Support iOS Simulator on arm64 (#1315)

Author: dgbeliveau

CMakeLists.txt

@@ -37,9 +37,9 @@ if(APPLE)
 
     if(FORCE_RESET_OSX_DEPLOYMENT_TARGET)
       set(CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING "Force unset of the deployment target for iOS" FORCE)
-      if((${IOS_PLAT} STREQUAL "iphonesimulator") AND ((${IOS_ARCH} STREQUAL "arm64") OR (${IOS_ARCH} STREQUAL "arm64e")))
-        # iOS arm64 simulator is supported starting BigSur
-        # Unfortunately, CMAKE produces a device binary (not simulator) when providing -miphoneos-version-min flag when building iOS arm64 simulator
+      if (${IOS_PLAT} STREQUAL "iphonesimulator")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mios-simulator-version-min=${IOS_DEPLOYMENT_TARGET}")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mios-simulator-version-min=${IOS_DEPLOYMENT_TARGET}")
       else()
         set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -miphoneos-version-min=${IOS_DEPLOYMENT_TARGET}")
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -miphoneos-version-min=${IOS_DEPLOYMENT_TARGET}")