Fails to build using gcc 8.5

[radford-for-smpte]

Tested using the gcc that ships w/ both CentOS 8 and 9. You can reproduce using this simple Dockerfile:

FROM rockylinux:8

RUN yum install -y epel-release
RUN yum install -y cmake3 xerces-c-devel gcc gcc-c++ tar gzip make

ENV VERSION=1.1.4

RUN curl -L https://github.com/sandflow/regxmllib/archive/$VERSION.tar.gz | tar -z -x -f - && \
    cd regxmllib-$VERSION && \
    cmake3 . && \
    make

and the command docker build .

See error output here:

log.txt

[palemieux]

Did you try -std=c++11?

[palemieux]

Can you attach xerces-c/include/xercesc/util/Xerces_autoconf_config.hpp?

[palemieux]

Ok, so the basic issue is that modern OSes require C++ > 98, so to we cannot require CXX_STANDARD == 98.

We should instead test the library in an environment that supports CXX_STANDARD == 98.