empty.os instead of empty.o, since it gets linked into
	libc.so...
	* configure.in: Add --disable-static to disable building .a files.
	* config.make.in: Substitute the new variable.
	* Makeconfig: Don't build .o files if not building .a files.

	* elf/dl-runtime.c (fixup): Factor out call to elf_machine_relplt.
	(profile_fixup): Likewise.

1997-09-23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* posix/globtest.c (main): Change to directory passed as first
	argument.

	* posix/globtest.sh: Don't cd before running the program, instead
	pass testdir as argument, so that $common_objpfx remains valid.

1997-09-23 18:01  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_call.c (__do_niscall2): Fix multiple Server support.

	* nis/nis_findserver.c: Save latest working sockaddr_in.

1997-09-17 22:07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* configure.in: Automatically determine whether as and ld are the
	GNU versions.
	(options):  --with-gnu-{as,ld,binutils} replaced by
	single option --with-binutils=PATH specifying a -B option to gcc.
	* aclocal.m4: Two new macros defined, LIBC_PROG_FOO_GNU and
	LIBC_PROG_BINUTILS.

	* configure.in: Allow the user to force configuration for
	unsupported platforms with an undocumented option.

1997-09-22 16:55  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* sunrpc/get_myaddr.c (get_myaddress): Avoid loopback interfaces,
	return loopback address only if there is no other interface.

	* nis/Makefile: Add nis_callback libnsl-routines.

	* nis/nis_add.c: Use new __do_niscall* interface.
	* nis/nis_cache.c: Likewise.
	* nis/nis_checkpoint.c: Likewise.
	* nis/nis_lookup.c: Likewise.
	* nis/nis_mkdir.c: Likewise.
	* nis/nis_modify.c: Likewise.
	* nis/nis_ping.c: Likewise.
	* nis/nis_remove.c: Likewise.
	* nis/nis_rmdir.c: Likewise.
	* nis/nis_server.c: Likewise.
	* nis/nis_util.c: Likewise.

	* nis/rpcsvc/nis.h: Make C++ safe.

	* nis/nss_nisplus/nisplus-publickey.c (getsecretkey): Fix use
	of variables.

	* nis/nis_findserv.c: Make thread safe.

	* nis/nis_call.c: Add support for callback, Fix use of variables.
	* nis/nis_table.c: Add support for callback, FOLLOW_PATH and
	ALL_RESULTS.
	* nis/nis_callback.c: New, callback functions.
	* nis/nis_intern.h: Add callback declarations.

1997-09-20  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* string/bits/string2.h: Fix logic in preprocessor directive.
	(__strsep_1c, __strsep_g): Don't declare __retval as pointing to
	const, to save a cast and a possible warning.

1997-09-22 04:12  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/i486/atomicity.h (exchange_and_add): Really address
	memory in xadd not %1.

1997-09-21 13:56  Ulrich Drepper  <drepper@cygnus.com>

	* manual/maint.texi (Supported Configurations): Add SPARC64 to
	list of supported platforms.

1 files changed, 124 insertions, 74 deletions

diff --git a/string/bits/string2.h b/string/bits/string2.h
index b0e9cdcb8a..51255aaf4c 100644
--- a/string/bits/string2.h
+++ b/string/bits/string2.h
@@ -22,7 +22,7 @@
 # error "Never use <bits/string2.h> directly; include <string.h> instead."
 #endif
 
-#ifdef __NO_STRING_INLINES
+#ifndef __NO_STRING_INLINES
 
 /* Unlike the definitions in the header <bits/string.h> the
    definitions contained here are not optimizing down to assembler
@@ -100,102 +100,101 @@ __STRING2_COPY_TYPE (8);
 
