From b5eaeb7ed4e75012d2715f995e15a13850064f61 Mon Sep 17 00:00:00 2001
From: Yi Zhao <yi.zhao@windriver.com>
Date: Wed, 24 Nov 2021 13:33:35 +0800
Subject: [PATCH] Fix pyext_PATTERN for cross compilation

The pyext_PATTERN will add native arch as suffix when cross compiling.
For example, on qemuarm64, it is expanded to:
pyext_PATTERN ='%s.cpython-310-x86_64-linux-gnu.so'
which will result in the incorrect library name.

root@qemuarm64:~# find /usr/lib -name \*talloc\*
/usr/lib/pkgconfig/talloc.pc
/usr/lib/pkgconfig/pytalloc-util.cpython-310-x86_64-linux-gnu.pc
/usr/lib/libpytalloc-util.cpython-310-x86-64-linux-gnu.so.2.3.3
/usr/lib/libtalloc.so.2
/usr/lib/libpytalloc-util.cpython-310-x86-64-linux-gnu.so.2
/usr/lib/libpytalloc-util.cpython-310-x86-64-linux-gnu.so
/usr/lib/libtalloc.so
/usr/lib/libtalloc.so.2.3.3
/usr/lib/python3.10/site-packages/talloc.cpython-310-x86_64-linux-gnu.so

Set pyext_PATTERN to '%s.so' to remove the suffix.
After the patch:
root@qemuarm64:~# find /usr/lib -name \*talloc\*
/usr/lib/pkgconfig/talloc.pc
/usr/lib/pkgconfig/pytalloc-util.pc
/usr/lib/libpytalloc-util.so.2.3.3
/usr/lib/libtalloc.so.2
/usr/lib/libpytalloc-util.so.2
/usr/lib/libpytalloc-util.so
/usr/lib/libtalloc.so
/usr/lib/libtalloc.so.2.3.3
/usr/lib/python3.10/site-packages/talloc.so

Upstream-Status: Inappropriate [embedded specific]

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
---
 third_party/waf/waflib/Tools/python.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/third_party/waf/waflib/Tools/python.py b/third_party/waf/waflib/Tools/python.py
index b1c8dd0..24faa31 100644
--- a/third_party/waf/waflib/Tools/python.py
+++ b/third_party/waf/waflib/Tools/python.py
@@ -328,7 +328,7 @@ def check_python_headers(conf, features='pyembed pyext'):
 	x = 'MACOSX_DEPLOYMENT_TARGET'
 	if dct[x]:
 		env[x] = conf.environ[x] = dct[x]
-	env.pyext_PATTERN = '%s' + dct['SO'] # not a mistake
+	env.pyext_PATTERN = '%s.so'
 
 
 	# Try to get pythonX.Y-config
-- 
2.17.1