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	Sat, 08 Mar 2025 09:13:03 -0800 (PST)
Message-ID:	<d830003a-ce4e-47a1-9ba8-0a4ec5672f0d@gmail.com>
Date:	Sat, 8 Mar 2025 18:13:01 +0100
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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>
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From:	Marco Atzeri via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>
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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




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