libtalloc: 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

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-support/libtalloc/libtalloc/0001-Fix-pyext_PATTERN-for-cross-compilation.patch

@@ -0,0 +1,57 @@
+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
+

meta-networking/recipes-support/libtalloc/libtalloc_2.3.3.bb

@@ -9,6 +9,7 @@ LIC_FILES_CHKSUM = "file://talloc.h;beginline=3;endline=27;md5=a301712782cad6dd6
 
 SRC_URI = "https://www.samba.org/ftp/talloc/talloc-${PV}.tar.gz \
            file://options-2.2.0.patch \
+           file://0001-Fix-pyext_PATTERN-for-cross-compilation.patch \
 "
 SRC_URI[sha256sum] = "6be95b2368bd0af1c4cd7a88146eb6ceea18e46c3ffc9330bf6262b40d1d8aaa"