* configure.in: Use AC_FUNC_STRNLEN.

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.52g for GNU Bison 1.30j.
+# Generated by GNU Autoconf 2.52g for GNU Bison 1.30k.
 #
 # Report bugs to <bug-bison@gnu.org>.
 #
@@ -256,8 +256,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='GNU Bison'
 PACKAGE_TARNAME='bison'
-PACKAGE_VERSION='1.30j'
-PACKAGE_STRING='GNU Bison 1.30j'
+PACKAGE_VERSION='1.30k'
+PACKAGE_STRING='GNU Bison 1.30k'
 PACKAGE_BUGREPORT='bug-bison@gnu.org'
 
 # Factoring default headers for most tests.
@@ -760,7 +760,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures GNU Bison 1.30j to adapt to many kinds of systems.
+\`configure' configures GNU Bison 1.30k to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -826,7 +826,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of GNU Bison 1.30j:";;
+     short | recursive ) echo "Configuration of GNU Bison 1.30k:";;
    esac
   cat <<\_ACEOF
 
@@ -921,7 +921,7 @@ fi
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
-GNU Bison configure 1.30j
+GNU Bison configure 1.30k
 generated by GNU Autoconf 2.52g
 
 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
@@ -936,7 +936,7 @@ cat >&5 <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by GNU Bison $as_me 1.30j, which was
+It was created by GNU Bison $as_me 1.30k, which was
 generated by GNU Autoconf 2.52g.  Invocation command line was
 
   $ $0 $@
@@ -1500,7 +1500,7 @@ fi
 
 # Define the identity of the package.
 PACKAGE=bison
-VERSION=1.30j
+VERSION=1.30k
 
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE "$PACKAGE"
@@ -5019,6 +5019,73 @@ if test $ac_cv_lib_error_at_line = no; then
   LIBOBJS="$LIBOBJS error.$ac_objext"
 fi
 
+echo "$as_me:$LINENO: checking for working strnlen" >&5
+echo $ECHO_N "checking for working strnlen... $ECHO_C" >&6
+if test "${ac_cv_func_strnlen_working+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_func_strnlen_working=no
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+#define S "foobar"
+#define S_LEN (sizeof S - 1)
+
+  /* At least one implementation is buggy: that of AIX 4.3 would
+     give strnlen (S, 1) == 3.  */
+
+  int i;
+  for (i = 0; i < S_LEN + 1; ++i)
+    {
+      int expected = i <= S_LEN ? i : S_LEN;
+      if (strnlen (S, i) != expected)
+	exit (1);
+    }
+  exit (0);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_strnlen_working=yes
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_func_strnlen_working=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_strnlen_working" >&5
+echo "${ECHO_T}$ac_cv_func_strnlen_working" >&6
+test $ac_cv_func_strnlen_working = no && LIBOBJS="$LIBOBJS strnlen.$ac_objext"
+
 
 
 for ac_func in mkstemp setlocale
@@ -5475,8 +5542,7 @@ fi
 
 
 
-
-for ac_func in stpcpy strchr strnlen strspn memchr memrchr
+for ac_func in stpcpy strchr strspn memchr memrchr
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -9311,7 +9377,7 @@ _ASBOX
 } >&5
 cat >&5 <<_CSEOF
 
-This file was extended by GNU Bison $as_me 1.30j, which was
+This file was extended by GNU Bison $as_me 1.30k, which was
 generated by GNU Autoconf 2.52g.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -9373,7 +9439,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-GNU Bison config.status 1.30j
+GNU Bison config.status 1.30k
 configured by $0, generated by GNU Autoconf 2.52g,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"