 # if _STRING_ARCH_unaligned
 #  define __strcpy_small(dest, src, srclen) \
-  (__extension__ ({ char *__retval = (dest);				      \
-		    char *__cp = __retval;				      \
+  (__extension__ ({ unsigned char *__dest = (unsigned char *) (dest);	      \
 		    switch (srclen)					      \
 		      {							      \
 		      case 1:						      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 2:						      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) __dest) =			      \
 			  __STRING2_SMALL_GET16 (src, 0);		      \
 			break;						      \
 		      case 3:						      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) __dest) =			      \
 			  __STRING2_SMALL_GET16 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*(__dest + 2) = '\0';				      \
 			break;						      \
 		      case 4:						      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
 			break;						      \
 		      case 5:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*(__dest + 4) = '\0';				      \
 			break;						      \
 		      case 6:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING2_SMALL_GET16 (src, 4);		      \
 			break;						      \
 		      case 7:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING2_SMALL_GET16 (src, 4);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*(__dest + 6) = '\0';				      \
 			break;						      \
 		      case 8:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) (__dest + 4)) =		      \
 			  __STRING2_SMALL_GET32 (src, 4);		      \
 			break;						      \
 		      }							      \
-		    __retval; }))
+		    (char *) __dest; }))
 # else
 #  define __strcpy_small(dest, src, srclen) \
-  (__extension__ ({ char *__cp = (dest);				      \
+  (__extension__ ({ unsigned char *__dest = (unsigned char *) (dest);	      \
 		    switch (srclen)					      \
 		      {							      \
 		      case 1:						      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 2:						      \
-			*((__STRING2_COPY_ARR2 *) __cp) =		      \
+			*((__STRING2_COPY_ARR2 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR2) { { (src)[0], '\0' } });     \
 			break;						      \
 		      case 3:						      \
-			*((__STRING2_COPY_ARR3 *) __cp) =		      \
+			*((__STRING2_COPY_ARR3 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR3) { { (src)[0], (src)[1],      \
 						     '\0' } });		      \
 			break;						      \
 		      case 4:						      \
-			*((__STRING2_COPY_ARR4 *) __cp) =		      \
+			*((__STRING2_COPY_ARR4 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR4) { { (src)[0], (src)[1],      \
 						     (src)[2], '\0' } });     \
 			break;						      \
 		      case 5:						      \
-			*((__STRING2_COPY_ARR5 *) __cp) =		      \
+			*((__STRING2_COPY_ARR5 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR5) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     '\0' } });		      \
 			break;						      \
 		      case 6:						      \
-			*((__STRING2_COPY_ARR6 *) __cp) =		      \
+			*((__STRING2_COPY_ARR6 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR6) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     (src)[4], '\0' } });     \
 			break;						      \
 		      case 7:						      \
-			*((__STRING2_COPY_ARR7 *) __cp) =		      \
+			*((__STRING2_COPY_ARR7 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR7) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     (src)[4], (src)[5],      \
 						     '\0' } });		      \
 			break;						      \
 		      case 8:						      \
-			*((__STRING2_COPY_ARR8 *) __cp) =		      \
+			*((__STRING2_COPY_ARR8 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR8) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     (src)[4], (src)[5],      \
 						     (src)[6], '\0' } });     \
 			break;						      \
 		    }							      \
-		  __cp; }))
+		  (char *) __dest; }))
 # endif
 #endif
 
@@ -215,105 +214,106 @@ __STRING2_COPY_TYPE (8);
 
