Hack in GCC-15 by adding PPA from plucky.

Author: wmaxey

features/src/gcc/install.sh

@@ -23,6 +23,11 @@ check_packages                  \
 GCC_VERSION_DEFAULT="$(gcc -dumpversion)";
 GCC_VERSION="${VERSION:-${GCC_VERSION_DEFAULT}}";
 
+if [[ "${GCC_VERSION}" == "15" ]]; then
+    apt-add-repository -y "deb https://ppa.launchpadcontent.net/ubuntu-toolchain-r/ppa/ubuntu plucky main";
+    apt-add-repository -y "deb https://ppa.launchpadcontent.net/ubuntu-toolchain-r/test/ubuntu plucky main";
+fi
+
 if [[ "${GCC_VERSION}" != "${GCC_VERSION_DEFAULT}" ]]; then
     apt-add-repository -y ppa:ubuntu-toolchain-r/test;
     apt-add-repository -y ppa:ubuntu-toolchain-r/ppa;

matrix.yml

@@ -13,6 +13,7 @@ x-gcc-11: &gcc_11 { name: "gcc", version: "11" }
 x-gcc-12: &gcc_12 { name: "gcc", version: "12" }
 x-gcc-13: &gcc_13 { name: "gcc", version: "13" }
 x-gcc-14: &gcc_14 { name: "gcc", version: "14" }
+x-gcc-15: &gcc_15 { name: "gcc", version: "15" }
 x-gcc-env: &gcc_env { CC: "gcc", CXX: "g++", CUDAHOSTCXX: "g++" }
 x-gcc-env-rapids: &gcc_env_rapids { CC: "gcc", CXX: "g++", CUDAHOSTCXX: "g++", PYTHON_VERSION: "3.13" }
 
@@ -113,6 +114,7 @@ include:
   images:
   - { features: [*python, *gcc_13, { <<: *cuda_curr_max, <<: *cccl_cuda_opts }, *clang_format_cccl, *clangd_dev, *cccl_dev], env: *gcc_env }
   - { features: [*python, *gcc_14, { <<: *cuda_curr_max, <<: *cccl_cuda_opts }, *clang_format_cccl, *clangd_dev, *cccl_dev], env: *gcc_env }
+  - { features: [*python, *gcc_15, { <<: *cuda_curr_max, <<: *cccl_cuda_opts }, *clang_format_cccl, *clangd_dev, *cccl_dev], env: *gcc_env }
 
 - os: "windows"
   images: