[DOC]


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* file.c: newly added a class File::Statfs. (experimental)

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show what filesystem it is on failure

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fix typo

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refix the point is seek

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fix a typo

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check statfs and skip

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define File::Statfs only if HAVE_STRUCT_STATFS

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* file.c (rb_io_statfs): need to define even if the system doesn't have
  fstatfs(2).

* test/ruby/test_file.rb (TestFile#test_statfs): skip if IO#stafs is not
  implemented.


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file.c: suppress a warning

* file.c (statfs_fsid): use union to suppress strict-aliasing
  warning.

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stringio.c: use rb_str_append

* ext/stringio/stringio.c (strio_write): use rb_str_append to
  reuse coderange bits and keep taintedness.
  [ruby-dev:48118] [Bug #9769]

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* file.c (rb_io_stafs): use statfs(2) if fstatfs(2) is unavailable.

* configure.in (fstatfs): check it.


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* win32/win32.c, include/ruby/win32.h (ustatfs): implementation of
  statfs(2) clone. [EXPERIMENTAL]

* file.c (rb_io_statfs): use above function.

* configure.in, win32/Makefile.sub (struct statfs): available.


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* 2014-04-23

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Revert r45670 "stringio.c: use rb_str_append"

It breaks test-all.
http://u64b.rubyci.org/~chkbuild/ruby-trunk/log/20140422T143301Z.diff.html.gz

rb_str_conv_enc() return original string for example when
from ASCII-8BIT to UTF-8 with non ASCII strings

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ruby-additional.el: ruby-encode-unicode

* misc/ruby-additional.el (ruby-encode-unicode): convert non-ascii
  string to \\u{} form.

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stringio.c: move GC guard

* ext/stringio/stringio.c (strio_write): move GC guard after the
  last using position.

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stringio.c: use rb_str_append other than ASCII-8BIT

* ext/stringio/stringio.c (strio_write): use rb_str_append to
  reuse coderange bits other than ASCII-8BIT, and keep
  taintedness.  [ruby-dev:48118] [Bug #9769]

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file.c: fsid_t may not be defined

* configure.in: check if fsid_t is defined.

* file.c (statfs_fsid): fsid_t may not be defined, assume long in
  that case.

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check whther ext4+ or not

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