diff --git a/file.c b/file.c
index 29d401016b..c89cd855bb 100644
--- a/file.c
+++ b/file.c
@@ -153,13 +153,13 @@ apply2files(void (*func)(const char *, void *), VALUE vargs, void *arg)
 /*
  *  call-seq:
  *     file.path -> filename
- *  
+ *
  *  Returns the pathname used to create <i>file</i> as a string. Does
  *  not normalize the name.
- *     
+ *
  *     File.new("testfile").path               #=> "testfile"
  *     File.new("/tmp/../tmp/xxx", "w").path   #=> "/tmp/../tmp/xxx"
- *     
+ *
  */
 
 static VALUE
@@ -205,10 +205,10 @@ static struct timespec stat_mtimespec(struct stat *st);
 /*
  *  call-seq:
  *     stat <=> other_stat    => -1, 0, 1
- *  
+ *
  *  Compares <code>File::Stat</code> objects by comparing their
  *  respective modification times.
- *     
+ *
  *     f1 = File.new("f1", "w")
  *     sleep 1
  *     f2 = File.new("f2", "w")
@@ -237,10 +237,10 @@ rb_stat_cmp(VALUE self, VALUE other)
 /*
  *  call-seq:
  *     stat.dev    => fixnum
- *  
+ *
  *  Returns an integer representing the device on which <i>stat</i>
  *  resides.
- *     
+ *
  *     File.stat("testfile").dev   #=> 774
  */
 
@@ -253,10 +253,10 @@ rb_stat_dev(VALUE self)
 /*
  *  call-seq:
  *     stat.dev_major   => fixnum
- *  
+ *
  *  Returns the major part of <code>File_Stat#dev</code> or
  *  <code>nil</code>.
- *     
+ *
  *     File.stat("/dev/fd1").dev_major   #=> 2
  *     File.stat("/dev/tty").dev_major   #=> 5
  */
@@ -275,10 +275,10 @@ rb_stat_dev_major(VALUE self)
 /*
  *  call-seq:
  *     stat.dev_minor   => fixnum
- *  
+ *
  *  Returns the minor part of <code>File_Stat#dev</code> or
  *  <code>nil</code>.
- *     
+ *
  *     File.stat("/dev/fd1").dev_minor   #=> 1
  *     File.stat("/dev/tty").dev_minor   #=> 0
  */
@@ -298,11 +298,11 @@ rb_stat_dev_minor(VALUE self)
 /*
  *  call-seq:
  *     stat.ino   => fixnum
- *  
+ *
  *  Returns the inode number for <i>stat</i>.
- *     
+ *
  *     File.stat("testfile").ino   #=> 1083669
- *     
+ *
  */
 
 static VALUE
@@ -318,11 +318,11 @@ rb_stat_ino(VALUE self)
 /*
  *  call-seq:
  *     stat.mode   => fixnum
- *  
+ *
  *  Returns an integer representing the permission bits of
  *  <i>stat</i>. The meaning of the bits is platform dependent; on
  *  Unix systems, see <code>stat(2)</code>.
- *     
+ *
  *     File.chmod(0644, "testfile")   #=> 1
  *     s = File.stat("testfile")
  *     sprintf("%o", s.mode)          #=> "100644"
@@ -337,13 +337,13 @@ rb_stat_mode(VALUE self)
 /*
  *  call-seq:
  *     stat.nlink   => fixnum
- *  
+ *
  *  Returns the number of hard links to <i>stat</i>.
- *     
+ *
  *     File.stat("testfile").nlink             #=> 1
  *     File.link("testfile", "testfile.bak")   #=> 0
  *     File.stat("testfile").nlink             #=> 2
- *     
+ *
  */
 
 static VALUE
@@ -356,11 +356,11 @@ rb_stat_nlink(VALUE self)
 /*
  *  call-seq:
  *     stat.uid    => fixnum
- *  
+ *
  *  Returns the numeric user id of the owner of <i>stat</i>.
- *     
+ *
  *     File.stat("testfile").uid   #=> 501
- *     
+ *
  */
 
 static VALUE
@@ -372,11 +372,11 @@ rb_stat_uid(VALUE self)
 /*
  *  call-seq:
  *     stat.gid   => fixnum
- *  
+ *
  *  Returns the numeric group id of the owner of <i>stat</i>.
- *     
+ *
  *     File.stat("testfile").gid   #=> 500
- *     
+ *
  */
 
