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diff --git glibc-2.17-c758a686/libio/wfileops.c glibc-2.17-c758a686/libio/wfileops.c
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index 87d3cdc..877fc1f 100644
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--- glibc-2.17-c758a686/libio/wfileops.c
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+++ glibc-2.17-c758a686/libio/wfileops.c
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@@ -715,7 +715,7 @@ _IO_wfile_seekoff (fp, offset, dir, mode)
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- fp->_wide_data->_IO_write_base) / clen;
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else
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{
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- enum __codecvt_result status;
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+ enum __codecvt_result status = __codecvt_ok;
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delta = (fp->_wide_data->_IO_write_ptr
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- fp->_wide_data->_IO_write_base);
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const wchar_t *write_base = fp->_wide_data->_IO_write_base;
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@@ -728,9 +728,12 @@ _IO_wfile_seekoff (fp, offset, dir, mode)
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flush buffers for every ftell. */
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do
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{
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- /* Ugh, no point trying to avoid the flush. Just do it
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- and go back to how it was with the read mode. */
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- if (delta > 0 && new_write_ptr == fp->_IO_buf_end)
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+ /* There is not enough space in the buffer to do the entire
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+ conversion, so there is no point trying to avoid the
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+ buffer flush. Just do it and go back to how it was with
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+ the read mode. */
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+ if (status == __codecvt_partial
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+ || (delta > 0 && new_write_ptr == fp->_IO_buf_end))
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{
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if (_IO_switch_to_wget_mode (fp))
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return WEOF;
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