custom build for Storm, is it ok?

从 libs/python/src/converter/builtin_converters.cpp 第 51 行以及使用 Python 3.8 时的 Boost.Python 构建输出开始。重现失败的构建，检查报告的转换错误，并验证 Boost.Python 目标是否在没有跳过或失败目标的情况下成功完成。

While Installing Storm using these steps to custom build boost (see last section)
https://www.stormchecker.org/documentation/obtain-storm/dependencies.html

I have obtained not obvious result whether the installation succeeded or not:
If not, can you suggest a fix, please? Thanks.

	$ wget https://sourceforge.net/projects/boost/files/boost/1.63.0/boost_1_63_0.tar.gz
	$ tar -xzf boost_1_63_0.tar.gz
	$ cd boost_1_63_0
	$ ./bootstrap.sh
	Building Boost.Build engine with toolset gcc... tools/build/src/engine/bin.linuxx86_64/b2
	Detecting Python version... 3.8
	Detecting Python root... /home/matej/anaconda3/envs/py38
	Unicode/ICU support for Boost.Regex?... /usr
	Backing up existing Boost.Build configuration in project-config.jam.2
	Generating Boost.Build configuration in project-config.jam...

	Bootstrapping is done. To build, run:

	    ./b2
	    
	To adjust configuration, edit 'project-config.jam'.
	Further information:

	   - Command line help:
	     ./b2 --help
	     
	   - Getting started guide: 
	     http://www.boost.org/more/getting_started/unix-variants.html
	     
	   - Boost.Build documentation:
	     http://www.boost.org/build/doc/html/index.html
	$ ./bjam
	Performing configuration checks

	    - 32-bit                   : no  (cached)
	    - 64-bit                   : yes (cached)
	    - arm                      : no  (cached)
	    - mips1                    : no  (cached)
	    - power                    : no  (cached)
	    - sparc                    : no  (cached)
	    - x86                      : yes (cached)

	Building the Boost C++ Libraries.


	    - symlinks supported       : yes (cached)
	    - C++11 mutex              : yes (cached)
	    - lockfree boost::atomic_flag : yes (cached)
	    - Boost.Config Feature Check: cxx11_auto_declarations : yes (cached)
	    - Boost.Config Feature Check: cxx11_constexpr : yes (cached)
	    - Boost.Config Feature Check: cxx11_defaulted_functions : yes (cached)
	    - Boost.Config Feature Check: cxx11_final : yes (cached)
	    - Boost.Config Feature Check: cxx11_hdr_mutex : yes (cached)
	    - Boost.Config Feature Check: cxx11_hdr_tuple : yes (cached)
	    - Boost.Config Feature Check: cxx11_lambdas : yes (cached)
	    - Boost.Config Feature Check: cxx11_noexcept : yes (cached)
	    - Boost.Config Feature Check: cxx11_nullptr : yes (cached)
	    - Boost.Config Feature Check: cxx11_rvalue_references : yes (cached)
	    - Boost.Config Feature Check: cxx11_template_aliases : yes (cached)
	    - Boost.Config Feature Check: cxx11_thread_local : yes (cached)
	    - Boost.Config Feature Check: cxx11_variadic_templates : yes (cached)
	    - has_icu builds           : yes (cached)
	warning: Graph library does not contain MPI-based parallel components.
	note: to enable them, add "using mpi ;" to your user-config.jam
	    - zlib                     : yes (cached)
	    - bzip2                    : yes (cached)
	    - iconv (libc)             : yes (cached)
	    - icu                      : yes (cached)
	    - native-atomic-int32-supported : yes (cached)
	    - native-syslog-supported  : yes (cached)
	    - pthread-supports-robust-mutexes : yes (cached)
	    - compiler-supports-visibility : yes (cached)
	    - compiler-supports-ssse3  : yes (cached)
	    - compiler-supports-avx2   : yes (cached)
	    - gcc visibility           : yes (cached)
	    - long double support      : yes (cached)
	warning: skipping optional Message Passing Interface (MPI) library.
	note: to enable MPI support, add "using mpi ;" to user-config.jam.
	note: to suppress this message, pass "--without-mpi" to bjam.
	note: otherwise, you can safely ignore this message.
	    - zlib                     : yes (cached)
	    - bzip2                    : yes (cached)

	Component configuration:

