Use OpenVINO 2026.1.0 for ONNX Runtime builds

Author: barrypitman

onnxruntime/cppbuild.sh

@@ -12,6 +12,7 @@ export DNNL_FLAGS="--use_dnnl"
 export CMAKE_ARGS=
 export COREML_FLAGS=
 export OPENVINO_FLAGS=
+export OPENVINO_CMAKE_DIR=
 export OPENMP_FLAGS= # "--use_openmp"
 export TRAINING_FLAGS= # --enable_training_apis --enable_training_ops
 export CUDAFLAGS="-v"
@@ -28,6 +29,7 @@ if [[ "$EXTENSION" == *gpu ]]; then
 fi
 
 ONNXRUNTIME=1.26.0
+OPENVINO=2026.1.0
 
 mkdir -p "$PLATFORM$EXTENSION"
 cd "$PLATFORM$EXTENSION"
@@ -72,13 +74,10 @@ case $PLATFORM in
 esac
 
 case $PLATFORM in
-    linux-x86_64)
-        export OPENVINO_FLAGS="--use_openvino CPU"
-        # Match OpenVINO's libstdc++ ABI to avoid protobuf/ONNX link errors.
-        export CXXFLAGS="${CXXFLAGS:-} -D_GLIBCXX_USE_CXX11_ABI=0"
-        ;;
-    windows-x86_64)
-        export OPENVINO_FLAGS="--use_openvino CPU"
+    linux-x86_64|windows-x86_64)
+        "$PYTHON_BIN_PATH" -m pip install openvino==$OPENVINO
+        OPENVINO_CMAKE_DIR=$("$PYTHON_BIN_PATH" -c "import pathlib, openvino; print(pathlib.Path(openvino.__file__).parent / 'cmake')")
+        export OPENVINO_FLAGS="--use_openvino CPU --cmake_extra_defines OpenVINO_DIR=$OPENVINO_CMAKE_DIR"
         ;;
 esac