 #  if _STRING_ARCH_unaligned
 #   define __stpcpy_small(dest, src, srclen) \
-  (__extension__ ({ char *__cp = (dest);				      \
+  (__extension__ ({ unsigned char *__dest = (unsigned char *) (dest);	      \
 		    switch (srclen)					      \
 		      {							      \
 		      case 1:						      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 2:						      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) __dest) =			      \
 			  __STRING2_SMALL_GET16 (src, 0);		      \
-			++__cp;						      \
+			++__dest;					      \
 			break;						      \
 		      case 3:						      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) __dest)++ =			      \
 			  __STRING2_SMALL_GET16 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 4:						      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			__cp += 3;					      \
+			__dest += 3;					      \
 			break;						      \
 		      case 5:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest)++ =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 6:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING2_SMALL_GET16 (src, 4);		      \
-			++__cp;						      \
+			__dest += 5;					      \
 			break;						      \
 		      case 7:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING2_SMALL_GET16 (src, 4);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			__dest += 6;					      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 8:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING2_SMALL_GET32 (src, 0);		      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) (__dest + 4)) =		      \
 			  __STRING2_SMALL_GET32 (src, 4);		      \
-			__cp += 3;					      \
+			__dest += 7;					      \
 			break;						      \
 		      }							      \
-		    __cp; }))
+		    (char *) __dest; }))
 #  else
 #   define __stpcpy_small(dest, src, srclen) \
-  (__extension__ ({ char *__cp = (dest);				      \
+  (__extension__ ({ unsigned char *__dest = (unsigned char *) (dest);	      \
 		    switch (srclen)					      \
 		      {							      \
 		      case 1:						      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 2:						      \
-			*((__STRING2_COPY_ARR2 *) __cp) =		      \
+			*((__STRING2_COPY_ARR2 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR2) { { (src)[0], '\0' } });     \
 			break;						      \
 		      case 3:						      \
-			*((__STRING2_COPY_ARR3 *) __cp) =		      \
+			*((__STRING2_COPY_ARR3 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR3) { { (src)[0], (src)[1],      \
 						     '\0' } });		      \
 			break;						      \
 		      case 4:						      \
-			*((__STRING2_COPY_ARR4 *) __cp) =		      \
+			*((__STRING2_COPY_ARR4 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR4) { { (src)[0], (src)[1],      \
 						     (src)[2], '\0' } });     \
 			break;						      \
 		      case 5:						      \
-			*((__STRING2_COPY_ARR5 *) __cp) =		      \
+			*((__STRING2_COPY_ARR5 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR5) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     '\0' } });		      \
 			break;						      \
 		      case 6:						      \
-			*((__STRING2_COPY_ARR6 *) __cp) =		      \
+			*((__STRING2_COPY_ARR6 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR6) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     (src)[4], '\0' } });     \
 			break;						      \
 		      case 7:						      \
-			*((__STRING2_COPY_ARR7 *) __cp) =		      \
+			*((__STRING2_COPY_ARR7 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR7) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     (src)[4], (src)[5],      \
 						     '\0' } });		      \
 			break;						      \
 		      case 8:						      \
-			*((__STRING2_COPY_ARR8 *) __cp) =		      \
+			*((__STRING2_COPY_ARR8 *) __dest) =		      \
 			  ((__STRING2_COPY_ARR8) { { (src)[0], (src)[1],      \
 						     (src)[2], (src)[3],      \
 						     (src)[4], (src)[5],      \
 						     (src)[6], '\0' } });     \
 			break;						      \
 		    }							      \
-		  __cp + ((srclen) - 1); }))
+		  (char *) (__dest + ((srclen) - 1)); }))
 #  endif
 # endif
 #endif
@@ -323,13 +323,14 @@ __STRING2_COPY_TYPE (8);
 #ifndef _HAVE_STRING_ARCH_strncpy
 # if defined _HAVE_STRING_ARCH_memset && defined _HAVE_STRING_ARCH_mempcpy
 #  define strncpy(dest, src, n) \
-  (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
-		  ? (strlen (src) + 1 >= ((size_t) (n))			      \
-		     ? (char *) memcpy (dest, src, n)			      \
-		     : (memset (__mempcpy (dest, src, strlen (src)), '\0',    \
-				n - strlen (src)),			      \
-			(char *) dest))					      \
-		  : strncpy (dest, src, n)))
+  (__extension__ ({ char *__dest = (dest);				      \
+		    __builtin_constant_p (src) && __builtin_constant_p (n)    \
+		    ? (strlen (src) + 1 >= ((size_t) (n))		      \
+		       ? (char *) memcpy (__dest, src, n)		      \
+		       : (memset (__mempcpy (__dest, src, strlen (src)),      \
+				  '\0', n - strlen (src)),		      \
+			  __dest))					      \
+		    : strncpy (__dest, src, n); }))
 # else
 #  define strncpy(dest, src, n) \
   (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
@@ -345,11 +346,12 @@ __STRING2_COPY_TYPE (8);
 #ifndef _HAVE_STRING_ARCH_strncat
 # ifdef _HAVE_STRING_ARCH_strchr
 #  define strncat(dest, src, n) \
-  (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
-		  ? (strlen (src) < ((size_t) (n))			      \
-		     ? strcat (dest, src)				      \
-		     : (memcpy (strchr (dest, '\0'), src, n), (char *) dest)) \
-		  : strncat (dest, src, n)))
+  (__extension__ ({ char *__dest = (dest);				      \
+		    __builtin_constant_p (src) && __builtin_constant_p (n)    \
+		    ? (strlen (src) < ((size_t) (n))			      \
+		       ? strcat (__dest, src)				      \
+		       : (memcpy (strchr (__dest, '\0'), src, n), __dest))    \
+		    : strncat (dest, src, n); }))
 # else
 #  define strncat(dest, src, n) \
   (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
@@ -361,6 +363,54 @@ __STRING2_COPY_TYPE (8);
 #endif
 
