add path of libcuda.so.1 for cinn compilation (#50268)

paddle/scripts/paddle_build.sh

@@ -157,14 +157,16 @@ function cmake_base() {
             -DPYTHON_INCLUDE_DIR:PATH=/opt/_internal/cpython-3.10.0/include/python3.10
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-3.10.0/lib/libpython3.so"
                 pip3.10 install -r ${PADDLE_ROOT}/python/requirements.txt
-           elif [ "$1" == "conda-python3.7" ]; then
+            elif [ "$1" == "conda-python3.7" ]; then
                 export LD_LIBRARY_PATH=/opt/conda/lib/:${LD_LIBRARY_PATH}
                 export PATH=/opt/conda/bin/:${PATH}
                 export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/conda/bin/python
                                      -DPYTHON_INCLUDE_DIR:PATH=/opt/conda/include/python3.7m
                                      -DPYTHON_LIBRARIES:FILEPATH=/opt/conda/lib/libpython3.so"
                 /opt/conda/bin/pip install -r ${PADDLE_ROOT}/python/requirements.txt
-           fi
+            fi
+            # for CINN, to find libcuda.so.1
+            export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-11.2/compat/
         else
             pip install -r ${PADDLE_ROOT}/python/requirements.txt
         fi