From 1f264dc12ceedb874ee691d9143b254adde29e6d Mon Sep 17 00:00:00 2001
From: Chris Lamb <chris@chris-lamb.co.uk>
Date: Sat, 8 Feb 2020 16:32:14 +0000
Subject: [PATCH] Suggest sorting of extension sources to ensure a reproducible
 build regardless of filesystem ordering.

re. https://github.com/pikepdf/pikepdf/pull/76
---
 setup.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index 2721b96..72278d0 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,9 @@ class get_pybind_include(object):
 ext_modules = [
     Extension(
         'python_example',
-        ['src/main.cpp'],
+        # Sort input source files to ensure bit-for-bit reproducible builds
+        # (https://github.com/pybind/python_example/pull/53)
+        sorted(['src/main.cpp']),
         include_dirs=[
             # Path to pybind11 headers
             get_pybind_include(),