 static VALUE
@@ -389,11 +389,11 @@ rb_stat_gid(VALUE self)
 /*
  *  call-seq:
  *     stat.rdev   =>  fixnum or nil
- *  
+ *
  *  Returns an integer representing the device type on which
  *  <i>stat</i> resides. Returns <code>nil</code> if the operating
  *  system doesn't support this feature.
- *     
+ *
  *     File.stat("/dev/fd1").rdev   #=> 513
  *     File.stat("/dev/tty").rdev   #=> 1280
  */
@@ -411,10 +411,10 @@ rb_stat_rdev(VALUE self)
 /*
  *  call-seq:
  *     stat.rdev_major   => fixnum
- *  
+ *
  *  Returns the major part of <code>File_Stat#rdev</code> or
  *  <code>nil</code>.
- *     
+ *
  *     File.stat("/dev/fd1").rdev_major   #=> 2
  *     File.stat("/dev/tty").rdev_major   #=> 5
  */
@@ -433,10 +433,10 @@ rb_stat_rdev_major(VALUE self)
 /*
  *  call-seq:
  *     stat.rdev_minor   => fixnum
- *  
+ *
  *  Returns the minor part of <code>File_Stat#rdev</code> or
  *  <code>nil</code>.
- *     
+ *
  *     File.stat("/dev/fd1").rdev_minor   #=> 1
  *     File.stat("/dev/tty").rdev_minor   #=> 0
  */
@@ -455,9 +455,9 @@ rb_stat_rdev_minor(VALUE self)
 /*
  *  call-seq:
  *     stat.size    => fixnum
- *  
+ *
  *  Returns the size of <i>stat</i> in bytes.
- *     
+ *
  *     File.stat("testfile").size   #=> 66
  */
 
@@ -470,12 +470,12 @@ rb_stat_size(VALUE self)
 /*
  *  call-seq:
  *     stat.blksize   => integer or nil
- *  
+ *
  *  Returns the native file system's block size. Will return <code>nil</code>
  *  on platforms that don't support this information.
- *     
+ *
  *     File.stat("testfile").blksize   #=> 4096
- *     
+ *
  */
 
 static VALUE
@@ -491,11 +491,11 @@ rb_stat_blksize(VALUE self)
 /*
  *  call-seq:
  *     stat.blocks    => integer or nil
- *  
+ *
  *  Returns the number of native file system blocks allocated for this
- *  file, or <code>nil</code> if the operating system doesn't 
+ *  file, or <code>nil</code> if the operating system doesn't
  *  support this feature.
- *     
+ *
  *     File.stat("testfile").blocks   #=> 2
  */
 
@@ -584,12 +584,12 @@ stat_ctime(struct stat *st)
 /*
  *  call-seq:
  *     stat.atime   => time
- *  
+ *
  *  Returns the last access time for this file as an object of class
  *  <code>Time</code>.
- *     
+ *
  *     File.stat("testfile").atime   #=> Wed Dec 31 18:00:00 CST 1969
- *     
+ *
  */
 
 static VALUE
@@ -601,11 +601,11 @@ rb_stat_atime(VALUE self)
 /*
  *  call-seq:
  *     stat.mtime -> aTime
- *  
+ *
  *  Returns the modification time of <i>stat</i>.
- *     
+ *
  *     File.stat("testfile").mtime   #=> Wed Apr 09 08:53:14 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -617,13 +617,13 @@ rb_stat_mtime(VALUE self)
 /*
  *  call-seq:
  *     stat.ctime -> aTime
- *  
+ *
  *  Returns the change time for <i>stat</i> (that is, the time
  *  directory information about the file was changed, not the file
  *  itself).
- *     
+ *
  *     File.stat("testfile").ctime   #=> Wed Apr 09 08:53:14 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -639,10 +639,10 @@ rb_stat_ctime(VALUE self)
  * Produce a nicely formatted description of <i>stat</i>.
  *
  *   File.stat("/etc/passwd").inspect
- *      #=> "#<File::Stat dev=0xe000005, ino=1078078, mode=0100644, 
- *      #    nlink=1, uid=0, gid=0, rdev=0x0, size=1374, blksize=4096, 
- *      #    blocks=8, atime=Wed Dec 10 10:16:12 CST 2003, 
- *      #    mtime=Fri Sep 12 15:41:41 CDT 2003, 
+ *      #=> "#<File::Stat dev=0xe000005, ino=1078078, mode=0100644,
+ *      #    nlink=1, uid=0, gid=0, rdev=0x0, size=1374, blksize=4096,
+ *      #    blocks=8, atime=Wed Dec 10 10:16:12 CST 2003,
+ *      #    mtime=Fri Sep 12 15:41:41 CDT 2003,
  *      #    ctime=Mon Oct 27 11:20:27 CST 2003>"
  */
 
@@ -757,12 +757,12 @@ w32_io_info(VALUE *file, BY_HANDLE_FILE_INFORMATION *st)
 /*
  *  call-seq:
  *     File.stat(file_name)   =>  stat
- *  
+ *
  *  Returns a <code>File::Stat</code> object for the named file (see
  *  <code>File::Stat</code>).
- *     
+ *
  *     File.stat("testfile").mtime   #=> Tue Apr 08 12:58:04 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -782,16 +782,16 @@ rb_file_s_stat(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     ios.stat    => stat
- *  
+ *
  *  Returns status information for <em>ios</em> as an object of type
  *  <code>File::Stat</code>.
- *     
+ *
  *     f = File.new("testfile")
  *     s = f.stat
  *     "%o" % s.mode   #=> "100644"
  *     s.blksize       #=> 4096
  *     s.atime         #=> Wed Apr 09 08:53:54 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -811,15 +811,15 @@ rb_io_stat(VALUE obj)
 /*
  *  call-seq:
  *     File.lstat(file_name)   => stat
- *  
+ *
  *  Same as <code>File::stat</code>, but does not follow the last symbolic
  *  link. Instead, reports on the link itself.
- *     
+ *
  *     File.symlink("testfile", "link2test")   #=> 0
  *     File.stat("testfile").size              #=> 66
  *     File.lstat("link2test").size            #=> 8
  *     File.stat("link2test").size             #=> 66
- *     
+ *
  */
 
