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emacs/lib/fingerprint.h
2024-01-02 09:47:10 +08:00

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1.0 KiB
C

/* Header file for the Emacs build fingerprint.
Copyright (C) 2016, 2018-2024 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
#ifndef EMACS_FINGERPRINT_H
#define EMACS_FINGERPRINT_H
/* We generate fingerprint.c and fingerprint.o from all the sources in
Emacs. This way, we have a unique value that we can use to pair
data files (like a dump file) with a specific build of Emacs. */
extern volatile unsigned char fingerprint[32];
#endif