More linux compilers

.github/workflows/linux.yaml

@@ -6,18 +6,18 @@ on:
     # branches: [ master ]
 
 jobs:
-  Linux-GCC:
-    runs-on: ubuntu-20.04
+  Latest:
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: ['7', '13']
+        cxx: ['g++-14', 'clang++-18']
     env:
       CMAKE_OPTIONS: -DDEV_MODE=ON -DBUILD_TESTING=ON
       CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
+      CXX: ${{matrix.cxx}}
     steps:
-      - uses: egor-tensin/setup-gcc@v1
-        with:
-          version: ${{matrix.cxx}}
+      - name: list compilers
+        run: dpkg --list | grep compiler
 
       - name: Get pushed code
         uses: actions/checkout@v4
@@ -47,22 +47,23 @@ jobs:
       - name: Test installation
         run: cmake --install _build --prefix ${GITHUB_WORKSPACE}/_built
 
-  Linux-Clang:
+  Oldest:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        cxx: ['7', '18']
+        cxx: ['g++-7', 'clang++-7']
     env:
-      CMAKE_OPTIONS: -DDEV_MODE=ON -DBUILD_TESTING=ON -DCMAKE_CXX_FLAGS="-stdlib=libc++"
+      CMAKE_OPTIONS: -DDEV_MODE=ON -DBUILD_TESTING=ON
       CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
+      CXX: ${{matrix.cxx}}
     steps:
-      - uses: egor-tensin/setup-clang@v1
-        with:
-          version: ${{matrix.cxx}}
-
-      - name: Install libc++
+      - name: install gcc-7
         run: |
-          sudo apt install -y libc++abi-${{matrix.cxx}}-dev libc++-${{matrix.cxx}}-dev
+          sudo add-apt-repository --yes --update ppa:ubuntu-toolchain-r/test
+          sudo DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends ${{matrix.cxx}}
+
+      - name: list compilers
+        run: dpkg --list | grep compiler
 
       - name: Get pushed code
         uses: actions/checkout@v4

CMakeLists.txt

@@ -36,7 +36,6 @@ if(DEV_MODE)
   set(CMAKE_CXX_EXTENSIONS OFF)
   add_cxx_flag_if_supported(-Wno-error=unused-command-line-argument
                             -Wall -Wextra -Wpedantic -Wfatal-errors -fstack-protector-strong
-                            -Wno-self-assign
                             -Wcast-align
                             -W4)
 endif()