[#87847] undefined symbol: mjit_init_p — Leam Hall <leamhall@...>

I pulled Ruby trunk on 3 Jul and am now getting errors similar to the

10 messages 2018/07/07

[#88088] [Ruby trunk Misc#14937] [PATCH] thread_pthread: lazy-spawn timer-thread only on contention — normalperson@...

Issue #14937 has been reported by normalperson (Eric Wong).

9 messages 2018/07/24

[ruby-core:88145] [Ruby trunk Bug#14934] Unicode: Hangul normalize bug

From: duerst@...
Date: 2018-07-28 09:54:35 UTC
List: ruby-core #88145
Issue #14934 has been updated by duerst (Martin D端rst).


I committed the tests adapted from Python and the fix of the comparison operator, because it's technically correct and we never know when this would lead to an actual bug if something somewhere else in the code gets changed.

@MaLin, thanks again for the report, this helped me find another (real!) bug with file names fixed at r64085, and make an improvement at r64086. 

----------------------------------------
Bug #14934: Unicode: Hangul normalize bug
https://bugs.ruby-lang.org/issues/14934#change-73170

* Author: MaLin (Lin Ma)
* Status: Open
* Priority: Normal
* Assignee: duerst (Martin D端rst)
* Target version: 
* ruby -v: 
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
I was involved to fix a similar bug in Python, I found Ruby also has bug code.

We should fix this line[1] like this:
[1] https://github.com/ruby/ruby/blob/96db72ce38b27799dd8e80ca00696e41234db6ba/lib/unicode_normalize/normalize.rb#L73

-if length>2 and 0 <= (trail=string[2].ord-TBASE) and trail < TCOUNT
+if length>2 and 0 < (trail=string[2].ord-TBASE) and trail < TCOUNT

-------
There was a change of Unicode Standard's demonstration code.

Before Unicode 4.1.0 (draft), here is: TBase <= code <= TBase+TCount
see: http://www.unicode.org/reports/tr15/tr15-24.html#hangul_composition

After Unicode 4.1.0, here is TBase < code < TBase+TCount, which in line with Unicode 10.0
see: http://www.unicode.org/reports/tr15/tr15-25.html#hangul_composition

This change happened in 2005.

Please note: The normalize algorithm didn't changed, only the demonstration code changed, see this discussion[2] about this point.
[2] https://bugs.python.org/issue29456

-------
Here is some test code[3] for Python, maybe useful for this fix.
[3] https://github.com/python/cpython/commit/d134809cd3764c6a634eab7bb8995e3e2eff14d5



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