Remove dedicated macOS gnu++20 flag

.ci/compile.sh

@@ -285,7 +285,7 @@ echo "::endgroup::"
 # Build
 echo "::group::Build project"
 echo "Running CMake with following build flags: ${buildflags[*]}"
-cmake --build . "${buildflags[@]}"
+cmake --build . --verbose "${buildflags[@]}"
 echo "::endgroup::"
 
 # Post-build

.github/workflows/desktop-build.yml

@@ -419,7 +419,7 @@ jobs:
       - name: "[Windows] Install NSIS"
         if: matrix.os == 'Windows'
         shell: bash
-        run: choco install nsis
+        run: choco install nsis --no-progress
 
       - name: "Setup vcpkg cache"
         id: vcpkg-cache

CMakeLists.txt

@@ -172,10 +172,6 @@ elseif(CMAKE_COMPILER_IS_GNUCXX) # Linux/GCC, BSD/GCC, Windows/MinGW
     set(CMAKE_CXX_FLAGS_DEBUG "-ggdb -O0 -Wall -Wextra")
   endif()
 
-  if(APPLE) # macOS
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++20") # still needed?
-  endif()
-
   set(ADDITIONAL_DEBUG_FLAGS
       -Wcast-align
       -Wmissing-declarations
@@ -339,8 +335,8 @@ add_subdirectory(${CMAKE_SOURCE_DIR}/libcockatrice_rng ${CMAKE_BINARY_DIR}/libco
 add_subdirectory(${CMAKE_SOURCE_DIR}/libcockatrice_utility ${CMAKE_BINARY_DIR}/libcockatrice_utility)
 
 if(WITH_CLIENT
-    OR WITH_ORACLE
-    OR WITH_SERVER
+   OR WITH_ORACLE
+   OR WITH_SERVER
 )
   add_subdirectory(${CMAKE_SOURCE_DIR}/libcockatrice_network ${CMAKE_BINARY_DIR}/libcockatrice_network)
 endif()