fix build error

CMakeLists.txt

@@ -183,7 +183,7 @@ set(VLLM_EXT_SRC
   "csrc/layernorm_kernels.cu"
   "csrc/transpose_kernels.cu"
   "csrc/quantization/squeezellm/quant_cuda_kernel.cu"
-  # "csrc/quantization/gptq/q_gemm.cu"
+  "csrc/quantization/gptq/q_gemm.cu"
   "csrc/quantization/compressed_tensors/int8_quant_kernels.cu"
   # "csrc/quantization/fp8/common.cu"
   "csrc/cuda_utils_kernels.cu"

csrc/core/scalar_type.hpp

 #pragma once
 
 #include <torch/custom_class.h>
+#include <variant>
 
 namespace vllm {
 

setup.py

@@ -391,7 +391,7 @@ try:
     import vllm.commit_id
     __commit__ = vllm.commit_id.__commit__
 except Exception as e:
-    warnings.warn(f"Failed to read commit hash:\n + str(e)",
+    warnings.warn(f"Failed to read commit hash:\\n + str(e)",
                   RuntimeWarning,
                   stacklevel=2)
     __commit__ = "COMMIT_HASH_PLACEHOLDER"