There was an error linking dynamic libraries during cross compilation(without docker)

[Clarence-wcz]

Describe the bug
A clear and concise description of what the bug is.
When I used build.md to compile the dynamic library for ARM, the following error occurred.
The compile command I used was " cmake -DCMAKE_TOOLCHAIN_FILE=/home/linux/onnxruntime/tool.cmake -DONNX_CUSTOM_PROTOC_EXECUTABLE=/home/linux/onnxruntime/protoc-3.6.1-linux-x86_64/bin/protoc -Donnxruntime_RUN_ONNX_TESTS=OFF -Donnxruntime_GENERATE_TEST_REPORTS=OFF -Donnxruntime_DEV_MODE=OFF -DPYTHON_EXECUTABLE=/usr/bin/python3 -Donnxruntime_ENABLE_PYTHON=OFF -Donnxruntime_BUILD_SHARED_LIB=ON -Donnxruntime_USE_EIGEN_FOR_BLAS=OFF -Donnxruntime_USE_BRAINSLICE=OFF -Donnxruntime_USE_EIGEN_THREADPOOL=OFF -Donnxruntime_CROSS_COMPILING=OFF -Donnxruntime_ENABLE_LANGUAGE_INTEROP_OPS=OFF -DCMAKE_BUILD_TYPE=Debug -DPYTHON_INCLUDE_DIR=/usr/include/python3.5 -DPYTHON_LIBRARY=/usr/lib/python3.5/config-3.5m-x86_64-linux-gnu/libpython3.5.so -DBUILD_SHARED_LIBS=OFF -Donnxruntime_ENABLE_STATIC_ANALYSIS=OFF"

[ 74%] Linking CXX shared library libonnxruntime.so
[ 74%] Building CXX object CMakeFiles/onnxruntime_test_all.dir/home/linux/onnxruntime/onnxruntime/test/optimizer/graph_transform_test.cc.o
[ 74%] Building CXX object CMakeFiles/onnxruntime_test_all.dir/home/linux/onnxruntime/onnxruntime/test/optimizer/graph_transform_utils_test.cc.o
[ 74%] Building CXX object CMakeFiles/onnxruntime_test_all.dir/home/linux/onnxruntime/onnxruntime/test/optimizer/optimizer_test.cc.o
[ 74%] Building CXX object CMakeFiles/onnxruntime_test_all.dir/home/linux/onnxruntime/onnxruntime/test/optimizer/rule_based_graph_transformer_test.cc.o
[ 74%] Building CXX object CMakeFiles/onnxruntime_test_all.dir/home/linux/onnxruntime/onnxruntime/test/framework/TestAllocatorManager.cc.o
[ 75%] Building CXX object CMakeFiles/onnxruntime_test_all.dir/home/linux/onnxruntime/onnxruntime/test/framework/allocation_planner_test.cc.o
libonnxruntime_util.a(math_cpu.cc.o): In function void onnxruntime::math::Gemm<float, onnxruntime::CPUMathUtil>(CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, long long, long long, long long, float, float const*, float const*, float, float*, onnxruntime::CPUMathUtil*, onnxruntime::DataTypeImpl const*)': /home/linux/onnxruntime/onnxruntime/core/util/math_cpu.cc:317: undefined reference to cblas_sgemm'
libonnxruntime_util.a(math_cpu.cc.o): In function void onnxruntime::math::Gemm<double, onnxruntime::CPUMathUtil>(CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, long long, long long, long long, float, double const*, double const*, float, double*, onnxruntime::CPUMathUtil*, onnxruntime::DataTypeImpl const*)': /home/linux/onnxruntime/onnxruntime/core/util/math_cpu.cc:328: undefined reference to cblas_dgemm'
libonnxruntime_util.a(math_cpu.cc.o): In function void onnxruntime::math::GemmEx<float, onnxruntime::CPUMathUtil>(CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, int, int, int, float, float const*, int, float const*, int, float, float*, int, onnxruntime::CPUMathUtil*)': /home/linux/onnxruntime/onnxruntime/core/util/math_cpu.cc:368: undefined reference to cblas_sgemm'
libonnxruntime_util.a(math_cpu.cc.o): In function void onnxruntime::math::Gemv<float, onnxruntime::CPUMathUtil>(CBLAS_TRANSPOSE, int, int, float, float const*, float const*, float, float*, onnxruntime::CPUMathUtil*, onnxruntime::DataTypeImpl const*)': /home/linux/onnxruntime/onnxruntime/core/util/math_cpu.cc:374: undefined reference to cblas_sgemv'
libonnxruntime_util.a(math_cpu.cc.o): In function void onnxruntime::math::Axpy<float, onnxruntime::CPUMathUtil>(int, float, float const*, float*, onnxruntime::CPUMathUtil*)': /home/linux/onnxruntime/onnxruntime/core/util/math_cpu.cc:408: undefined reference to cblas_saxpy'
collect2: error: ld returned 1 exit status
CMakeFiles/onnxruntime.dir/build.make:185: recipe for target 'libonnxruntime.so.0.4.0' failed
make[2]: *** [libonnxruntime.so.0.4.0] Error 1
CMakeFiles/Makefile2:144: recipe for target 'CMakeFiles/onnxruntime.dir/all' failed
make[1]: *** [CMakeFiles/onnxruntime.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

3.log

Urgency
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System information

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Ubuntu 16.04
• ONNX Runtime installed from (source or binary): source
• ONNX Runtime version: 0.4
• Python version: 3.5.2
• Visual Studio version (if applicable): N/A
• GCC/Compiler version (if compiling from source): arm-linux-gnueabihf-gcc-6.2.1
• CUDA/cuDNN version: N/A
• GPU model and memory: N/A

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Expected behavior
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[faxu]

@Clarence-wcz are you still having this issue?

[faxu]

please reopen if further assistance is needed.