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#!/bin/sh
#
# Copyright (C) 1993 by Oliver Trepte.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted, provided
# that the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation. This software is provided "as is" without express or
# implied warranty.
# SOURCE_DATE_EPOCH is an environment variable as described here:
# https://reproducible-builds.org/specs/source-date-epoch/ on 2017.03.16.
SOURCE_DATE_OR_NONE=${SOURCE_DATE_EPOCH:-NONE}
NOW_FROM_DATE_PGM=$(date +%s)
if [ "$NOW_FROM_DATE_PGM" = "%s" ]; then
# This system's 'date' doesn't know %s. (Solaris 10 for example).
# Try Perl
BUILD_DATETIME=$(perl -e 'print time()')
else
BUILD_DATETIME=$NOW_FROM_DATE_PGM
fi
LOGNAME_OR_UNKNOWN=${LOGNAME:-UNKNOWN}
USER=${USER:-$LOGNAME_OR_UNKNOWN}
if [ "$USER" = "UNKNOWN" ]; then
USER=$(whoami)
fi
echo "/* This file tells some facts about the building of the package */"
echo "/* DO NOT EDIT - THIS FILE IS MAINTAINED AUTOMATICALLY */"
echo "/* Created by the program 'stamp-date' */"
if [ "$SOURCE_DATE_OR_NONE" != "NONE" ]; then
echo "#define SOURCE_DATETIME $SOURCE_DATE_OR_NONE"
fi
echo "#define BUILD_DATETIME $BUILD_DATETIME"
echo "#define COMPILED_BY \"$USER\""
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