Fixes issue where setup was failing on cmake >= 3.22.0. Works with ve…

requirements.txt

@@ -1,3 +1,4 @@
 numpy
 cffi
 cmake>=3.17.0
+packaging

setup.py

@@ -1,7 +1,9 @@
 import sys
 import shutil
 import os
+import subprocess
 from os import path
+from packaging import version
 from subprocess import call as execute
 
 from setuptools.command.build_ext import build_ext
@@ -29,9 +31,16 @@ def initialize_options(self):
         self.cmake_args = None
         build_ext.initialize_options(self)
 
+    def get_cmake_version(self):
+        output = subprocess.check_output(['cmake', '--version']).decode('utf-8')
+        line = output.splitlines()[0]
+        version = line.split()[2]
+        return(version)
+
     def run(self):
         if 0 != os.system('cmake --version'):
             sys.exit('\nError: Cannot find cmake. Install cmake, e.g. `pip install cmake`.')
+
         for ext in self.extensions:
             self.build_extension(ext)
 
@@ -43,6 +52,11 @@ def build_extension(self, ext):
         shutil.rmtree(BUILD_TEMP, ignore_errors=True)
         os.makedirs(BUILD_TEMP)
 
+        if version.parse(self.get_cmake_version()) < version.parse("3.22.0"):
+            cmake_passthru_flag = "--"
+        else:
+            cmake_passthru_flag = "-S"
+
         # Run cmake
         build_type = 'Debug' if self.debug else 'Release'
         if 0 != execute(['cmake',
@@ -52,7 +66,7 @@ def build_extension(self, ext):
                          # set Debug and Release paths to the output directory on Windows
                          "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG='{}'".format(EXT_DIR),
                          "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE='{}'".format(EXT_DIR),
-                         self.cmake_args or "--",
+                         self.cmake_args or cmake_passthru_flag,
                          SOURCE_DIR], cwd=BUILD_TEMP):
             sys.exit('\nERROR: Cannot generate Makefile. See above errors.')