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To:	cygwin AT cygwin DOT com
From:	LRN <lrn1986 AT gmail DOT com>
Subject:	wcsxfrm() with empty locale crashes the runtime
Message-ID:	<02f956fa-e872-87ba-9ab0-f10afc494a02@gmail.com>
Date:	Tue, 19 Mar 2019 22:28:40 +0300
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From: LRN <lrn1986 AT gmail DOT com>
To: cygwin AT cygwin DOT com
Message-ID: <02f956fa-e872-87ba-9ab0-f10afc494a02 AT gmail DOT com>
Subject: wcsxfrm() with empty locale crashes the runtime


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The testcase is attached. Running it with Cygwin-i386 leads to a crash. My
guess is that the implementation is not POSIX-conformant and tries to
dereference the first argument (NULL), even though the third argument is 0.

Tested with Cygwin-3.0.4.

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