diff --git a/.clang-tidy b/.clang-tidy
index a2abdb8f..23a628bd 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -29,6 +29,7 @@
   -readability-container-data-pointer,
   -readability-suspicious-call-argument,
   -readability-implicit-bool-conversion,
+  -readability-uppercase-literal-suffix,
   -bugprone-easily-swappable-parameters,
   -bugprone-exception-escape,
   -cppcoreguidelines-special-member-functions,
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index c4c131e6..34beda95 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -11,20 +11,16 @@ jobs:
         build-type: [ Release, RelWithDebInfo ]
         compiler: [
             { cxx: g++-11, pkgs: gcc-11 libtbb-dev },
-            #{ cxx: g++-12, pkgs: gcc-12 libtbb-dev }, # disabled because of warnings in the std library
+            { cxx: g++-12, pkgs: gcc-12 libtbb-dev },
             { cxx: clang++-14, pkgs: clang-14 libtbb-dev },
             { cxx: clang++-15, pkgs: clang-15 libtbb-dev },
         ]
-        lib-type: [
-            { name: Static, cmake-flag: "OFF" },
-            { name: Shared, cmake-flag: "ON"  },
-        ]
         
     defaults:
       run:
         working-directory: ${{ github.workspace }}/build
 
-    name: ${{ matrix.compiler.cxx }}, ${{ matrix.build-type }}, ${{ matrix.lib-type.name }}
+    name: ${{ matrix.compiler.cxx }}, ${{ matrix.build-type }}
 
     steps:
     - name: checkout-repo
@@ -41,7 +37,7 @@ jobs:
     - name: setup-build
       env:
         CXX: ${{ matrix.compiler.cxx }}
-      run: cmake .. -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} -DGAPP_LINK_TBB=ON -DBUILD_SHARED_LIBS=${{ matrix.lib-type.cmake-flag }}
+      run: cmake .. -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} -DGAPP_LINK_TBB=ON -DBUILD_SHARED_LIBS=OFF
 
     - name: build
       run: cmake --build . --parallel
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3b8df400..46e625c8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -101,7 +101,8 @@ else() # GNU style compiler interface
 
     # gcc specific options
     if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
-	    set(GAPP_WARN_FLAGS "${GAPP_WARN_FLAGS} -Wlogical-op")
+        # https://gcc.gnu.org/bugzilla//show_bug.cgi?id=71434 with gcc 12 even though it's a system header + pragma diagnostic doesn't work
+	    set(GAPP_WARN_FLAGS "${GAPP_WARN_FLAGS} -Wlogical-op -Wno-maybe-uninitialized")
     endif()
     # clang specific options
     if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")