Adapt for Cython 3.x

Author: gjbex

source-code/cython/JuliaSet/Makefile

@@ -9,4 +9,5 @@ $(JULIA_LIB): $(PYX_FILES)
 
 clean:
 	python setup.py clean
-	rm -f $(C_FILES)  $(JULIA_LIB)
+	$(RM) -f $(C_FILES)  $(JULIA_LIB)
+	$(RM) -r build/

source-code/cython/JuliaSet/setup.py

@@ -4,10 +4,17 @@
 from distutils.extension import Extension
 from Cython.Distutils import build_ext
 
+extensions=[
+    Extension('julia_cython', ['julia_cython.pyx']),
+    Extension('julia_cython_omp', ['julia_cython_omp.pyx'],
+              extra_compile_args=['-fopenmp'],\
+              extra_link_args=['-fopenmp'])
+]
+
+for extension in extensions:
+    extension.cython_directives = {'language_level': "3"}
+
 setup(
     cmdclass={'build_ext': build_ext},
-    ext_modules=[Extension('julia_cython', ['julia_cython.pyx']),
-                 Extension('julia_cython_omp', ['julia_cython_omp.pyx'],
-                           extra_compile_args=['-fopenmp'],\
-                           extra_link_args=['-fopenmp'])]
+    ext_modules=extensions,
 )