Packaging improvements

MANIFEST.in

@@ -1 +1,2 @@
 include src/pysorteddict/*
+prune tests/

pyproject.toml

@@ -1,13 +1,8 @@
 [build-system]
 requires = [
-    # The Apple linker does not recognise `-Bsymbolic-functions`, one of the
-    # arguments cibuildwheel passes to it on macOS when building wheels for
-    # PyPy. Using an older version of Setuptools fixes this problem. However,
-    # that version does not recognise the MSYS2 platform tag, and aborts the
-    # build, preventing me from developing on MSYS2. It is not possible to
-    # detect MSYS2 from here, so just test for Windows.
-    "setuptools==70.0.0; platform_system != 'Windows'",
-    "setuptools==71.0.0; platform_system == 'Windows'",
+    # See https://github.com/pypa/cibuildwheel/issues/2015 for the reason this
+    # version is required.
+    "setuptools==72.0.0",
 ]
 build-backend = "setuptools.build_meta"
 

setup.py

@@ -9,8 +9,7 @@
 
 setuptools.setup(
     ext_modules=[
-        setuptools.Extension(
-            name="pysorteddict", extra_compile_args=[cxx_standard_arg], sources=glob.glob("src/pysorteddict/*.cc")
-        )
-    ]
+        setuptools.Extension("pysorteddict", glob.glob("src/pysorteddict/*.cc"), extra_compile_args=[cxx_standard_arg])
+    ],
+    include_package_data=False,
 )