cannot install python package in Linux container

[ca3tech]

I am unable to install orderedstructs in a Linux docker container. I originally tried with the python:3.9.9-bullseye image, which failed and I speculated that it was because there is no C++ 11 compiler for that environment. I then tried an image based on ubuntu:jammy which does have C++ 11 compiler available:

ARG VARIANT="jammy"
FROM ubuntu:${VARIANT}

ARG PYTHON_VERSION=3.9

# The following was actually performed in the running container
# The installation of python prompts for information and so
# doesn't work non-interactively
RUN apt update \
 && apt install -y build-essential python${PYTHON_VERSION} python3-pip \
 && apt-get autoremove -y \
 && apt-get clean -y \
 && rm -rf /var/lib/apt/lists/*

When doing the pip install I get:

...
    gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1 -I/usr/include/python3.9 -c src/cpp/SkipList.cpp -o build/temp.linux-x86_64-3.9/src/cpp/SkipList.o -Wall -Wextra -Werror -Wfatal-errors -Wno-c++11-compat-deprecated-writable-strings -std=c++11 -Isrc/cpp -USKIPLIST_THREAD_SUPPORT -Wno-stdlibcxx-not-found -g3 -O2 -DNDEBUG
    In file included from src/cpp/SkipList.h:397,
                     from src/cpp/SkipList.cpp:15:
    src/cpp/Node.h:21: error: ignoring ‘#pragma mark ’ [-Werror=unknown-pragmas]
       21 | #pragma mark -
          |
    compilation terminated due to -Wfatal-errors.
    cc1plus: all warnings being treated as errors
    error: command '/usr/bin/gcc' failed with exit code 1
...

I also tried installing clang and using that as the compiler. It fails as well, but differently:

...
    clang -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1 -I/usr/include/python3.9 -c src/cpp/SkipList.cpp -o build/temp.linux-x86_64-3.9/src/cpp/SkipList.o -Wall -Wextra -Werror -Wfatal-errors -Wno-c++11-compat-deprecated-writable-strings -std=c++11 -Isrc/cpp -USKIPLIST_THREAD_SUPPORT -Wno-stdlibcxx-not-found -g3 -O2 -DNDEBUG
    In file included from src/cpp/SkipList.cpp:15:
    In file included from src/cpp/SkipList.h:397:
    In file included from src/cpp/Node.h:12:
    In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/functional:54:
    In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/tuple:38:
    /usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/utility:95:29: fatal error: no template named 'remove_cv'; did you mean '::std::remove_cv'?
               typename _Up = typename remove_cv<_Tp>::type,
                                       ^
    /usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/type_traits:1537:12: note: '::std::remove_cv' declared here
        struct remove_cv
               ^
    1 error generated.
    error: command '/usr/bin/clang' failed with exit code 1
...

[paulross]

Thanks for reporting this. I have just fixed it in version 0.3.7 and I have checked that build out of source on Linux when you set the USING_GCC environment variable thus:

USING_GCC=1 python setup.py ...