--- a/debian/patches/reproducible_build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible_build.patch	2016-08-12 11:27:44.151656638 +0100
@@ -0,0 +1,56 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2016-08-12
+
+--- arj-3.10.22.orig/today.c
++++ arj-3.10.22/today.c
+@@ -9,6 +9,8 @@
+ #include "filemode.h"
+ 
+ #include <time.h>
++#include <errno.h>
++#include <limits.h>
+ 
+ /* Date array */
+ 
+@@ -25,7 +27,8 @@ int main(int argc, char **argv)
+  struct tm *stm;
+  FILE *stream;
+  int is_new=0;
+- char *p;
++ char *p, *source_date_epoch, *endptr;
++ unsigned long long epoch;
+  int l;
+ 
+  printf("TODAY v 1.22  [29/10/2000]  Not a part of any binary package!\n\n");
+@@ -46,6 +49,30 @@ int main(int argc, char **argv)
+  strcat(out_name, "date_sig.c");
+  cur_unixtime=time(NULL);
+  stm=localtime(&cur_unixtime);
++ source_date_epoch = getenv("SOURCE_DATE_EPOCH");
++ if (source_date_epoch) {
++  errno = 0;
++  epoch = strtoull(source_date_epoch, &endptr, 10);
++  if ((errno == ERANGE && (epoch == ULLONG_MAX || epoch == 0))
++    || (errno != 0 && epoch == 0)) {
++   fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: strtoull: %s\n", strerror(errno));
++   exit(EXIT_FAILURE);
++  }
++  if (endptr == source_date_epoch) {
++   fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: No digits were found: %s\n", endptr);
++   exit(EXIT_FAILURE);
++  }
++  if (*endptr != '\0') {
++   fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: Trailing garbage: %s\n", endptr);
++   exit(EXIT_FAILURE);
++  }
++  if (epoch > ULONG_MAX) {
++   fprintf(stderr, "Environment variable $SOURCE_DATE_EPOCH: value must be smaller than or equal to: %lu but was found to be: %llu \n", ULONG_MAX, epoch);
++   exit(EXIT_FAILURE);
++  }
++  cur_unixtime=epoch;
++  stm=gmtime(&cur_unixtime);
++ }
+  if(!stricmp(argv[1], "en"))
+   sprintf(date_sig, "[%02d %s %04d]", stm->tm_mday, months_en[stm->tm_mon], stm->tm_year+1900);
+  else if(!stricmp(argv[1], "fr"))
--- a/debian/patches/series	2016-08-12 11:16:59.490043322 +0100
--- b/debian/patches/series	2016-08-12 11:27:40.891628312 +0100
@@ -16,3 +16,4 @@
 security-traversal-dir.patch
 security-traversal-symlink.patch
 out-of-bounds-read.patch
+reproducible_build.patch