From 74dd02ea5d106d125877b16cd8b5712c5361714f Mon Sep 17 00:00:00 2001
From: Jan Szejko <janek37@gmail.com>
Date: Fri, 23 Nov 2018 14:03:58 +0100
Subject: [PATCH 1/1] fix for perl 5.26+

---
 librarian/epub.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/librarian/epub.py b/librarian/epub.py
index 8d4e73f..c802ec7 100644
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -675,12 +675,13 @@ def transform(wldoc, verbose=False, style=None, html_toc=False,
                               ''.join(chars).encode('utf-8'),
                               get_resource('fonts/' + fname),
                               os.path.join(tmpdir, fname)]
+            env = {"PERL_USE_UNSAFE_INC": "1"}
             if verbose:
                 print "Running font-optimizer"
-                subprocess.check_call(optimizer_call)
+                subprocess.check_call(optimizer_call, env=env)
             else:
                 dev_null = open(os.devnull, 'w')
-                subprocess.check_call(optimizer_call, stdout=dev_null, stderr=dev_null)
+                subprocess.check_call(optimizer_call, stdout=dev_null, stderr=dev_null, env=env)
             zip.write(os.path.join(tmpdir, fname), os.path.join('OPS', fname))
             manifest.append(etree.fromstring(
                 '<item id="%s" href="%s" media-type="application/x-font-truetype" />' % (fname, fname)))
-- 
2.20.1