bpo-42111: Make the xxlimited module an example of best extension module practices (GH-23226)

- Copy existing xxlimited to xxlimited53 (named for the limited API version it uses)
- Build both modules, both in debug and release
- Test both modules

1 files changed, 8 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index 90588e8..ca5a04d 100644
--- a/setup.py
+++ b/setup.py
@@ -1803,8 +1803,16 @@ class PyBuildExt(build_ext):
 ##         self.add(Extension('xx', ['xxmodule.c']))
 
         if 'd' not in sysconfig.get_config_var('ABIFLAGS'):
+            # Non-debug mode: Build xxlimited with limited API
             self.add(Extension('xxlimited', ['xxlimited.c'],
+                               define_macros=[('Py_LIMITED_API', '0x03100000')]))
+            self.add(Extension('xxlimited_35', ['xxlimited_35.c'],
                                define_macros=[('Py_LIMITED_API', '0x03050000')]))
+        else:
+            # Debug mode: Build xxlimited with the full API
+            # (which is compatible with the limited one)
+            self.add(Extension('xxlimited', ['xxlimited.c']))
+            self.add(Extension('xxlimited_35', ['xxlimited_35.c']))
 
     def detect_tkinter_explicitly(self):
         # Build _tkinter using explicit locations for Tcl/Tk.