I'm so confused part 2

.github/workflows/cmake.yml

@@ -21,7 +21,7 @@ jobs:
             cc: "clang"
             cxx: "clang++"
           - os: Ubuntu-20.04
-            cc: "clang++-11"
+            cc: "clang-11"
             cxx: "clang++-11"
           - os: Ubuntu-20.04
             cc: "gcc-10"

CMakeLists.txt

@@ -66,7 +66,7 @@ set_project_warnings(test_quicktex)
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
 
 if (CMAKE_CXX_COMPILER_ID MATCHES ".*Clang")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -lc++abi")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
     set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -stdlib=libc++ -fsanitize=undefined")
     set(PROJECT_WARNINGS ${CLANG_WARNINGS})