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site_scons/buildutils.py

@@ -1260,11 +1260,13 @@ def setup_python_env(env):
         import numpy
         import json
         import site
+        import sys
         vars = get_config_vars()
         vars["plat"] = get_platform()
         vars["numpy_include"] = numpy.get_include()
         vars["site_packages"] = [d for d in site.getsitepackages() if d.endswith("-packages")]
         vars["user_site_packages"] = site.getusersitepackages()
+        vars["abiflags"] = getattr(sys, "abiflags", "")
         print(json.dumps(vars))
         """)
         _python_info = json.loads(get_command_output(env["python_cmd"], "-c", script))
@@ -1298,10 +1300,13 @@ def setup_python_env(env):
     env["site_packages"] = info["site_packages"]
     env["user_site_packages"] = info["user_site_packages"]
     if env["OS"] != "Windows":
-        env["py_libpl"] = info["LIBPL"]
+        env["py_libpath"] = info["LIBPL"]
+        py_lib = "python" + info["py_version_short"] + info["abiflags"]
     else:
-        env["py_libpl"] = info["installed_base"] + "\\libs"
-    env["py_libs"] = info.get("LIBS", "")
+        env["py_libpath"] = info["installed_base"] + "\\libs"
+        py_lib = "python" + py_version_nodot
+    env["py_libs"] = [py_lib] + [lib[2:] for lib in info.get("LIBS", "").split()
+                                 if lib.startswith("-l")]
 
     # Don't print deprecation warnings for internal Python changes.
     # Only applies to Python 3.8. The field that is deprecated in Python 3.8

src/SConscript

@@ -75,6 +75,7 @@ for subdir, extensions, setup in libs:
 if env["python_package"] == "full":
     pyenv = setup_python_env(localenv.Clone())
     pyenv.PrependENVPath('PYTHONPATH', Dir('#interfaces/cython').abspath)
+    pyenv['PCH'] = ''  # ignore precompiled header here
     build_dir = Path(Dir('#build').abspath).as_posix()
     cythonized = pyenv.Command(
          ["extensions/pythonExtensions.cpp", "extensions/pythonExtensions.h"],
@@ -90,10 +91,10 @@ if env["python_package"] == "full":
                 Copy('$TARGET', '$SOURCE'))
     libraryTargets.append(obj)
     libraryTargets.append(pyenv.SharedObject("extensions/PythonExtensionManager.cpp"))
-    libpython = pyenv.subst("python${py_version_short}")
-    localenv.Append(LIBS=libpython, LIBPATH=pyenv["py_libpl"], LDFLAGS=pyenv["py_libs"])
-    env["cantera_libs"].append(libpython)
-
+    localenv.Append(LIBS=pyenv["py_libs"], LIBPATH=pyenv["py_libpath"])
+    env["cantera_libs"].extend(pyenv["py_libs"])
+    env.Append(LIBPATH=pyenv["py_libpath"])
+    env["extra_lib_dirs"].append(pyenv["py_libpath"])
 
 # build the Cantera static library
 lib = build(localenv.StaticLibrary('../lib/cantera', libraryTargets,