gnu/packages/patches/perl-reproducible-build-date.patch

   1 Don't encode the current timestamp.
   2
   3 This affects the output of `perl -V`, specifically the message "Compiled
   4 at [...]".
   5
   6 The 'cf_time' and 'cf_by' values show up in 'config.h' and
   7 in 'Config_heavy.pl'.
   8
   9 Use the output of 'uname -s' instead of 'uname -a' to avoid recording
  10 the kernel version ('uname -o' leads to directory names like
  11 'x86_64-gnulinux' instead of 'x86_64-linux', which might cause breakage
  12 down the road.)
  13
  14 diff --git a/perl.c b/perl.c
  15 index 228a0d8..ed38313 100644
  16 --- a/perl.c
  17 +++ b/perl.c
  18 @@ -1825,6 +1825,7 @@ S_Internals_V(pTHX_ CV *cv)
  19      PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
  20                               sizeof(non_bincompat_options) - 1, SVs_TEMP));
  21
  22 +#define PERL_BUILD_DATE "Jan  1 1970 00:00:00"
  23  #ifndef PERL_BUILD_DATE
  24  #  ifdef __DATE__
  25  #    ifdef __TIME__
  26
  27 --- a/Configure 1970-01-01 01:00:00.000000000 +0100
  28 +++ b/Configure 2016-10-01 14:47:20.017319739 +0200
  29 @@ -3276,7 +3276,7 @@ $eunicefix tr
  30  : Try to determine whether config.sh was made on this system
  31  case "$config_sh" in
  32  '')
  33 -myuname=`$uname -a 2>/dev/null`
  34 +myuname=`$uname -s 2>/dev/null`
  35  $test -z "$myuname" && myuname=`hostname 2>/dev/null`
  36  # Downcase everything to avoid ambiguity.
  37  # Remove slashes and single quotes so we can use parts of this in
  38 @@ -3845,10 +3845,10 @@
  39  . ./posthint.sh
  40
  41  : who configured the system
  42 -cf_time=`LC_ALL=C; LANGUAGE=C; export LC_ALL; export LANGUAGE; $date 2>&1`
  43 +cf_time="1970-01-01"
  44  case "$cf_by" in
  45  "")
  46 -       cf_by=`(logname) 2>/dev/null`
  47 +       cf_by="guix"
  48         case "$cf_by" in
  49         "")
  50                 cf_by=`(whoami) 2>/dev/null`