 
+/* Compare characters of S1 and S2.  */
+#ifndef _HAVE_STRING_ARCH_strcmp
+# define strcmp(s1, s2) \
+  (__extension__ (__builtin_constant_p (s1) && __builtin_constant_p (s2)      \
+		  && (sizeof (s1)[0] != 1 || strlen (s1) >= 4)		      \
+		  && (sizeof (s2)[0] != 1 || strlen (s2) >= 4)		      \
+		  ? memcmp (s1, s2, (strlen (s1) < strlen (s2)		      \
+				     ? strlen (s1) : strlen (s2)) + 1)	      \
+		  : (__builtin_constant_p (s1) && sizeof (s1)[0] == 1	      \
+		     && sizeof (s2)[0] == 1 && strlen (s1) < 4		      \
+		     ? __strcmp_cg (s1, s2, strlen (s1))		      \
+		     : (__builtin_constant_p (s2) && sizeof (s1)[0] == 1      \
+			&& sizeof (s2)[0] == 1 && strlen (s2) < 4	      \
+			? __strcmp_gc (s1, s2, strlen (s2))		      \
+			: strcmp (s1, s2)))))
+
+# define __strcmp_cg(s1, s2, l1) \
+  (__extension__ ({ __const unsigned char *__s2 = (unsigned char *) (s2);     \
+		    register int __result = (unsigned char) (s1)[0] - __s2[0];\
+		    if (l1 > 0 && __result == 0)			      \
+		      {							      \
+			__result = (unsigned char) (s1)[1] - __s2[1];	      \
+			if (l1 > 1 && __result == 0)			      \
+			  {						      \
+			    __result = (unsigned char) (s1)[2] - __s2[2];     \
+			    if (l1 > 2 && __result == 0)		      \
+			      __result = (unsigned char) (s1)[3] - __s2[3];   \
+			  }						      \
+		      }							      \
+		    __result; }))
+
+# define __strcmp_gc(s1, s2, l2) \
+  (__extension__ ({ __const unsigned char *__s1 = (unsigned char *) (s1);     \
+		    register int __result = __s1[0] - (unsigned char) (s2)[0];\
+		    if (l2 > 0 && __result == 0)			      \
+		      {							      \
+			__result = __s1[1] - (unsigned char) (s2)[1];	      \
+			if (l2 > 1 && __result == 0)			      \
+			  {						      \
+			    __result = __s1[2] - (unsigned char) (s2)[2];     \
+			    if (l2 > 2 && __result == 0)		      \
+			      __result = __s1[3] - (unsigned char) (s2)[3];   \
+			  }						      \
+		      }							      \
+		    __result; }))
+#endif
+
+
 /* Compare N characters of S1 and S2.  */
 #ifndef _HAVE_STRING_ARCH_strncmp
 # define strncmp(s1, s2, n) \
@@ -474,26 +524,26 @@ __STRING_INLINE char *__strsep_1c (char **__s, char __reject);
 __STRING_INLINE char *
 __strsep_1c (char **__s, char __reject)
 {
-  register __const char *__retval = *__s;
+  register char *__retval = *__s;
   if (__retval == NULL || *__retval == '\0')
     return NULL;
   while (*__retval == __reject)
     ++__retval;
   if ((*__s = strchr (__retval, __reject)) != NULL)
     *(*__s)++ = '\0';
-  return (char *) __retval;
+  return __retval;
 }
 
 __STRING_INLINE char *__strsep_g (char **__s, __const char *__reject);
 __STRING_INLINE char *
 __strsep_g (char **__s, __const char *__reject)
 {
-  register __const char *__retval = *__s;
+  register char *__retval = *__s;
   if (__retval == NULL || *__retval == '\0')
     return NULL;
   if ((*__s = strpbrk (__retval, __reject)) != NULL)
     *(*__s)++ = '\0';
-  return (char *) __retval;
+  return __retval;
 }
 # endif
 #endif