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Subject: Re: [BUG] Package mingw64-x86_64-icu is broken
To: cygwin AT cygwin DOT com
References: <df0243df-ca15-408b-a277-f0af7174d4c0 AT weilnetz DOT de> <63d2b80c-42ce-7aa2-dcb2-2fb5f821b96a AT weilnetz DOT de> <ebbb7826-5a4b-ee1e-7444-d30a0542203c AT gmail DOT com>
From: Stefan Weil <sw AT weilnetz DOT de>
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Date: Tue, 19 Jun 2018 12:18:27 +0200
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Am 19.06.2018 um 11:53 schrieb JonY:
> On 06/18/2018 12:12 PM, Stefan Weil wrote:
>> Am 06.06.2018 um 21:13 schrieb Stefan Weil:
>>> Both mingw64-x86_64-icu-57.1-1 and mingw64-x86_64-icu-57.1-2 are broken:
>>>
>>> This code always fails:
>>>
>>> icu::Normalizer2::getInstance(nullptr, "nfkc", UNORM2_COMPOSE, error_code);
>>>
>>> The problem was detected when comparing Tesseract for Windows
>>> executables: while the 32 bit version worked fine, the 64 bit version
>>> failed. The failure could be localized, and the mingw64-x86_64-icu
>>> package was identified to be causing it.
>>>
>>> https://github.com/tesseract-ocr/tesseract/issues/1625#issuecomment-395161152
>>> contains details and also a short test code which can be used to
>>> reproduce the problem.
>>>
>>> The 32 bit package mingw64-i686-icu-57.1-2 works fine.
>>>
>>> Kind regards
>>> Stefan Weil
>>
>> Ping. How can I help to get this issue fixed?
> 
> I noticed cygport is using llvm version of binutils, not sure if that
> broke things.
> 
> Was the issue there if you built it yourself with gcc/binutils?


No, a local build with x86_64-w64-mingw32-gcc works fine.
Tested with 57.1-2, but also with recent versions of icu.

A good indicator of a broken installation is a small icudata57.dll:

$ ls -l /usr/*/sys-root/mingw/bin/icudata57.dll
-rwxr-xr-x 1 25680896 Nov 10  2016
/usr/i686-w64-mingw32/sys-root/mingw/bin/icudata57.dll
-rwxr-xr-x 1    15872 Nov 10  2016
/usr/x86_64-w64-mingw32/sys-root/mingw/bin/icudata57.dll

The (good) file for 32 bit is much larger than the (broken) file for 64 bit.

Stefan


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