Matej Cepl
78115bff94
OBS-URL: https://build.opensuse.org/package/show/Publishing/lout?expand=0&rev=21
33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
Author: Bernhard M. Wiedemann <bwiedemann+git@suse.de>
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Date: Wed Apr 9 12:08:01 2025 +0000
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Allow to override build date with SOURCE_DATE_EPOCH
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to make builds reproducible.
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See https://reproducible-builds.org/ for why this is good
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and https://reproducible-builds.org/specs/source-date-epoch/
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for the definition of this variable.
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This patch was done while working on reproducible builds for openSUSE.
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diff --git a/z35.c b/z35.c
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index 8adbec3..57cd5a0 100644
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--- a/z35.c
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+++ b/z35.c
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@@ -101,8 +101,13 @@ void InitTime(void)
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dst = load(KW_DAYLIGHTSAVING, NPAR, MomentSym);
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/* get current time and convert to ASCII */
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- if( time(&raw_time) == -1 )
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- Error(35, 1, "unable to obtain the current time", WARN, no_fpos);
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+ char *source_date_epoch;
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+ /* This assumes that the SOURCE_DATE_EPOCH environment variable will contain
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+ a correct, positive integer in the time_t range */
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+ if ((source_date_epoch = getenv("SOURCE_DATE_EPOCH")) == NULL ||
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+ (raw_time = (time_t)strtoll(source_date_epoch, NULL, 10)) <= 0)
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+ if( time(&raw_time) == -1 )
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+ Error(35, 1, "unable to obtain the current time", WARN, no_fpos);
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now = localtime(&raw_time);
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StringCopy(time_string, AsciiToFull(asctime(now)));
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time_string[StringLength(time_string) - 1] = '\0';
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