DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 528HE7GI1560947
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org BAB903858D1E
Message-ID: <d830003a-ce4e-47a1-9ba8-0a4ec5672f0d@gmail.com>
Date: Sat, 8 Mar 2025 18:13:01 +0100
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: mv error building LilyPond tests, maybe MAX_PATH related
To: cygwin AT cygwin DOT com
References: <CAPF+3FGs8YnUaa+EKnc=76=0=jECrLFPH866ExgNkyba8Kp_iQ AT mail DOT gmail DOT com>
 <bf01302d-aa70-4532-b1c8-169e13cd7b25 AT gmail DOT com>
Content-Language: en-US
In-Reply-To: <bf01302d-aa70-4532-b1c8-169e13cd7b25@gmail.com>
Precedence: list
From: Marco Atzeri via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

On 08/03/2025 11:39, Marco Atzeri wrote:
> On 08/03/2025 06:10, Saul Tobin via Cygwin wrote:
>> Hello,
>>

>>
>> Based on this, it appears to me that when an in-place rename is performed
>> by `mv`, it calls into a Win32 API that enforces the 260 character
>> MAX_PATH. I can see in the trace that the error is occurring within a 
>> Win32
>> call stack for resolving absolute path names, though the error code isn't
>> specific enough to distinguish the precise reason for the failure.
>>
>> I tried enabling LongPathsEnabled in the registry, but I get the same 
>> `mv`
>> error after doing so and rebooting.
>>

Hi Saul,

my experiment with "mv" breaks near 4090 path length
with "File name too long" and this in not the error
from lilypond build.

Moving a directory that contains 999 levels
and final path up to 8880 character is not a problem.

Regards
Marco


-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple