trying to use clang-16 on ubuntu

.github/workflows/ubuntu.yml

@@ -35,10 +35,14 @@ jobs:
     strategy:
       matrix:
         build_type: [Release]
-    env:
-      CC: clang
-      CXX: clang++
     steps:
+      - name: Install Clang 16
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y clang-16
+          sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-16 100
+          sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-16 100
+
       - name: Checkout code
         uses: actions/checkout@v3
 

CMakeLists.txt

@@ -23,12 +23,6 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 include(cmake/dependencies.cmake)
 
-# on ubuntu with clang, an incorrect version of the c++ standard library was being linked
-if (${CMAKE_HOST_SYSTEM_NAME} MATCHES "Linux" AND "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-    # If the compiler is Clang, use libc++
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libstdc++")
-endif()
-
 ################################################################################
 # targets