fixed windows include path

README.md

@@ -31,7 +31,8 @@ Special Variables:
 -   `__rbx`: stores left hand side of binary ops to avoid clobbering by the right side
 -   `__retaddr__<func_name>`: stores return address of func call
 
-When writing your code, you must include `c2logic/builtins.h`, which is located in the python include directory (location depends on system, mine is at `~/.local/include/python3.8/`). A quick way to find this is `python3 -c 'import sysconfig, os; print(sysconfig.get_path("include",f"{os.name}_user"))'`.
+When writing your code, you must include `c2logic/builtins.h`, which is located in the python include directory (location depends on system, mine is at `~/.local/include/python3.8/`).
+A quick way to find this is `python3 -c "from c2logic.compiler import get_include_path; print(get_include_path())"` (use `python` if you are using windows).
 
 See [include/builtins.h](./include/builtins.h) for API definitions and [examples](./examples) for API sample usage.
 

c2logic/compiler.py

@@ -58,7 +58,7 @@ class Compiler(c_ast.NodeVisitor):
 		ast = parse_file(
 			filename,
 			use_cpp=True,
-			cpp_args=["-I", sysconfig.get_path("include", f"{os.name}_user")]
+			cpp_args=["-I", get_include_path()]
 		)
 		self.visit(ast)
 		
@@ -431,6 +431,14 @@ class Compiler(c_ast.NodeVisitor):
 		else:
 			raise NotImplementedError(node)
 
+def get_include_path():
+	if os.name == "posix":
+		return sysconfig.get_path("include", "posix_user")
+	elif os.name == "nt":
+		return sysconfig.get_path("include", "nt")
+	else:
+		raise ValueError(f"Unknown os {os.name}")
+
 def main():
 	import argparse
 	parser = argparse.ArgumentParser()