Source: aft
Version: 2:5.098-2
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: timestamps randomness
X-Debbugs-Cc: reproducible-builds@lists.alioth.debian.org

Hi,

While working on the "reproducible builds" effort [1], we have noticed
that aft could not be built reproducibly.

The attached patch removes timestamps and randomness from the build
system. Once applied, aft can be built reproducibly in our current
experimental framework.

 [1]: https://wiki.debian.org/ReproducibleBuilds


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      la...@debian.org / chris-lamb.co.uk
       `-
diff -urNad aft.orig/aft-5.098/compile.pl aft/aft-5.098/compile.pl
--- aft.orig/aft-5.098/compile.pl       2015-02-10 08:59:25.237512275 +0000
+++ aft/aft-5.098/compile.pl    2015-02-10 09:05:25.093653131 +0000
@@ -20,7 +20,7 @@
 my $postfilter;
 my $prefilter;
 
-$date = scalar localtime;
+$date = $ENV{'BUILD_DATE'} || scalar localtime;
 
 (@ARGV == 0) && do {
     print (STDERR "Usage: aft-compile element_file.dat \n");
@@ -129,13 +129,13 @@
 
 $interpolate = ($element{"interpolate"} =~ 'no') ? 0 : 1;
 print "\t\%pragma_postvar = (\n";
-foreach $item (keys %postvar) {
+foreach $item (sort keys %postvar) {
     print "\t\t'$item' =>\t '$postvar{$item}',\n";
 }
 print "\t);\n";
 
 print "\t\%elem = (\n";
-foreach $item  (keys %element) {
+foreach $item  (sort keys %element) {
   if ($element{$item} =~ /^\<Undefined/) {
     print (STDERR "Undefined element: [$item]\n");
   }
diff -urNad aft.orig/aft-5.098/debian/rules aft/aft-5.098/debian/rules
--- aft.orig/aft-5.098/debian/rules     2015-02-10 08:59:25.237512275 +0000
+++ aft/aft-5.098/debian/rules  2015-02-10 09:05:58.551154041 +0000
@@ -3,6 +3,8 @@
 # Uncomment this to turn on verbose mode.
 #export DH_VERBOSE=1
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 config.status: configure
        dh_testdir
        ./configure --prefix=/usr
@@ -11,7 +13,7 @@
 
 build-stamp:  config.status
        dh_testdir
-       $(MAKE)
+       $(MAKE) BUILD_DATE="$(BUILD_DATE)"
        touch build-stamp
 
 clean:
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