Use current Python version for build flag

typon/trans/main.py

@@ -7,6 +7,7 @@ typon in.py [-o out.py] [-v]
 
 import argparse
 import logging
+import os
 from pathlib import Path
 import sys
 
@@ -50,9 +51,11 @@ def main():
             pybind11.commands.get_include()
         ]
         include_dirs = list(dict.fromkeys(include_dirs))
+        # get python major and minor version
+        python_version = sys.version_info
         cpp_flags = [
             *["-I" + d for d in include_dirs],
-            "-pthread", "-luring", "-lfmt", "-lssl", "-lcrypto", "-lpython3.10", "-std=c++20"
+            "-pthread", "-luring", "-lfmt", "-lssl", "-lcrypto", f"-lpython{python_version.major}.{python_version.minor}", "-std=c++20"
         ]
         if args.extension:
             cpp_flags.extend(("-DTYPON_EXTENSION", "-fPIC", "-shared"))