Build a minimal boost example linking to a subset of boost libs

Dockerfile

## Both rocky versions work
#FROM rockylinux:8
FROM rockylinux:9

# This file builds a subset of boost from source and then builds and runs a
# small example program which links to boost
#
# Reference:  https://www.boost.org/doc/user-guide/getting-started.html

#==============================================

WORKDIR /workdir

RUN \
	dnf update -y && \
	dnf install -y \
	bzip2-devel \
	gcc-c++ \
	git \
	libicu-devel \
	python3 \
	which \
	zlib-devel

RUN git clone \
	#--branch master \
	--depth 1 \
	--branch boost-1.88.0 \
	https://github.com/boostorg/boost

##==============================================

WORKDIR /workdir/boost

## Build all boost modules
#RUN git submodule update --init --recursive

# Build only specific modules, e.g. lambda
RUN git submodule update --depth 1 -q --init tools/boostdep
RUN git submodule update --depth 1 -q --init libs/lambda
RUN python3 tools/boostdep/depinst/depinst.py -X test -g "--depth 1" lambda

RUN mkdir /usr/local/boost
RUN ./bootstrap.sh
RUN ./b2
RUN ./b2 install --prefix=/usr/local/boost

ENV BOOST_ROOT=/usr/local/boost
ENV LD_LIBRARY_PATH=/usr/local/boost/lib:$LD_LIBRARY_PATH
ENV CPLUS_INCLUDE_PATH=/usr/local/boost/include:$CPLUS_INCLUDE_PATH

#==============================================

WORKDIR /workdir/

RUN cat <<EOF > ./example.cpp
// Include a header from the Boost.Lambda library
#include <boost/lambda/lambda.hpp>
#include <iostream>
#include <algorithm>
int main()
{
	using namespace boost::lambda;
	typedef std::istream_iterator<int> in;
	std::cout << "Enter numbers: ";
	// Read a sequence of integers from standard input, use Boost.Lambda to multiply each number by three, then write it to the standard output
	std::for_each(
		in(std::cin), in(), std::cout << (_1 * 3) << " ");
}
EOF

RUN g++ -I /usr/local/boost/include example.cpp -o example

RUN echo "10 11 12" | ./example

# The whole boost installation is only 229 MB (185 MB of include headers and 45
# MB of libs)
WORKDIR /usr/local/boost
RUN du -h --max=1

WORKDIR /workdir/