Fix mac build

Author: exeldro

.github/workflows/build.yml

@@ -13,7 +13,7 @@ env:
 jobs:
   macos:
     name: macOS
-    runs-on: macos-12
+    runs-on: macos-latest
     strategy:
       fail-fast: false
       matrix:

CMakeLists.txt

@@ -1,9 +1,6 @@
 # --- Detect if the plugin is build out of tree or not ---
 if(CMAKE_PROJECT_NAME STREQUAL "obs-studio")
   set(BUILD_OUT_OF_TREE OFF)
-  if(OBS_CMAKE_VERSION VERSION_GREATER_EQUAL 3.0.0)
-    legacy_check()
-  endif()
 else()
   set(BUILD_OUT_OF_TREE ON)
   cmake_minimum_required(VERSION 3.18)

cmake/ObsPluginHelpers.cmake

@@ -265,7 +265,7 @@ if(OS_MACOS)
   # Set macOS-specific C++ standard library
   target_compile_options(
     ${CMAKE_PROJECT_NAME}
-    PRIVATE "$<$<COMPILE_LANG_AND_ID:OBJC,AppleClang,Clang>:-fcolor-diagnostics>" -stdlib=libc++)
+    PRIVATE "$<$<COMPILE_LANG_AND_ID:OBJC,AppleClang,Clang>:-fcolor-diagnostics>")
 
   # Set build architecture to host architecture by default
   if(NOT CMAKE_OSX_ARCHITECTURES)