rewrite build system to build separate binary wheels for each platform. only tested on Linux so far. should fix #25.

setup.py

@@ -1,5 +1,6 @@
 import pathlib
 from setuptools import setup
+from setuptools.dist import Distribution
 
 # The directory containing this file
 HERE = pathlib.Path(__file__).parent
@@ -7,6 +8,11 @@ HERE = pathlib.Path(__file__).parent
 # The text of the README file
 README = (HERE / "README.md").read_text()
 
+class BinaryDistribution(Distribution):
+    """Distribution which always forces a binary package with platform name"""
+    def has_ext_modules(foo):
+        return True
+
 # This call to setup() does all the work
 setup(
     name="raylib",
@@ -21,6 +27,7 @@ setup(
     classifiers=[
         "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
@@ -28,5 +35,6 @@ setup(
     packages=["raylib", "raylib.dynamic", "raylib.static"],
     include_package_data=True,
     install_requires=["cffi>=1.14.0","inflection"],
-    #cffi_modules=["raylib/build_mac.py:ffibuilder"], # this would build libs whenever the module is installed, but we are distributing static libs instead
+    distclass=BinaryDistribution,
+    cffi_modules=["raylib/static/build.py:ffibuilder"], # this would build libs whenever the module is installed, but we are distributing static libs instead
 )