[protobuf] protobuf build failed - error: invalid conversion from 'const char*' to 'char*'

[i***@gmail.com]

package used - protobuf-3.6.1-py37hf484d3e_0.tar.bz2 to build on x86


/root/anaconda3/conda-bld/protobuf_1543557438196/_build_env/bin/x86_64-conda_cos6-linux-gnu-cc
-DNDEBUG -fwrapv -O2 -Wall -Wstrict-prototypes -march=nocona -mtune=haswell
-ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O2 -pipe
-I/root/anaconda3/conda-bld/protobuf_1543557438196/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold/include
-fdebug-prefix-map=${SRC_DIR}=/usr/local/src/conda/${PKG_NAME}-${PKG_VERSION}
-fdebug-prefix-map=${PREFIX}=/usr/local/src/conda-prefix -DNDEBUG
-D_FORTIFY_SOURCE=2 -O2 -fPIC -I. -I../src
-I/root/anaconda3/conda-bld/protobuf_1543557438196/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold/include/python3.7m
-c google/protobuf/pyext/descriptor.cc -o
build/temp.linux-x86_64-3.7/google/protobuf/pyext/descriptor.o
-Wno-write-strings -Wno-invalid-offsetof -Wno-sign-compare
cc1plus: warning: command line option '-Wstrict-prototypes' is valid for
C/ObjC but not for C++
google/protobuf/pyext/descriptor.cc: In function 'bool
google::protobuf::python::_CalledFromGeneratedFile(int)':
google/protobuf/pyext/descriptor.cc:59:45: error: invalid conversion from
'const char*' to 'char*' [-fpermissive]
((*(charpp) = PyUnicode_AsUTF8AndSize(ob, (sizep))) == NULL? -1:
0): \
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~