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Re: [feature/native-comp] breakage on build

From: Eli Zaretskii
Subject: Re: [feature/native-comp] breakage on build
Date: Sat, 30 Jan 2021 19:06:40 +0200

> Date: Sat, 30 Jan 2021 18:38:10 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: akrl@sdf.org, emacs-devel@gnu.org
>   compiling to 
> c:/msys64/home/Administrator/emacs-build/build/emacs-28.0.50-snapshot-feature_native-comp-windows/native-lisp/28.0.50-x86_64-w64-mingw32-3459bc949453c7833f94b407f8ee7c17/titdic-cnv-765ac3beca7090ba17f799d9600c18e6-a5dbcc84a969a94717512a079e1cc96a.eln
> The name of that file is suspiciously close to the 260-byte limit of
> file-name length that Win32 APIs support.  So my guess is that the
> temporary file had a few more characters (like the 6 characters which
> replace the XXXXXX, perhaps?), and that caused the failure.

Btw, Andrea: why do we need no less than 3 32-character hashes in that
file name?  With 26-byte limit on file names that libgccjit can use,
these 96 characters use up almost half of that space, and that will
bite us time and again down the road on MS-Windows.  Can we use just
one hash?

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