Add build on Ubuntu 24.04

.github/workflows/docker_2404.yml

@@ -0,0 +1,21 @@
+name: Build on Ubuntu 24.04
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build Docker images
+        uses: docker/build-push-action@v5
+        with:
+           file: docker/ubuntu/Dockerfile2404
+           load: true
+           tags: cgimap:2404
+      - name: Running Docker image
+        run: |
+           docker run --entrypoint /bin/bash cgimap:2404 -c "/usr/local/bin/openstreetmap-cgimap --help"

docker/ubuntu/Dockerfile2404

@@ -0,0 +1,62 @@
+# vim:set ft=dockerfile:
+FROM ubuntu:24.04 AS builder
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update -qq && \
+    apt-get install -y gcc g++ make cmake \
+       libfcgi-dev libxml2-dev libmemcached-dev libbrotli-dev \
+       libboost-program-options-dev libcrypto++-dev libyajl-dev \
+       libpqxx-dev zlib1g-dev libfmt-dev \
+       postgresql-16 postgresql-server-dev-all \
+       --no-install-recommends && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy the main application.
+COPY . ./
+
+# Compile, install and remove source
+RUN mkdir build && cd build && \
+     CXXFLAGS="-Wall -Wextra -Wpedantic -Wno-unused-parameter" cmake .. -DBUILD_SHARED_LIBS=OFF -DBUILD_TESTING=ON -DCMAKE_BUILD_TYPE=Release && \
+     make -j${nproc} && \
+     ctest --output-on-failure && \
+     strip openstreetmap-cgimap && \
+     cp openstreetmap-cgimap ../
+
+FROM ubuntu:24.04
+
+RUN apt-get update -qq && \
+    apt-get install -y \
+       libfcgi-bin libmemcached11 libboost-program-options1.83.0 \
+       libxml2 libcrypto++8 libyajl2 libpqxx-7.8t64 zlib1g libbrotli1 libfmt9 \
+       --no-install-recommends && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /app/openstreetmap-cgimap /usr/local/bin
+
+RUN groupadd -g 61000 cgimap && \
+    useradd -g 61000 -l -M -s /bin/false -u 61000 cgimap
+
+USER cgimap
+
+ENV CGIMAP_HOST db
+ENV CGIMAP_DBNAME openstreetmap
+ENV CGIMAP_USERNAME openstreetmap
+ENV CGIMAP_PASSWORD openstreetmap
+ENV CGIMAP_MEMCACHE memcached
+ENV CGIMAP_RATELIMIT 204800
+ENV CGIMAP_MAXDEBT 250
+ENV CGIMAP_MODERATOR_RATELIMIT 1048576
+ENV CGIMAP_MODERATOR_MAXDEBT 1024
+ENV CGIMAP_PORT 8000
+ENV CGIMAP_INSTANCES 10
+
+EXPOSE 8000
+
+ENTRYPOINT /usr/local/bin/openstreetmap-cgimap --pidfile /tmp/cgimap.pid --logfile=/proc/1/fd/1 --daemon && \
+           tail --pid=$(cat /tmp/cgimap.pid) -f /dev/null
+

src/main.cpp

@@ -146,7 +146,7 @@ void get_options(int argc, char **argv, po::variables_map &options) {
   if (options.count("help")) {
     std::cout << desc << std::endl;
     output_backend_options(std::cout);
-    exit(1);
+    exit(0);
   }
 
   po::store(po::parse_environment(desc,