Compilation error when installing awslambdaric: expected unqualified-id before '[' token

[mrichman]

Installing awslambdaric via Python 3.6 pip fails with the following:

...
-- The CXX compiler identification is GNU 4.4.7
    -- Detecting CXX compiler ABI info
    -- Detecting CXX compiler ABI info - done
    -- Check for working CXX compiler: /usr/bin/c++ - skipped
    -- Detecting CXX compile features
    -- Detecting CXX compile features - done
    -- Found CURL: /usr/lib64/libcurl.so (found version "7.19.7")
    -- Configuring done
    -- Generating done
    -- Build files have been written to: /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/build
    Scanning dependencies of target aws-lambda-runtime
    [ 20%] Building CXX object CMakeFiles/aws-lambda-runtime.dir/src/logging.cpp.o
    In file included from /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:15:
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/include/aws/logging/logging.h:30: error: expected unqualified-id before '[' token
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/include/aws/logging/logging.h:40: error: expected unqualified-id before '[' token
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/include/aws/logging/logging.h:53: error: expected unqualified-id before '[' token
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp: In function 'void aws::logging::log(aws::logging::verbosity, const char*, const char*, __va_list_tag*)':
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:44: error: 'nullptr' was not declared in this scope
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:50: error: 'constexpr' was not declared in this scope
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:50: error: expected ';' before 'int'
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:51: error: 'max_stack_buffer_size' was not declared in this scope
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:51: error: template argument 2 is invalid
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:51: error: invalid type in declaration before ';' token
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:52: error: request for member 'data' in 'buf', which is of non-class type 'int'
    /tmp/pip-install-4r8tsy1t/awslambdaric/deps/aws-lambda-cpp-0.2.6/src/logging.cpp:65: error: request for member 'data' in 'buf', which is of non-class type 'int'
    make[2]: *** [CMakeFiles/aws-lambda-runtime.dir/src/logging.cpp.o] Error 1
    make[1]: *** [CMakeFiles/aws-lambda-runtime.dir/all] Error 2
    make: *** [all] Error 2
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-4r8tsy1t/awslambdaric/setup.py", line 94, in <module>
        ext_modules=get_runtime_client_extension(),
      File "/tmp/pip-install-4r8tsy1t/awslambdaric/setup.py", line 45, in get_runtime_client_extension
        extra_link_args=get_curl_extra_linker_flags(),
      File "/tmp/pip-install-4r8tsy1t/awslambdaric/setup.py", line 18, in get_curl_extra_linker_flags
        check_call(["./scripts/preinstall.sh"])
      File "/usr/local/lib/python3.6/subprocess.py", line 291, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['./scripts/preinstall.sh']' returned non-zero exit status 2.

For context, I'm doing this via a Dockerfile so that I can reproduce a vulnerability in CentOS 6.6. The Dockerfile up to the point of failure is as follows:

ARG FUNCTION_DIR="/function"

FROM centos:6.6 as build-image

COPY CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo

WORKDIR /tmp/build

# Install aws-lambda-cpp build dependencies
RUN yum install -y \
  gcc-c++ \
  make \
  unzip \
  libcurl-devel \
  openssl-devel \
  bzip2-devel \
  libtool \
  wget \
  tar

RUN wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz && \
  tar xzf Python-3.6.6.tgz && \
  cd Python-3.6.6 && \
  ./configure --enable-optimizations && \
  make altinstall

RUN ln -sfn /usr/local/bin/python3.6 /usr/bin/python3.6

# Include global arg in this stage of the build
ARG FUNCTION_DIR

# Create function directory
RUN mkdir -p ${FUNCTION_DIR}

# Copy function code
COPY app.py ${FUNCTION_DIR}

# Install the runtime interface client
RUN wget https://github.com/Kitware/CMake/releases/download/v3.19.5/cmake-3.19.5-Linux-x86_64.tar.gz
RUN tar xzf cmake-3.19.5-Linux-x86_64.tar.gz && \
  cd cmake-3.19.5-Linux-x86_64 && \
  cp ./bin/* /usr/local/bin && \
  cp -r ./share/* /usr/local/share

RUN python3.6 -m pip install --target ${FUNCTION_DIR} awslambdaric Pillow
...

[marcomagdy]

I'm not sure what awslambdaric is. But from CMake's output, you can tell they're using an old version of GCC that does not support C++11.
-- The CXX compiler identification is GNU 4.4.7

[mrichman]

Thanks @marcomagdy I will try to get GCC 5+ installed. For CentOS 6.6, I will likely have to build it from source 😢

[bmoffatt]

Indeed, for the very first release of the Java RIC, which had CentOS 6 compatibility, gcc 4.8.5 was compiled from source.

https://github.com/aws/aws-lambda-java-libs/blob/50c7260261af249cbe40847795d7dcc9cb8dea90/aws-lambda-java-runtime-interface-client/src/main/jni/Dockerfile.glibc#L1-L33