fix: grab PyTorch ABI version from libtorch_python.so

build_tools/cmake/TorchMLIRPyTorch.cmake

@@ -70,12 +70,20 @@ function(TorchMLIRConfigurePyTorch)
     # Check ABI compatibility version
     execute_process(
       COMMAND ${Python3_EXECUTABLE}
-      -c "import torch; import sys; abi=torch._C._PYBIND11_BUILD_ABI; abi.startswith('_cxxabi10') or sys.exit(1); sys.stdout.write(str(abi[-2:]))"
+      -c "import torch; import os; print(os.path.join(os.path.dirname(torch.__file__), 'lib', 'libtorch_python.so'), end='')"
       RESULT_VARIABLE _result
       WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-      OUTPUT_VARIABLE _cxx_abi_version)
-    if(_result)
-      message(FATAL_ERROR "Failed to determine C++ ABI version")
+      OUTPUT_VARIABLE _libtorch_python_path)
+    if(_result OR NOT EXISTS "${_libtorch_python_path}")
+      message(FATAL_ERROR "Failed to locate libtorch_python.so at ${_libtorch_python_path}")
+    endif()
+    execute_process(
+      COMMAND bash "-c" "strings '${_libtorch_python_path}' | grep -E '^CXXABI_1\\.3\\.[0-9]+$' | sort -V | tail -1 | grep -oE '[0-9]+$'"
+      RESULT_VARIABLE _result
+      OUTPUT_VARIABLE _cxx_abi_version
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+    if(_result OR NOT _cxx_abi_version)
+      message(FATAL_ERROR "Failed to determine C++ ABI version from ${_libtorch_python_path}")
     endif()
     message(STATUS "PyTorch C++ ABI version: \"${_cxx_abi_version}\"")
 

pytorch-requirements.txt

@@ -1,3 +1,3 @@
 -f https://download.pytorch.org/whl/nightly/cpu/torch/
 --pre
-torch==2.9.0.dev20250820
+torch==2.10.0.dev20251016

torchvision-requirements.txt

@@ -1,3 +1,3 @@
 -f https://download.pytorch.org/whl/nightly/cpu/torchvision/
 --pre
-torchvision==0.24.0.dev20250820
+torchvision==0.25.0.dev20251016