maint: update copyright

[gnulib.git] / m4 / strtok_r.m4

diff --git a/m4/strtok_r.m4 b/m4/strtok_r.m4
index 0e4acb9..ba24430 100644 (file)
--- a/m4/strtok_r.m4
+++ b/m4/strtok_r.m4
@@ -1,5 +1,6 @@
-# strtok_r.m4 serial 9
-dnl Copyright (C) 2002, 2003, 2004, 2007, 2009 Free Software Foundation, Inc.
+# strtok_r.m4 serial 13
+dnl Copyright (C) 2002-2004, 2006-2007, 2009-2014 Free Software Foundation,
+dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -13,9 +14,10 @@ AC_DEFUN([gl_FUNC_STRTOK_R],
   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_CHECK_FUNCS([strtok_r])
   if test $ac_cv_func_strtok_r = yes; then
+    HAVE_STRTOK_R=1
     dnl glibc 2.7 has a bug in strtok_r that causes a segmentation fault
     dnl when the second argument to strtok_r is a constant string that has
-    dnl exactly one byte and compiling with optimization.  This bug is, for
+    dnl exactly one byte and compiling with optimization.  This bug is, for
     dnl example, present in the glibc 2.7-18 package in Debian "lenny".
     dnl See <http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614>.
     AC_CACHE_CHECK([whether strtok_r works], [gl_cv_func_strtok_r_works],
@@ -29,11 +31,12 @@ AC_DEFUN([gl_FUNC_STRTOK_R],
               #include <stdlib.h>
               #include <string.h>
             ]],
-            [[char delimiters[] = "xxxxxxxx";
-              char *save_ptr = (char *) 0xd0d0;
-              strtok_r (delimiters, "x", &save_ptr);
-              strtok_r (NULL, "x", &save_ptr);
-              return 0;
+            [[static const char dummy[] = "\177\01a";
+              char delimiters[] = "xxxxxxxx";
+              char *save_ptr = (char *) dummy;
+              strtok_r (delimiters, "x", &save_ptr);
+              strtok_r (NULL, "x", &save_ptr);
+              return 0;
             ]])
          ],
          [gl_cv_func_strtok_r_works=yes],
@@ -50,20 +53,19 @@ changequote([,])dnl
       ])
     case "$gl_cv_func_strtok_r_works" in
       *no)
-        dnl We could set REPLACE_STRTOK_R=1 and AC_LIBOBJ([strtok_r]) here,
-        dnl but it's only the macro version in <bits/string2.h> which is wrong.
-        dnl The code compiled into libc is fine.
+        dnl We could set REPLACE_STRTOK_R=1 here, but it's only the macro
+        dnl version in <bits/string2.h> which is wrong. The code compiled
+        dnl into libc is fine.
         UNDEFINE_STRTOK_R=1
         ;;
     esac
   else
-    AC_LIBOBJ([strtok_r])
+    HAVE_STRTOK_R=0
   fi
   AC_CHECK_DECLS_ONCE([strtok_r])
   if test $ac_cv_have_decl_strtok_r = no; then
     HAVE_DECL_STRTOK_R=0
   fi
-  gl_PREREQ_STRTOK_R
 ])
 
 # Prerequisites of lib/strtok_r.c.