 static VALUE
@@ -843,10 +843,10 @@ rb_file_s_lstat(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     file.lstat   =>  stat
- *  
+ *
  *  Same as <code>IO#stat</code>, but does not follow the last symbolic
  *  link. Instead, reports on the link itself.
- *     
+ *
  *     File.symlink("testfile", "link2test")   #=> 0
  *     File.stat("testfile").size              #=> 66
  *     f = File.new("link2test")
@@ -962,7 +962,7 @@ eaccess(const char *path, int mode)
  *  those used in <code>File::Stat</code>. It exists as a standalone
  *  module, and its methods are also insinuated into the <code>File</code>
  *  class. (Note that this is not done by inclusion: the interpreter cheats).
- *     
+ *
  */
 
 
@@ -1226,7 +1226,7 @@ rb_file_readable_real_p(VALUE obj, VALUE fname)
  * representing the file permission bits of <i>file_name</i>. Returns
  * <code>nil</code> otherwise. The meaning of the bits is platform
  * dependent; on Unix systems, see <code>stat(2)</code>.
- *     
+ *
  *    File.world_readable?("/etc/passwd")	    # => 420
  *    m = File.world_readable?("/etc/passwd")
  *    sprintf("%o", m)				    # => "644"
@@ -1288,7 +1288,7 @@ rb_file_writable_real_p(VALUE obj, VALUE fname)
  * representing the file permission bits of <i>file_name</i>. Returns
  * <code>nil</code> otherwise. The meaning of the bits is platform
  * dependent; on Unix systems, see <code>stat(2)</code>.
- *     
+ *
  *    File.world_writable?("/tmp")		    #=> 511
  *    m = File.world_writable?("/tmp")
  *    sprintf("%o", m)				    #=> "777"
@@ -1642,13 +1642,13 @@ rb_file_ftype(const struct stat *st)
 /*
  *  call-seq:
  *     File.ftype(file_name)   => string
- *  
+ *
  *  Identifies the type of the named file; the return string is one of
  *  ``<code>file</code>'', ``<code>directory</code>'',
  *  ``<code>characterSpecial</code>'', ``<code>blockSpecial</code>'',
  *  ``<code>fifo</code>'', ``<code>link</code>'',
  *  ``<code>socket</code>'', or ``<code>unknown</code>''.
- *     
+ *
  *     File.ftype("testfile")            #=> "file"
  *     File.ftype("/dev/tty")            #=> "characterSpecial"
  *     File.ftype("/tmp/.X11-unix/X0")   #=> "socket"
@@ -1671,11 +1671,11 @@ rb_file_s_ftype(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     File.atime(file_name)  =>  time
- *  
+ *
  *  Returns the last access time for the named file as a Time object).
- *     
+ *
  *     File.atime("testfile")   #=> Wed Apr 09 08:51:48 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -1693,12 +1693,12 @@ rb_file_s_atime(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     file.atime    => time
- *  
+ *
  *  Returns the last access time (a <code>Time</code> object)
  *   for <i>file</i>, or epoch if <i>file</i> has not been accessed.
- *     
+ *
  *     File.new("testfile").atime   #=> Wed Dec 31 18:00:00 CST 1969
- *     
+ *
  */
 
 static VALUE
@@ -1717,11 +1717,11 @@ rb_file_atime(VALUE obj)
 /*
  *  call-seq:
  *     File.mtime(file_name)  =>  time
- *  
+ *
  *  Returns the modification time for the named file as a Time object.
- *     
+ *
  *     File.mtime("testfile")   #=> Tue Apr 08 12:58:04 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -1739,11 +1739,11 @@ rb_file_s_mtime(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     file.mtime -> time
- *  
+ *
  *  Returns the modification time for <i>file</i>.
- *     
+ *
  *     File.new("testfile").mtime   #=> Wed Apr 09 08:53:14 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -1762,13 +1762,13 @@ rb_file_mtime(VALUE obj)
 /*
  *  call-seq:
  *     File.ctime(file_name)  => time
- *  
+ *
  *  Returns the change time for the named file (the time at which
  *  directory information about the file was changed, not the file
  *  itself).
- *     
+ *
  *     File.ctime("testfile")   #=> Wed Apr 09 08:53:13 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -1786,12 +1786,12 @@ rb_file_s_ctime(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     file.ctime -> time
- *  
+ *
  *  Returns the change time for <i>file</i> (that is, the time directory
  *  information about the file was changed, not the file itself).
- *     
+ *
  *     File.new("testfile").ctime   #=> Wed Apr 09 08:53:14 CDT 2003
- *     
+ *
  */
 
 static VALUE
@@ -1817,13 +1817,13 @@ chmod_internal(const char *path, void *mode)
 /*
  *  call-seq:
  *     File.chmod(mode_int, file_name, ... ) -> integer
- *  
+ *
  *  Changes permission bits on the named file(s) to the bit pattern
  *  represented by <i>mode_int</i>. Actual effects are operating system
  *  dependent (see the beginning of this section). On Unix systems, see
  *  <code>chmod(2)</code> for details. Returns the number of files
  *  processed.
- *     
+ *
  *     File.chmod(0644, "testfile", "out")   #=> 2
  */
 