	    - atomic                   : building
	    - chrono                   : building
	    - container                : building
	    - context                  : building
	    - coroutine                : building
	    - coroutine2               : building
	    - date_time                : building
	    - exception                : building
	    - fiber                    : building
	    - filesystem               : building
	    - graph                    : building
	    - graph_parallel           : building
	    - iostreams                : building
	    - locale                   : building
	    - log                      : building
	    - math                     : building
	    - metaparse                : building
	    - mpi                      : building
	    - program_options          : building
	    - python                   : building
	    - random                   : building
	    - regex                    : building
	    - serialization            : building
	    - signals                  : building
	    - system                   : building
	    - test                     : building
	    - thread                   : building
	    - timer                    : building
	    - type_erasure             : building
	    - wave                     : building

	...patience...
	...patience...
	...patience...
	...patience...
	...patience...
	...patience...
	...found 16129 targets...
	...updating 20 targets...
	gcc.compile.c++ bin.v2/libs/python/build/gcc-7/release/link-static/threading-multi/converter/builtin_converters.o
	libs/python/src/converter/builtin_converters.cpp: In function ‘void* boost::python::converter::{anonymous}::convert_to_cstring(PyObject*)’:
	libs/python/src/converter/builtin_converters.cpp:51:35: error: invalid conversion from ‘const void*’ to ‘void*’ [-fpermissive]
	       return PyUnicode_Check(obj) ? _PyUnicode_AsString(obj) : 0;

	    "g++"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -pthread -m64  -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DBOOST_PYTHON_STATIC_LIB -DNDEBUG  -I"." -I"/home/matej/anaconda3/envs/py38/include/python3.8" -c -o "bin.v2/libs/python/build/gcc-7/release/link-static/threading-multi/converter/builtin_converters.o" "libs/python/src/converter/builtin_converters.cpp"

	...failed gcc.compile.c++ bin.v2/libs/python/build/gcc-7/release/link-static/threading-multi/converter/builtin_converters.o...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>libboost_python.a(clean) for lack of <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>converter/builtin_converters.o...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>libboost_python.a for lack of <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>converter/builtin_converters.o...
	...skipped <pstage/lib>libboost_python.a for lack of <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>libboost_python.a...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>libboost_python3.a(clean) for lack of <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>converter/builtin_converters.o...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>libboost_python3.a for lack of <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>converter/builtin_converters.o...
	...skipped <pstage/lib>libboost_python3.a for lack of <pbin.v2/libs/python/build/gcc-7/release/link-static/threading-multi>libboost_python3.a...
	gcc.compile.c++ bin.v2/libs/python/build/gcc-7/release/threading-multi/converter/builtin_converters.o
	libs/python/src/converter/builtin_converters.cpp: In function ‘void* boost::python::converter::{anonymous}::convert_to_cstring(PyObject*)’:
	libs/python/src/converter/builtin_converters.cpp:51:35: error: invalid conversion from ‘const void*’ to ‘void*’ [-fpermissive]
	       return PyUnicode_Check(obj) ? _PyUnicode_AsString(obj) : 0;

	    "g++"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -pthread -fPIC -m64  -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DNDEBUG  -I"." -I"/home/matej/anaconda3/envs/py38/include/python3.8" -c -o "bin.v2/libs/python/build/gcc-7/release/threading-multi/converter/builtin_converters.o" "libs/python/src/converter/builtin_converters.cpp"

	...failed gcc.compile.c++ bin.v2/libs/python/build/gcc-7/release/threading-multi/converter/builtin_converters.o...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_python.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>converter/builtin_converters.o...
	...skipped <pstage/lib>libboost_python.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_python.so.1.63.0...
	...skipped <pstage/lib>libboost_python.so for lack of <pstage/lib>libboost_python.so.1.63.0...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_numpy.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_python.so.1.63.0...
	...skipped <pstage/lib>libboost_numpy.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_numpy.so.1.63.0...
	...skipped <pstage/lib>libboost_numpy.so for lack of <pstage/lib>libboost_numpy.so.1.63.0...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_python3.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>converter/builtin_converters.o...
	...skipped <pstage/lib>libboost_python3.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_python3.so.1.63.0...
	...skipped <pstage/lib>libboost_python3.so for lack of <pstage/lib>libboost_python3.so.1.63.0...
	...skipped <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_numpy3.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_python.so.1.63.0...
	...skipped <pstage/lib>libboost_numpy3.so.1.63.0 for lack of <pbin.v2/libs/python/build/gcc-7/release/threading-multi>libboost_numpy3.so.1.63.0...
	...skipped <pstage/lib>libboost_numpy3.so for lack of <pstage/lib>libboost_numpy3.so.1.63.0...
	...failed updating 2 targets...
	...skipped 18 targets...