bug fix

Author: Prerak Singh

pydatastructs/utils/_extensions.py

@@ -1,21 +1,26 @@
 from setuptools import Extension
+import os
+import sys
 
 project = 'pydatastructs'
-
 module = 'utils'
-
 backend = '_backend'
-
 cpp = 'cpp'
 
 nodes = '.'.join([project, module, backend, cpp, '_nodes'])
-nodes_sources = ['/'.join([project, module, backend, cpp,
-                            'nodes.cpp'])]
+nodes_sources = [os.path.join(project, module, backend, cpp, 'nodes.cpp')]
+
 graph_utils = '.'.join([project, module, backend, cpp, '_graph_utils'])
-graph_utils_sources = ['/'.join([project, module, backend, cpp,
-                            'graph_utils.cpp'])]
+graph_utils_sources = [os.path.join(project, module, backend, cpp, 'graph_utils.cpp')]
+
+extra_compile_args = ["-std=c++17"]
+
+if sys.platform == "darwin":
+    extra_compile_args.append("-mmacosx-version-min=10.13")
+elif sys.platform == "win32":
+    extra_compile_args = ["/std:c++17"]
 
 extensions = [
-    Extension(nodes, sources=nodes_sources, language="c++", extra_compile_args=["-std=c++17"]),
-    Extension(graph_utils, sources = graph_utils_sources, language="c++", extra_compile_args=["-std=c++17"])
+    Extension(nodes, sources=nodes_sources, language="c++", extra_compile_args=extra_compile_args),
+    Extension(graph_utils, sources=graph_utils_sources, language="c++", extra_compile_args=extra_compile_args),
 ]