f**k msvc

pyproject.toml

 [build-system]
-requires = ["setuptools>=41.0", "wheel", "pccm>=0.2.10", "cumm>=0.1.6"]
+requires = ["setuptools>=41.0", "wheel", "pccm>=0.2.11", "cumm>=0.1.6"]
 build-backend = "setuptools.build_meta"

setup.py

@@ -16,6 +16,7 @@ import pccm
 from pccm.extension import ExtCallback, PCCMBuild, PCCMExtension
 from setuptools import Command, find_packages, setup
 from setuptools.extension import Extension
+from ccimport import compat
 
 # Package meta-data.
 NAME = 'spconv'
@@ -137,11 +138,16 @@ if disable_jit is not None and disable_jit == "1":
     cu = GemmMainUnitTest(SHUFFLE_SIMT_PARAMS + SHUFFLE_VOLTA_PARAMS + SHUFFLE_TURING_PARAMS)
 
     cu.namespace = "cumm.gemm.main"
+    if compat.InWindows:
+        std = None 
+    else:
+        std = "-std=c++14"
     ext_modules: List[Extension] = [
         PCCMExtension([cu, SpconvOps()],
                       "spconv/core_cc",
                       Path(__file__).resolve().parent / "spconv",
                       objects_folder="objects",
+                      std=std,
                       disable_pch=True)
     ]
 else:

spconv/csrc/sparse/all.py

@@ -17,7 +17,7 @@ from cumm.conv.bases import ConvOpType, NHWC
 from cumm.conv.params import ConvProblem
 from cumm import dtypes
 import pccm 
-
+from ccimport import compat
 from .pointops import Point2Voxel, Point2VoxelCPU
 from .indices import SparseConvIndicesKernel, CudaCommonKernel
 from .maxpool import IndiceMaxPool
@@ -26,6 +26,15 @@ class SpconvOps(pccm.Class):
     def __init__(self):
         super().__init__()
         self.ndims = [1, 2, 3, 4]
+        if compat.InWindows:
+            if "cl" not in self.build_meta.compiler_to_cflags:
+                self.build_meta.compiler_to_cflags["cl"] = []
+            self.build_meta.compiler_to_cflags["cl"].extend("-Xcompiler=\"/std:c++17\"")
+
+            if "nvcc" not in self.build_meta.compiler_to_cflags:
+                self.build_meta.compiler_to_cflags["nvcc"] = []
+            self.build_meta.compiler_to_cflags["nvcc"].extend("-std=c++14")
+
         for ndim in self.ndims:
             p2v = Point2Voxel(dtypes.float32,  ndim)
             p2v_cpu = Point2VoxelCPU(dtypes.float32, ndim)