--- /dev/null
+Index: b/Lib/distutils/sysconfig.py
+===================================================================
+--- a/Lib/distutils/sysconfig.py
++++ b/Lib/distutils/sysconfig.py
+@@ -423,40 +423,11 @@
+ _config_vars = None
+
+ def _init_posix():
+- """Initialize the module as appropriate for POSIX systems."""
+- g = {}
+- # load the installed Makefile:
+- try:
+- filename = get_makefile_filename()
+- parse_makefile(filename, g)
+- except OSError as msg:
+- my_msg = "invalid Python installation: unable to open %s" % filename
+- if hasattr(msg, "strerror"):
+- my_msg = my_msg + " (%s)" % msg.strerror
+-
+- raise DistutilsPlatformError(my_msg)
+-
+- # load the installed pyconfig.h:
+- try:
+- filename = get_config_h_filename()
+- with open(filename) as file:
+- parse_config_h(file, g)
+- except OSError as msg:
+- my_msg = "invalid Python installation: unable to open %s" % filename
+- if hasattr(msg, "strerror"):
+- my_msg = my_msg + " (%s)" % msg.strerror
+-
+- raise DistutilsPlatformError(my_msg)
+-
+- # On AIX, there are wrong paths to the linker scripts in the Makefile
+- # -- these paths are relative to the Python source, but when installed
+- # the scripts are in another directory.
+- if python_build:
+- g['LDSHARED'] = g['BLDSHARED']
+-
++ # _sysconfigdata is generated at build time, see the sysconfig module
++ from _sysconfigdata import build_time_vars
+ global _config_vars
+- _config_vars = g
+-
++ _config_vars = {}
++ _config_vars.update(build_time_vars)
+
+ def _init_nt():
+ """Initialize the module as appropriate for NT"""