--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2016-08-12 11:19:41.011452178 +0100
@@ -0,0 +1,30 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2016-08-12
+
+--- ruby-sigar-0.7.3.orig/Rakefile
++++ ruby-sigar-0.7.3/Rakefile
+@@ -35,9 +35,9 @@ spec = Gem::Specification.new do |s|
+     %w(LICENSE NOTICE README Rakefile version.properties) +
+     %w(bindings/SigarWrapper.pm bindings/SigarBuild.pm) +
+     `git ls-files -- bindings/ruby/*.*`.split("\n") +
+-    Dir.glob("include/*.h") +
+-    Dir.glob("src/**/*.[ch]") +
+-    Dir.glob("src/**/*.in")
++    Dir.glob("include/*.h").sort +
++    Dir.glob("src/**/*.[ch]").sort +
++    Dir.glob("src/**/*.in").sort
+ end
+ 
+ Gem::PackageTask.new(spec) do |pkg|
+--- ruby-sigar-0.7.3.orig/bindings/SigarBuild.pm
++++ ruby-sigar-0.7.3/bindings/SigarBuild.pm
+@@ -208,7 +208,7 @@ sub scm_revision {
+ }
+ 
+ sub build_date {
+-    return POSIX::strftime("%m/%d/%Y %I:%M %p", localtime);
++    return POSIX::strftime("%m/%d/%Y %I:%M %p", gmtime($ENV{SOURCE_DATE_EPOCH} || time));
+ }
+ 
+ sub find_file {
--- a/debian/patches/series	2016-08-12 11:14:16.484619767 +0100
--- b/debian/patches/series	2016-08-12 11:16:42.701896791 +0100
@@ -1,2 +1,3 @@
 mips-TIOCGETC-undeclared.patch
 gnu89-inline.diff
+reproducible-build.patch