File boost-python310-fopen-2.patch of Package boost

https://github.com/boostorg/python/pull/344

in the suse rpm's tar.bz2, file is at libs/python/src/exec.cpp

From cbd2d9f033c61d29d0a1df14951f4ec91e7d05cd Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Wed, 6 Jan 2021 10:07:29 +0100
Subject: [PATCH] Fix compatibility with Python 3.10.0a4: fopen

Replace private _Py_fopen() with public fopen(): private _Py_fopen()
function was removed in 3.10.0a4:
https://bugs.python.org/issue32381
---
 src/exec.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/exec.cpp b/src/exec.cpp
index b2eabe59f6..dd0c33103f 100644
--- a/libs/python/src/exec.cpp
+++ b/libs/python/src/exec.cpp
@@ -116,7 +116,7 @@ object BOOST_PYTHON_DECL exec_file(char const *filename, object global, object l
 #elif PY_VERSION_HEX >= 0x03000000
   // Let python open the file to avoid potential binary incompatibilities.
   PyObject *fo = Py_BuildValue("s", f);
-  FILE *fs = _Py_fopen(fo, "r"); // Private CPython API
+  FILE *fs = fopen(fo, "r");
   Py_DECREF(fo);
 #else
   // Let python open the file to avoid potential binary incompatibilities.