$OpenBSD: patch-setup_py,v 1.4 2018/08/09 17:39:27 danj Exp $
Index: setup.py
--- setup.py.orig
+++ setup.py
@@ -817,6 +817,8 @@ class PyBuildExt(build_ext):
                                                      'termcap'):
                 readline_libs.append('termcap')
             exts.append( Extension('readline', ['readline.c'],
+                                   extra_compile_args=['-nostdinc'],
+                                   include_dirs=['/usr/include'],
                                    library_dirs=['/usr/lib/termcap'],
                                    extra_link_args=readline_extra_link_args,
                                    libraries=readline_libs) )
@@ -1823,8 +1825,7 @@ class PyBuildExt(build_ext):
         # The versions with dots are used on Unix, and the versions without
         # dots on Windows, for detection by cygwin.
         tcllib = tklib = tcl_includes = tk_includes = None
-        for version in ['8.6', '86', '8.5', '85', '8.4', '84', '8.3', '83',
-                        '8.2', '82', '8.1', '81', '8.0', '80']:
+        for version in ['85']:
             tklib = self.compiler.find_library_file(lib_dirs,
                                                         'tk' + version)
             tcllib = self.compiler.find_library_file(lib_dirs,
