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diff -up texinfo-4.13/info/window.c_old texinfo-4.13/info/window.c
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--- texinfo-4.13/info/window.c_old	2009-08-04 13:46:15.000000000 +0200
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+++ texinfo-4.13/info/window.c	2009-08-04 13:47:29.000000000 +0200
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@@ -1581,7 +1581,7 @@ process_node_text (WINDOW *win, char *st
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       const char *carried_over_ptr;
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       size_t carried_over_len, carried_over_count;
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       const char *cur_ptr = mbi_cur_ptr (iter);
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-      int cur_len = mb_len (mbi_cur (iter));
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+      size_t cur_len = mb_len (mbi_cur (iter));
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       int replen;
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       int delim = 0;
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       int rc;
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@@ -1754,7 +1754,7 @@ clean_manpage (char *manpage)
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        mbi_advance (iter))
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     {
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       const char *cur_ptr = mbi_cur_ptr (iter);
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-      int cur_len = mb_len (mbi_cur (iter));
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+      size_t cur_len = mb_len (mbi_cur (iter));
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       if (cur_len == 1)
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 	{
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@@ -1852,8 +1852,8 @@ window_scan_line (WINDOW *win, int line,
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        mbi_advance (iter))
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     {
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       const char *cur_ptr = mbi_cur_ptr (iter);
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-      int cur_len = mb_len (mbi_cur (iter));
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-      int replen;
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+      size_t cur_len = mb_len (mbi_cur (iter));
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+      size_t replen;
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       if (cur_ptr >= endp)
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 	break;