@@ -1846,12 +1846,12 @@ rb_file_s_chmod(int argc, VALUE *argv)
 /*
  *  call-seq:
  *     file.chmod(mode_int)   => 0
- *  
+ *
  *  Changes permission bits on <i>file</i> to the bit pattern
  *  represented by <i>mode_int</i>. Actual effects are platform
  *  dependent; on Unix systems, see <code>chmod(2)</code> for details.
  *  Follows symbolic links. Also see <code>File#lchmod</code>.
- *     
+ *
  *     f = File.new("out", "w");
  *     f.chmod(0644)   #=> 0
  */
@@ -1889,11 +1889,11 @@ lchmod_internal(const char *path, void *mode)
 /*
  *  call-seq:
  *     File.lchmod(mode_int, file_name, ...)  => integer
- *  
+ *
  *  Equivalent to <code>File::chmod</code>, but does not follow symbolic
  *  links (so it will change the permissions associated with the link,
  *  not the file referenced by the link). Often not available.
- *     
+ *
  */
 
 static VALUE
@@ -1935,16 +1935,16 @@ chown_internal(const char *path, void *arg)
 /*
  *  call-seq:
  *     File.chown(owner_int, group_int, file_name,... ) -> integer
- *  
+ *
  *  Changes the owner and group of the named file(s) to the given
  *  numeric owner and group id's. Only a process with superuser
  *  privileges may change the owner of a file. The current owner of a
  *  file may change the file's group to any group to which the owner
  *  belongs. A <code>nil</code> or -1 owner or group id is ignored.
  *  Returns the number of files processed.
- *     
+ *
  *     File.chown(nil, 100, "testfile")
- *     
+ *
  */
 
 static VALUE
@@ -1976,16 +1976,16 @@ rb_file_s_chown(int argc, VALUE *argv)
 /*
  *  call-seq:
  *     file.chown(owner_int, group_int )   => 0
- *  
+ *
  *  Changes the owner and group of <i>file</i> to the given numeric
  *  owner and group id's. Only a process with superuser privileges may
  *  change the owner of a file. The current owner of a file may change
  *  the file's group to any group to which the owner belongs. A
  *  <code>nil</code> or -1 owner or group id is ignored. Follows
  *  symbolic links. See also <code>File#lchown</code>.
- *     
+ *
  *     File.new("testfile").chown(502, 1000)
- *     
+ *
  */
 
 static VALUE
@@ -2023,12 +2023,12 @@ lchown_internal(const char *path, void *arg)
 /*
  *  call-seq:
  *     file.lchown(owner_int, group_int, file_name,..) => integer
- *  
+ *
  *  Equivalent to <code>File::chown</code>, but does not follow symbolic
  *  links (so it will change the owner associated with the link, not the
  *  file referenced by the link). Often not available. Returns number
  *  of files in the argument list.
- *     
+ *
  */
 
 static VALUE
@@ -2193,11 +2193,11 @@ sys_fail2(VALUE s1, VALUE s2)
 /*
  *  call-seq:
  *     File.link(old_name, new_name)    => 0
- *  
+ *
  *  Creates a new name for an existing file using a hard link. Will not
  *  overwrite <i>new_name</i> if it already exists (raising a subclass
  *  of <code>SystemCallError</code>). Not available on all platforms.
- *     
+ *
  *     File.link("testfile", ".testfile")   #=> 0
  *     IO.readlines(".testfile")[0]         #=> "This is line one\n"
  */
@@ -2223,13 +2223,13 @@ rb_file_s_link(VALUE klass, VALUE from, VALUE to)
 /*
  *  call-seq:
  *     File.symlink(old_name, new_name)   => 0
- *  
+ *
  *  Creates a symbolic link called <i>new_name</i> for the existing file
  *  <i>old_name</i>. Raises a <code>NotImplemented</code> exception on
  *  platforms that do not support symbolic links.
- *     
+ *
  *     File.symlink("testfile", "link2test")   #=> 0
- *     
+ *
  */
 
 static VALUE
@@ -2253,10 +2253,10 @@ rb_file_s_symlink(VALUE klass, VALUE from, VALUE to)
 /*
  *  call-seq:
  *     File.readlink(link_name) -> file_name
- *  
+ *
  *  Returns the name of the file referenced by the given link.
  *  Not available on all platforms.
- *     
+ *
  *     File.symlink("testfile", "link2test")   #=> 0
  *     File.readlink("link2test")              #=> "testfile"
  */
@@ -2306,7 +2306,7 @@ unlink_internal(const char *path, void *arg)
  *  call-seq:
  *     File.delete(file_name, ...)  => integer
  *     File.unlink(file_name, ...)  => integer
- *  
+ *
  *  Deletes the named files, returning the number of names
  *  passed as arguments. Raises an exception on any error.
  *  See also <code>Dir::rmdir</code>.
@@ -2325,10 +2325,10 @@ rb_file_s_unlink(VALUE klass, VALUE args)
 /*
  *  call-seq:
  *     File.rename(old_name, new_name)   => 0
- *  
+ *
  *  Renames the given file to the new name. Raises a
  *  <code>SystemCallError</code> if the file cannot be renamed.
- *     
+ *
  *     File.rename("afile", "afile.bak")   #=> 0
  */
 
