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-rw-r--r--src/src/version.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/src/version.c b/src/src/version.c
index 04a2d0733..f27cc3cde 100644
--- a/src/src/version.c
+++ b/src/src/version.c
@@ -40,6 +40,16 @@ version_cnumber_format = US"%d\0<<eximcnumber>>";
sprintf(CS version_cnumber, CS version_cnumber_format, cnumber);
version_string = US EXIM_VERSION_STR "\0<<eximversion>>";
+#ifdef EXIM_BUILD_DATE_OVERRIDE
+/* Reproducible build support; build tooling should have given us something looking like
+ * "25-Feb-2017 20:15:40" in EXIM_BUILD_DATE_OVERRIDE based on $SOURCE_DATE_EPOCH in environ
+ * per <https://reproducible-builds.org/specs/source-date-epoch/>
+ */
+version_date = date_buffer;
+version_date[0] = 0;
+Ustrncat(version_date, EXIM_BUILD_DATE_OVERRIDE, sizeof(date_buffer));
+
+#else
Ustrcpy(today, __DATE__);
if (today[4] == ' ') today[4] = '0';
today[3] = today[6] = '-';
@@ -51,6 +61,7 @@ Ustrncat(version_date, today, 4);
Ustrncat(version_date, today+7, 4);
Ustrcat(version_date, " ");
Ustrcat(version_date, __TIME__);
+#endif
}
/* End of version.c */