add cp27-cp27m-gcc82 and cp27-cp27mu-gcc82 branch to support gcc8.2 compile for paddle, test=develop (#22504)

paddle/scripts/paddle_build.sh

@@ -136,6 +136,20 @@ function cmake_base() {
             -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27mu/include/python2.7
             -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs4/lib/libpython2.7.so"
                 pip install -r ${PADDLE_ROOT}/python/requirements.txt
+            elif [ "$1" == "cp27-cp27m-gcc82" ]; then
+                export LD_LIBRARY_PATH=/opt/_internal/cpython-2.7.15-ucs2/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-2.7.15-ucs4/lib:}
+                export PATH=/opt/python/cp27-cp27m/bin/:${PATH}
+                PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27m/bin/python
+            -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27m/include/python2.7
+            -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.15-ucs2/lib/libpython2.7.so"
+                pip install -r ${PADDLE_ROOT}/python/requirements.txt
+            elif [ "$1" == "cp27-cp27mu-gcc82" ]; then
+                export LD_LIBRARY_PATH=/opt/_internal/cpython-2.7.15-ucs4/lib:${LD_LIBRARY_PATH#/opt/_internal/cpython-2.7.15-ucs2/lib:}
+                export PATH=/opt/python/cp27-cp27mu/bin/:${PATH}
+                PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27mu/bin/python
+            -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27mu/include/python2.7
+            -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.15-ucs4/lib/libpython2.7.so"
+                pip install -r ${PADDLE_ROOT}/python/requirements.txt
             elif [ "$1" == "cp35-cp35m" ]; then
                 export LD_LIBRARY_PATH=/opt/_internal/cpython-3.5.1/lib/:${LD_LIBRARY_PATH}
                 export PATH=/opt/_internal/cpython-3.5.1/bin/:${PATH}