@@ -2368,13 +2368,13 @@ rb_file_s_rename(VALUE klass, VALUE from, VALUE to)
  *  call-seq:
  *     File.umask()          => integer
  *     File.umask(integer)   => integer
- *  
+ *
  *  Returns the current umask value for this process. If the optional
  *  argument is given, set the umask to that value and return the
  *  previous value. Umask values are <em>subtracted</em> from the
  *  default permissions, so a umask of <code>0222</code> would make a
  *  file read-only for everyone.
- *     
+ *
  *     File.umask(0006)   #=> 18
  *     File.umask         #=> 6
  */
@@ -2409,11 +2409,13 @@ rb_file_s_umask(int argc, VALUE *argv)
 #define isdirsep(x) ((x) == '/')
 #endif
 
+#ifndef USE_NTFS
 #if defined _WIN32 || defined __CYGWIN__
 #define USE_NTFS 1
 #else
 #define USE_NTFS 0
 #endif
+#endif
 
 #if USE_NTFS
 #define istrailinggabage(x) ((x) == '.' || (x) == ' ')
@@ -2485,7 +2487,7 @@ rb_path_next(const char *s)
     return (char *)s;
 }
 
-#if defined(DOSISH_UNC) || defined(DOSISH_DRIVE_LETTER) 
+#if defined(DOSISH_UNC) || defined(DOSISH_DRIVE_LETTER)
 #define skipprefix rb_path_skip_prefix
 #else
 #define skipprefix(path) (path)
@@ -2493,7 +2495,7 @@ rb_path_next(const char *s)
 char *
 rb_path_skip_prefix(const char *path)
 {
-#if defined(DOSISH_UNC) || defined(DOSISH_DRIVE_LETTER) 
+#if defined(DOSISH_UNC) || defined(DOSISH_DRIVE_LETTER)
 #ifdef DOSISH_UNC
     if (isdirsep(path[0]) && isdirsep(path[1])) {
 	path += 2;
@@ -2851,7 +2853,7 @@ file_expand_path(VALUE fname, VALUE dname, int abs_mode, VALUE result)
     }
     if (p == skiproot(buf) - 1) p++;
 
-#if USE_NTFS
+#if USE_NTFS && defined __WIN32__
     *p = '\0';
     if ((s = strrdirsep(b = buf)) != 0 && !strpbrk(s, "*?")) {
 	size_t len;
@@ -2919,7 +2921,7 @@ rb_file_expand_path(VALUE fname, VALUE dname)
 /*
  *  call-seq:
  *     File.expand_path(file_name [, dir_string] ) -> abs_file_name
- *  
+ *
  *  Converts a pathname to an absolute pathname. Relative paths are
  *  referenced from the current working directory of the process unless
  *  <i>dir_string</i> is given, in which case it will be used as the
@@ -2928,7 +2930,7 @@ rb_file_expand_path(VALUE fname, VALUE dname)
  *  directory (the environment variable <code>HOME</code> must be set
  *  correctly). ``<code>~</code><i>user</i>'' expands to the named
  *  user's home directory.
- *     
+ *
  *     File.expand_path("~oracle/bin")           #=> "/home/oracle/bin"
  *     File.expand_path("../../bin", "/tmp/x")   #=> "/bin"
  */
@@ -2955,13 +2957,13 @@ rb_file_absolute_path(VALUE fname, VALUE dname)
 /*
  *  call-seq:
  *     File.absolute_path(file_name [, dir_string] ) -> abs_file_name
- *  
+ *
  *  Converts a pathname to an absolute pathname. Relative paths are
  *  referenced from the current working directory of the process unless
  *  <i>dir_string</i> is given, in which case it will be used as the
  *  starting point. If the given pathname starts with a ``<code>~</code>''
  *  it is NOT expanded, it is treated as a normal directory name.
- *     
+ *
  *     File.absolute_path("~oracle/bin")       #=> "<relative_path>/~oracle/bin"
  */
 
@@ -3013,13 +3015,13 @@ rmext(const char *p, int l1, const char *e)
 /*
  *  call-seq:
  *     File.basename(file_name [, suffix] ) -> base_name
- *  
+ *
  *  Returns the last component of the filename given in <i>file_name</i>,
  *  which must be formed using forward slashes (``<code>/</code>'')
  *  regardless of the separator used on the local file system. If
  *  <i>suffix</i> is given and present at the end of <i>file_name</i>,
  *  it is removed.
- *     
+ *
  *     File.basename("/home/gumby/work/ruby.rb")          #=> "ruby.rb"
  *     File.basename("/home/gumby/work/ruby.rb", ".rb")   #=> "ruby"
  */
@@ -3092,12 +3094,12 @@ rb_file_s_basename(int argc, VALUE *argv)
 /*
  *  call-seq:
  *     File.dirname(file_name ) -> dir_name
- *  
+ *
  *  Returns all components of the filename given in <i>file_name</i>
  *  except the last one. The filename must be formed using forward
  *  slashes (``<code>/</code>'') regardless of the separator used on the
  *  local file system.
- *     
+ *
  *     File.dirname("/home/gumby/work/ruby.rb")   #=> "/home/gumby/work"
  */
 
