From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Fedora Python maintainers <python-devel@lists.fedoraproject.org>
Date: Wed, 15 Jul 2020 15:21:28 +0200
Subject: [PATCH] 00121-add-Modules-to-build-path.patch

Upstream r79310 removed the "Modules" directory from sys.path when Python is
running from the build directory on POSIX to fix a unit test (issue #8205).
This seems to have broken the compileall.py done in "make install": it cannot
find shared library extension modules at this point in the build (sys.path
does not contain DESTDIR/usr/lib(64)/python-2.7/lib-dynload for some reason),
leading to the build failing with:
Traceback (most recent call last):
  File "/home/david/rpmbuild/BUILDROOT/python-2.7-0.1.rc2.fc14.x86_64/usr/lib64/python2.7/compileall.py", line 17, in <module>
    import struct
  File "/home/david/rpmbuild/BUILDROOT/python-2.7-0.1.rc2.fc14.x86_64/usr/lib64/python2.7/struct.py", line 1, in <module>
   from _struct import *
ImportError: No module named _struct
This patch adds the build Modules directory to build path.
---
 Lib/site.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Lib/site.py b/Lib/site.py
index 9fd76c8157a..868b7cb58fe 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -520,6 +520,10 @@ def main():
 
     abs__file__()
     known_paths = removeduppaths()
+    from sysconfig import is_python_build
+    if is_python_build():
+        from _sysconfigdata import build_time_vars
+        sys.path.append(os.path.join(build_time_vars['abs_builddir'], 'Modules'))
     if ENABLE_USER_SITE is None:
         ENABLE_USER_SITE = check_enableusersite()
     known_paths = addusersitepackages(known_paths)