--- a/debian/patches/20_reproducible_build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/20_reproducible_build.patch	2018-05-30 22:15:16.685488898 +0100
@@ -0,0 +1,36 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2018-05-30
+
+--- sfepy-2018.1.orig/script/gen_term_table.py
++++ sfepy-2018.1/script/gen_term_table.py
+@@ -137,7 +137,8 @@ def typeset_term_table(fd, keys, table,
+     fd.write(''.join([newpage, label, '\n', '"' * len(label), '\n']))
+     fd.write(header % (title[0].upper() + title[1:]))
+ 
+-    sort_keys = [key[key.find('_'):] for key in keys]
++    # Add a secondary sort on the entire key to avoid collisions.
++    sort_keys = [(key[key.find('_'):] + key) for key in keys]
+     iis = nm.argsort(sort_keys)
+     for ii in iis:
+         key = keys[ii]
+--- sfepy-2018.1.orig/sfepy/solvers/ls.py
++++ sfepy-2018.1/sfepy/solvers/ls.py
+@@ -217,7 +217,7 @@ class ScipyIterative(LinearSolver):
+     _parameters = [
+         ('method', 'str', 'cg', False,
+          'The actual solver to use.'),
+-        ('setup_precond', 'callable', lambda mtx, context: None, False,
++        ('setup_precond', 'callable', None, False,
+          """User-supplied function for the preconditioner initialization/setup.
+             It is called as setup_precond(mtx, context), where mtx is the
+             matrix, context is a user-supplied context, and should return one
+@@ -432,7 +432,7 @@ class PyAMGKrylovSolver(LinearSolver):
+     _parameters = [
+         ('method', 'str', 'cg', False,
+          'The actual solver to use.'),
+-        ('setup_precond', 'callable', lambda mtx, context: None, False,
++        ('setup_precond', 'callable', None, False,
+          """User-supplied function for the preconditioner initialization/setup.
+             It is called as setup_precond(mtx, context), where mtx is the
+             matrix, context is a user-supplied context, and should return one
--- a/debian/patches/series	2018-05-30 21:35:13.463684964 +0100
--- b/debian/patches/series	2018-05-30 21:56:40.802946257 +0100
@@ -1 +1,2 @@
 10_remove_google_analytics.patch
+20_reproducible_build.patch