@@ -3144,15 +3146,15 @@ rb_file_s_dirname(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     File.extname(path) -> string
- *  
+ *
  *  Returns the extension (the portion of file name in <i>path</i>
  *  after the period).
- *     
+ *
  *     File.extname("test.rb")         #=> ".rb"
  *     File.extname("a/b/d/test.rb")   #=> ".rb"
  *     File.extname("test")            #=> ""
  *     File.extname(".profile")        #=> ""
- *     
+ *
  */
 
 static VALUE
@@ -3209,12 +3211,12 @@ rb_file_s_extname(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     File.path(path) -> string
- *  
+ *
  *  Returns the string representation of the path
- * 
+ *
  *     File.path("/dev/null")          #=> "/dev/null"
  *     File.path(Pathname.new("/tmp")) #=> "/tmp"
- *     
+ *
  */
 
 static VALUE
@@ -3226,11 +3228,11 @@ rb_file_s_path(VALUE klass, VALUE fname)
 /*
  *  call-seq:
  *     File.split(file_name)   => array
- *  
+ *
  *  Splits the given string into a directory and a file component and
  *  returns them in a two-element array. See also
  *  <code>File::dirname</code> and <code>File::basename</code>.
- *     
+ *
  *     File.split("/home/gumby/.profile")   #=> ["/home/gumby", ".profile"]
  */
 
@@ -3313,12 +3315,12 @@ rb_file_join(VALUE ary, VALUE sep)
 /*
  *  call-seq:
  *     File.join(string, ...) -> path
- *  
+ *
  *  Returns a new string formed by joining the strings using
  *  <code>File::SEPARATOR</code>.
- *     
+ *
  *     File.join("usr", "mail", "gumby")   #=> "usr/mail/gumby"
- *     
+ *
  */
 
 static VALUE
@@ -3330,16 +3332,16 @@ rb_file_s_join(VALUE klass, VALUE args)
 /*
  *  call-seq:
  *     File.truncate(file_name, integer)  => 0
- *  
+ *
  *  Truncates the file <i>file_name</i> to be at most <i>integer</i>
  *  bytes long. Not available on all platforms.
- *     
+ *
  *     f = File.new("out", "w")
  *     f.write("1234567890")     #=> 10
  *     f.close                   #=> nil
  *     File.truncate("out", 5)   #=> 0
  *     File.size("out")          #=> 5
- *     
+ *
  */
 
 static VALUE
@@ -3383,10 +3385,10 @@ rb_file_s_truncate(VALUE klass, VALUE path, VALUE len)
 /*
  *  call-seq:
  *     file.truncate(integer)    => 0
- *  
+ *
  *  Truncates <i>file</i> to at most <i>integer</i> bytes. The file
  *  must be opened for writing. Not available on all platforms.
- *     
+ *
  *     f = File.new("out", "w")
  *     f.syswrite("1234567890")   #=> 10
  *     f.truncate(5)              #=> 0
@@ -3459,13 +3461,13 @@ rb_thread_flock(void *data)
 /*
  *  call-seq:
  *     file.flock (locking_constant ) =>  0 or false
- *  
+ *
  *  Locks or unlocks a file according to <i>locking_constant</i> (a
  *  logical <em>or</em> of the values in the table below).
  *  Returns <code>false</code> if <code>File::LOCK_NB</code> is
  *  specified and the operation would otherwise have blocked. Not
  *  available on all platforms.
- *     
+ *
  *  Locking constants (in class File):
  *
  *     LOCK_EX   | Exclusive lock. Only one process may hold an
@@ -3482,7 +3484,7 @@ rb_thread_flock(void *data)
  *  Example:
  *
  *     File.new("testfile").flock(File::LOCK_UN)   #=> 0
- *     
+ *
  */
 
 static VALUE
@@ -3552,11 +3554,11 @@ test_check(int n, int argc, VALUE *argv)
 /*
  *  call-seq:
  *     test(int_cmd, file1 [, file2] ) => obj
- *  
+ *
  *  Uses the integer <i>aCmd</i> to perform various tests on
  *  <i>file1</i> (first table below) or on <i>file1</i> and
  *  <i>file2</i> (second table).
- *     
+ *
  *  File tests on a single file:
  *
  *    Test   Returns   Meaning
@@ -3574,7 +3576,7 @@ test_check(int n, int argc, VALUE *argv)
  *     ?k  | boolean | True if file1 exists and has the sticky bit set
  *     ?l  | boolean | True if file1 exists and is a symbolic link
  *     ?M  | Time    | Last modification time for file1
- *     ?o  | boolean | True if file1 exists and is owned by 
+ *     ?o  | boolean | True if file1 exists and is owned by
  *         |         | the caller's effective uid
  *     ?O  | boolean | True if file1 exists and is owned by
  *         |         | the caller's real uid
@@ -3825,15 +3827,15 @@ rb_stat_init_copy(VALUE copy, VALUE orig)
 /*
  *  call-seq:
  *     stat.ftype   => string
- *  
+ *
  *  Identifies the type of <i>stat</i>. The return string is one of:
  *  ``<code>file</code>'', ``<code>directory</code>'',
  *  ``<code>characterSpecial</code>'', ``<code>blockSpecial</code>'',
  *  ``<code>fifo</code>'', ``<code>link</code>'',
  *  ``<code>socket</code>'', or ``<code>unknown</code>''.
- *     
+ *
  *     File.stat("/dev/tty").ftype   #=> "characterSpecial"
- *     
+ *
  */
 
