microsoft
diff --git a/Diff for: ‎src/anomaly_detector/univariate/util/critical_table.txt
+1 b/Diff for: ‎src/anomaly_detector/univariate/util/critical_table.txt
+1
diff --git a/Diff for: ‎src/build.py
+63 b/Diff for: ‎src/build.py
+63
@@ -0,0 +1,63 @@
+# ---------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# ---------------------------------------------------------
+
+import os
+import os
+import numpy as np
+from distutils.errors import CCompilerError, DistutilsExecError, DistutilsPlatformError
+
+# See if Cython is installed
+try:
+    from Cython.Build import cythonize
+# Do nothing if Cython is not available
+except ImportError:
+    # Got to provide this function. Otherwise, poetry will fail
+    def build(setup_kwargs):
+        pass
+# Cython is installed. Compile
+else:
+    from setuptools import Extension
+    from setuptools.dist import Distribution
+    from setuptools.command.build_ext import build_ext
+# use cythonize to build the extensions
+modules = ["./anomaly_detector/univariate/*.pyx"]
+extensions = cythonize(modules,
+                       language_level=3,
+                       compiler_directives={'linetrace': True},
+                       )
+
+
+# cmdclass = {'build_ext': build_ext}
+class BuildFailed(Exception):
+    pass
+
+
+class ExtBuilder(build_ext):
+
+    def run(self):
+        try:
+            build_ext.run(self)
+        except (DistutilsPlatformError, FileNotFoundError):
+            raise BuildFailed('File not found. Could not compile C extension.')
+
+    def build_extension(self, ext):
+        try:
+            build_ext.build_extension(self, ext)
+        except (CCompilerError, DistutilsExecError, DistutilsPlatformError, ValueError):
+            raise BuildFailed('Could not compile C extension.')
+
+
+cmdclass = {"build_ext": ExtBuilder}
+
+
+def build(setup_kwargs):
+    """Needed for the poetry building interface."""
+
+    os.environ['CFLAGS'] = '-O3'
+
+    setup_kwargs.update({
+        'ext_modules': extensions,
+        'include_dirs': [np.get_include()],
+        'cmdclass': cmdclass
+    })