-# strtok_r.m4 serial 10
-dnl Copyright (C) 2002-2004, 2006-2007, 2009-2010 Free Software Foundation,
+# 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,
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CHECK_FUNCS([strtok_r])
if test $ac_cv_func_strtok_r = yes; then
+ HAVE_STRTOK_R=1
dnl glibc 2.7 has a bug in strtok_r that causes a segmentation fault
dnl when the second argument to strtok_r is a constant string that has
- dnl exactly one byte and compiling with optimization. This bug is, for
+ dnl exactly one byte and compiling with optimization. This bug is, for
dnl example, present in the glibc 2.7-18 package in Debian "lenny".
dnl See <http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614>.
AC_CACHE_CHECK([whether strtok_r works], [gl_cv_func_strtok_r_works],
#include <stdlib.h>
#include <string.h>
]],
- [[char delimiters[] = "xxxxxxxx";
- char *save_ptr = (char *) 0xd0d0;
- strtok_r (delimiters, "x", &save_ptr);
- strtok_r (NULL, "x", &save_ptr);
- return 0;
+ [[static const char dummy[] = "\177\01a";
+ char delimiters[] = "xxxxxxxx";
+ char *save_ptr = (char *) dummy;
+ strtok_r (delimiters, "x", &save_ptr);
+ strtok_r (NULL, "x", &save_ptr);
+ return 0;
]])
],
[gl_cv_func_strtok_r_works=yes],
])
case "$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])
- gl_PREREQ_STRTOK_R
+ HAVE_STRTOK_R=0
fi
AC_CHECK_DECLS_ONCE([strtok_r])
if test $ac_cv_have_decl_strtok_r = no; then