 static VALUE
@@ -3845,10 +3847,10 @@ rb_stat_ftype(VALUE obj)
 /*
  *  call-seq:
  *     stat.directory?   => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is a directory,
  *  <code>false</code> otherwise.
- *     
+ *
  *     File.stat("testfile").directory?   #=> false
  *     File.stat(".").directory?          #=> true
  */
@@ -3863,7 +3865,7 @@ rb_stat_d(VALUE obj)
 /*
  *  call-seq:
  *     stat.pipe?    => true or false
- *  
+ *
  *  Returns <code>true</code> if the operating system supports pipes and
  *  <i>stat</i> is a pipe; <code>false</code> otherwise.
  */
@@ -3881,18 +3883,18 @@ rb_stat_p(VALUE obj)
 /*
  *  call-seq:
  *     stat.symlink?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is a symbolic link,
  *  <code>false</code> if it isn't or if the operating system doesn't
  *  support this feature. As <code>File::stat</code> automatically
  *  follows symbolic links, <code>symlink?</code> will always be
  *  <code>false</code> for an object returned by
  *  <code>File::stat</code>.
- *     
+ *
  *     File.symlink("testfile", "alink")   #=> 0
  *     File.stat("alink").symlink?         #=> false
  *     File.lstat("alink").symlink?        #=> true
- *     
+ *
  */
 
 static VALUE
@@ -3907,13 +3909,13 @@ rb_stat_l(VALUE obj)
 /*
  *  call-seq:
  *     stat.socket?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is a socket,
  *  <code>false</code> if it isn't or if the operating system doesn't
  *  support this feature.
- *     
+ *
  *     File.stat("testfile").socket?   #=> false
- *     
+ *
  */
 
 static VALUE
@@ -3929,14 +3931,14 @@ rb_stat_S(VALUE obj)
 /*
  *  call-seq:
  *     stat.blockdev?   => true or false
- *  
+ *
  *  Returns <code>true</code> if the file is a block device,
  *  <code>false</code> if it isn't or if the operating system doesn't
  *  support this feature.
- *     
+ *
  *     File.stat("testfile").blockdev?    #=> false
  *     File.stat("/dev/hda1").blockdev?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -3952,13 +3954,13 @@ rb_stat_b(VALUE obj)
 /*
  *  call-seq:
  *     stat.chardev?    => true or false
- *  
+ *
  *  Returns <code>true</code> if the file is a character device,
  *  <code>false</code> if it isn't or if the operating system doesn't
  *  support this feature.
- *     
+ *
  *     File.stat("/dev/tty").chardev?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -3972,13 +3974,13 @@ rb_stat_c(VALUE obj)
 /*
  *  call-seq:
  *     stat.owned?    => true or false
- *  
+ *
  *  Returns <code>true</code> if the effective user id of the process is
  *  the same as the owner of <i>stat</i>.
- *     
+ *
  *     File.stat("testfile").owned?      #=> true
  *     File.stat("/etc/passwd").owned?   #=> false
- *     
+ *
  */
 
 static VALUE
@@ -3998,13 +4000,13 @@ rb_stat_rowned(VALUE obj)
 /*
  *  call-seq:
  *     stat.grpowned?   => true or false
- *  
+ *
  *  Returns true if the effective group id of the process is the same as
  *  the group id of <i>stat</i>. On Windows NT, returns <code>false</code>.
- *     
+ *
  *     File.stat("testfile").grpowned?      #=> true
  *     File.stat("/etc/passwd").grpowned?   #=> false
- *     
+ *
  */
 
