package: ndisc6: Drop local strverscmp() implementation

Both uClibc-ng-1.0.50 as well as musl-1.2.5 implement the function, it
should not be needed anymore.

Signed-off-by: Phil Sutter <phil@nwl.cc>

package/ndisc6/patches/patch-rdnssd_Makefile_am

@@ -1,13 +0,0 @@
-$Id: update-patches 24 2008-08-31 14:56:13Z wbx $
---- ndisc6-0.9.8.orig/rdnssd/Makefile.am	2008-05-01 14:52:28.000000000 +0200
-+++ ndisc6-0.9.8/rdnssd/Makefile.am	2009-05-10 19:45:05.000000000 +0200
-@@ -27,7 +27,8 @@ conf_SCRIPTS = merge-hook
- # rdnssd
- rdnssd_SOURCES = rdnssd.c rdnssd.h \
- 	icmp.c \
--	netlink.c
-+	netlink.c \
-+	strverscmp.c
- rdnssd_LDADD = $(LIBRT) \
- 		@top_builddir@/compat/libcompat.a
- 

package/ndisc6/patches/patch-rdnssd_Makefile_in

@@ -1,30 +0,0 @@
-$Id: update-patches 24 2008-08-31 14:56:13Z wbx $
---- ndisc6-0.9.8.orig/rdnssd/Makefile.in	2008-05-01 14:52:45.000000000 +0200
-+++ ndisc6-0.9.8/rdnssd/Makefile.in	2009-05-10 19:45:05.000000000 +0200
-@@ -58,7 +58,7 @@ CONFIG_CLEAN_FILES =
- am__installdirs = "$(DESTDIR)$(sbindir)" "$(DESTDIR)$(confdir)"
- sbinPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
- PROGRAMS = $(sbin_PROGRAMS)
--am_rdnssd_OBJECTS = rdnssd.$(OBJEXT) icmp.$(OBJEXT) netlink.$(OBJEXT)
-+am_rdnssd_OBJECTS = rdnssd.$(OBJEXT) icmp.$(OBJEXT) netlink.$(OBJEXT) strverscmp.$(OBJEXT)
- rdnssd_OBJECTS = $(am_rdnssd_OBJECTS)
- am__DEPENDENCIES_1 =
- rdnssd_DEPENDENCIES = $(am__DEPENDENCIES_1) \
-@@ -211,7 +211,8 @@ conf_SCRIPTS = merge-hook
- # rdnssd
- rdnssd_SOURCES = rdnssd.c rdnssd.h \
- 	icmp.c \
--	netlink.c
-+	netlink.c \
-+	strverscmp.c
- 
- rdnssd_LDADD = $(LIBRT) \
- 		@top_builddir@/compat/libcompat.a
-@@ -334,6 +335,7 @@ distclean-compile:
- 
- @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/icmp.Po@am__quote@
- @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netlink.Po@am__quote@
-+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/strverscmp.Po@am__quote@
- @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rdnssd.Po@am__quote@
- 
- .c.o:

package/ndisc6/src/rdnssd/strverscmp.c

@@ -1,131 +0,0 @@
-/* Compare strings while treating digits characters numerically.
-   Copyright (C) 1997, 2000, 2002, 2004 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jean-François Bignolles <bignolle@ecoledoc.ibp.fr>, 1997.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <string.h>
-#include <ctype.h>
-
-/* states: S_N: normal, S_I: comparing integral part, S_F: comparing
-           fractional parts, S_Z: idem but with leading Zeroes only */
-#define S_N    0x0
-#define S_I    0x4
-#define S_F    0x8
-#define S_Z    0xC
-
-/* result_type: CMP: return diff; LEN: compare using len_diff/diff */
-#define CMP    2
-#define LEN    3
-
-
-/* ISDIGIT differs from isdigit, as follows:
-   - Its arg may be any int or unsigned int; it need not be an unsigned char.
-   - It's guaranteed to evaluate its argument exactly once.
-   - It's typically faster.
-   POSIX says that only '0' through '9' are digits.  Prefer ISDIGIT to
-   ISDIGIT_LOCALE unless it's important to use the locale's definition
-   of `digit' even when the host does not conform to POSIX.  */
-#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
-
-#undef __strverscmp
-#undef strverscmp
-
-#ifndef weak_alias
-# define __strverscmp strverscmp
-#endif
-
-/* Compare S1 and S2 as strings holding indices/version numbers,
-   returning less than, equal to or greater than zero if S1 is less than,
-   equal to or greater than S2 (for more info, see the texinfo doc).
-*/
-
-int
-__strverscmp (const char *s1, const char *s2)
-{
-  const unsigned char *p1 = (const unsigned char *) s1;
-  const unsigned char *p2 = (const unsigned char *) s2;
-  unsigned char c1, c2;
-  int state;
-  int diff;
-
-  /* Symbol(s)    0       [1-9]   others  (padding)
-     Transition   (10) 0  (01) d  (00) x  (11) -   */
-  static const unsigned int next_state[] =
-  {
-      /* state    x    d    0    - */
-      /* S_N */  S_N, S_I, S_Z, S_N,
-      /* S_I */  S_N, S_I, S_I, S_I,
-      /* S_F */  S_N, S_F, S_F, S_F,
-      /* S_Z */  S_N, S_F, S_Z, S_Z
-  };
-
-  static const int result_type[] =
-  {
-      /* state   x/x  x/d  x/0  x/-  d/x  d/d  d/0  d/-
-                 0/x  0/d  0/0  0/-  -/x  -/d  -/0  -/- */
-
-      /* S_N */  CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
-                 CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
-      /* S_I */  CMP, -1,  -1,  CMP,  1,  LEN, LEN, CMP,
-                  1,  LEN, LEN, CMP, CMP, CMP, CMP, CMP,
-      /* S_F */  CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
-                 CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
-      /* S_Z */  CMP,  1,   1,  CMP, -1,  CMP, CMP, CMP,
-                 -1,  CMP, CMP, CMP
-  };
-
-  if (p1 == p2)
-    return 0;
-
-  c1 = *p1++;
-  c2 = *p2++;
-  /* Hint: '0' is a digit too.  */
-  state = S_N | ((c1 == '0') + (ISDIGIT (c1) != 0));
-
-  while ((diff = c1 - c2) == 0 && c1 != '\0')
-    {
-      state = next_state[state];
-      c1 = *p1++;
-      c2 = *p2++;
-      state |= (c1 == '0') + (ISDIGIT (c1) != 0);
-    }
-
-  state = result_type[state << 2 | ((c2 == '0') + (ISDIGIT (c2) != 0))];
-
-  switch (state)
-    {
-    case CMP:
-      return diff;
-
-    case LEN:
-      while (ISDIGIT (*p1++))
-	if (!ISDIGIT (*p2++))
-	  return 1;
-
-      return ISDIGIT (*p2) ? -1 : diff;
-
-    default:
-      return state;
-    }
-}
-#ifdef weak_alias
-weak_alias (__strverscmp, strverscmp)
-#endif