Add Fedora 40 to build pipeline (#430)

_And_:
* Remove Fedora 38
* Fix `openSUSE Leap 15` Docker build's default GCC no longer compiles `Mapnik` latest
  * C++17 is now required, so a newer GCC will be installed
* Fix for coverage capturing with LCOV 2.1
  * Seems to currently only exist on macOS

docker/README.md

@@ -18,6 +18,7 @@ For your convenience, we have provided a Docker-based building and testing metho
 - fedora-37 _(Fedora 37)_ [[Dockerfile](/docker/fedora/Dockerfile)]
 - fedora-38 _(Fedora 38)_ [[Dockerfile](/docker/fedora/Dockerfile)]
 - fedora-39 _(Fedora 39)_ [[Dockerfile](/docker/fedora/Dockerfile)]
+- fedora-40 _(Fedora 40)_ [[Dockerfile](/docker/fedora/Dockerfile)]
 - fedora-rawhide _(Fedora Rawhide)_ [[Dockerfile](/docker/fedora/Dockerfile)]
 - opensuse-leap-15 _(openSUSE Leap 15)_ [[Dockerfile](/docker/opensuse/Dockerfile)]
 - opensuse-tumbleweed _(openSUSE Tumbleweed)_ [[Dockerfile](/docker/opensuse/Dockerfile)]

docker/docker-compose.yml

@@ -1,6 +1,4 @@
 ---
-version: "3.8"
-
 x-mod_tile:
   build_defaults: &build_defaults
     context: ..
@@ -197,6 +195,12 @@ services:
       <<: *build_defaults_fedora
       args:
         fedora_version: "39"
+  fedora-40:
+    <<: *service_defaults
+    build:
+      <<: *build_defaults_fedora
+      args:
+        fedora_version: "40"
   fedora-rawhide:
     <<: *service_defaults
     build:
@@ -209,6 +213,7 @@ services:
       <<: *build_defaults_opensuse
       args:
         boost_version: "1_75_0"
+        gcc_version: "13"
         opensuse_version: "leap:15"
   opensuse-tumbleweed:
     <<: *service_defaults

docker/opensuse/Dockerfile

@@ -1,5 +1,6 @@
 # Arguments
 ARG boost_version
+ARG gcc_version
 ARG opensuse_version=leap:15
 
 # Mapnik Builder
@@ -7,6 +8,7 @@ FROM opensuse/${opensuse_version} as mapnik-builder
 
 ## Arguments
 ARG boost_version
+ARG gcc_version
 ARG opensuse_version
 
 ## Install mapnik-builder dependencies
@@ -17,8 +19,8 @@ RUN --mount=id=opensuse:${opensuse_version}-/var/cache/zypp,target=/var/cache/zy
         cairo-devel \
         cmake \
         freetype-devel \
-        gcc \
-        gcc-c++ \
+        gcc${gcc_version} \
+        gcc${gcc_version}-c++ \
         gdal-devel \
         git \
         harfbuzz-devel \
@@ -39,7 +41,13 @@ RUN --mount=id=opensuse:${opensuse_version}-/var/cache/zypp,target=/var/cache/zy
         python3 \
         sqlite3-devel \
         tar \
-        zlib-devel
+        zlib-devel && \
+    if [ -n "${gcc_version}" ]; then \
+        update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-${gcc_version} 10; \
+        update-alternatives --install /usr/bin/cc gcc /usr/bin/gcc-${gcc_version} 10; \
+        update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-${gcc_version} 10; \
+        update-alternatives --install /usr/bin/c++ g++ /usr/bin/g++-${gcc_version} 10; \
+    fi
 
 ## Download, Build & Install `Mapnik`
 WORKDIR /tmp/mapnik_src
@@ -53,9 +61,12 @@ RUN --mount=id=opensuse:${opensuse_version}-mapnik-src:latest,target=/tmp/mapnik
     export CMAKE_BUILD_PARALLEL_LEVEL=$(nproc) && \
     export DESTDIR=/tmp/mapnik && \
     cmake -B . -S /tmp/mapnik_src \
+        -DBUILD_BENCHMARK:BOOL=OFF \
+        -DBUILD_DEMO_CPP:BOOL=OFF \
         -DBUILD_DEMO_VIEWER:BOOL=OFF \
         -DBUILD_TESTING:BOOL=OFF \
         -DCMAKE_BUILD_TYPE:STRING=Release \
+        -DCMAKE_CXX_STANDARD:STRING=17 \
         -DCMAKE_INSTALL_PREFIX:PATH=/usr \
         -DMAPNIK_PKGCONF_DIR:PATH=/usr/share/pkgconfig && \
     cmake --build . && \