 static VALUE
@@ -4019,12 +4021,12 @@ rb_stat_grpowned(VALUE obj)
 /*
  *  call-seq:
  *     stat.readable?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is readable by the
  *  effective user id of this process.
- *     
+ *
  *     File.stat("testfile").readable?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -4054,12 +4056,12 @@ rb_stat_r(VALUE obj)
 /*
  *  call-seq:
  *     stat.readable_real? -> true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is readable by the real
  *  user id of this process.
- *     
+ *
  *     File.stat("testfile").readable_real?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -4092,7 +4094,7 @@ rb_stat_R(VALUE obj)
  * representing the file permission bits of <i>stat</i>. Returns
  * <code>nil</code> otherwise. The meaning of the bits is platform
  * dependent; on Unix systems, see <code>stat(2)</code>.
- *     
+ *
  *    m = File.stat("/etc/passwd").world_readable?  # => 420
  *    sprintf("%o", m)				    # => "644"
  */
@@ -4113,12 +4115,12 @@ rb_stat_wr(VALUE obj)
 /*
  *  call-seq:
  *     stat.writable? -> true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is writable by the
  *  effective user id of this process.
- *     
+ *
  *     File.stat("testfile").writable?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -4146,12 +4148,12 @@ rb_stat_w(VALUE obj)
 /*
  *  call-seq:
  *     stat.writable_real? -> true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is writable by the real
  *  user id of this process.
- *     
+ *
  *     File.stat("testfile").writable_real?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -4184,7 +4186,7 @@ rb_stat_W(VALUE obj)
  * representing the file permission bits of <i>stat</i>. Returns
  * <code>nil</code> otherwise. The meaning of the bits is platform
  * dependent; on Unix systems, see <code>stat(2)</code>.
- *     
+ *
  *    m = File.stat("/tmp").world_writable?	    # => 511
  *    sprintf("%o", m)				    # => "777"
  */
@@ -4205,14 +4207,14 @@ rb_stat_ww(VALUE obj)
 /*
  *  call-seq:
  *     stat.executable?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is executable or if the
  *  operating system doesn't distinguish executable files from
  *  nonexecutable files. The tests are made using the effective owner of
  *  the process.
- *     
+ *
  *     File.stat("testfile").executable?   #=> false
- *     
+ *
  */
 
 static VALUE
@@ -4242,7 +4244,7 @@ rb_stat_x(VALUE obj)
 /*
  *  call-seq:
  *     stat.executable_real?    => true or false
- *  
+ *
  *  Same as <code>executable?</code>, but tests using the real owner of
  *  the process.
  */
@@ -4275,12 +4277,12 @@ rb_stat_X(VALUE obj)
 /*
  *  call-seq:
  *     stat.file?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is a regular file (not
  *  a device file, pipe, socket, etc.).
- *     
+ *
  *     File.stat("testfile").file?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -4293,12 +4295,12 @@ rb_stat_f(VALUE obj)
 /*
  *  call-seq:
  *     stat.zero?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> is a zero-length file;
  *  <code>false</code> otherwise.
- *     
+ *
  *     File.stat("testfile").zero?   #=> false
- *     
+ *
  */
 
 static VALUE
@@ -4312,11 +4314,11 @@ rb_stat_z(VALUE obj)
 /*
  *  call-seq:
  *     state.size    => integer
- *  
+ *
  *  Returns the size of <i>stat</i> in bytes.
- *     
+ *
  *     File.stat("testfile").size   #=> 66
- *     
+ *
  */
 
 static VALUE
@@ -4331,11 +4333,11 @@ rb_stat_s(VALUE obj)
 /*
  *  call-seq:
  *     stat.setuid?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> has the set-user-id
  *  permission bit set, <code>false</code> if it doesn't or if the
  *  operating system doesn't support this feature.
- *     
+ *
  *     File.stat("/bin/su").setuid?   #=> true
  */
 
@@ -4351,13 +4353,13 @@ rb_stat_suid(VALUE obj)
 /*
  *  call-seq:
  *     stat.setgid?   => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> has the set-group-id
  *  permission bit set, <code>false</code> if it doesn't or if the
  *  operating system doesn't support this feature.
- *     
+ *
  *     File.stat("/usr/sbin/lpc").setgid?   #=> true
- *     
+ *
  */
 
 static VALUE
@@ -4372,13 +4374,13 @@ rb_stat_sgid(VALUE obj)
 /*
  *  call-seq:
  *     stat.sticky?    => true or false
- *  
+ *
  *  Returns <code>true</code> if <i>stat</i> has its sticky bit set,
  *  <code>false</code> if it doesn't or if the operating system doesn't
  *  support this feature.
- *     
+ *
  *     File.stat("testfile").sticky?   #=> false
- *     
+ *
  */
 
 static VALUE
@@ -4652,7 +4654,7 @@ define_filetest_function(const char *name, VALUE (*func)(ANYARGS), int argc)
  *  <code>File</code> includes the methods of module
  *  <code>FileTest</code> as class methods, allowing you to write (for
  *  example) <code>File.exist?("foo")</code>.
- *     
+ *
  *  In the description of File methods,
  *  <em>permission bits</em> are a platform-specific
  *  set of bits that indicate permissions of a file. On Unix-based
@@ -4660,7 +4662,7 @@ define_filetest_function(const char *name, VALUE (*func)(ANYARGS), int argc)
  *  owner, the group, and the rest of the world. For each of these
  *  entities, permissions may be set to read, write, or execute the
  *  file:
- *     
+ *
  *  The permission bits <code>0644</code> (in octal) would thus be
  *  interpreted as read/write for owner, and read-only for group and
  *  other. Higher-order bits may also be used to indicate the type of
@@ -4668,7 +4670,7 @@ define_filetest_function(const char *name, VALUE (*func)(ANYARGS), int argc)
  *  special features. If the permissions are for a directory, the
  *  meaning of the execute bit changes; when set the directory can be
  *  searched.
- *     
+ *
  *  On non-Posix operating systems, there may be only the ability to
  *  make a file read-only or read-write. In this case, the remaining
  *  permission bits will be synthesized to resemble typical values. For