Disable pedantic compilation for CMake 4.0.0 and AppleClang 15.0

Author: clonker

Diff for: CMakeLists.txt

@@ -70,6 +70,14 @@ endif()
 
 find_package(Threads)
 
+# for Apple clang 15 under cmake 4.0.0, disable pedantic warnings explicitly as it fails to treat boost properly as
+# system library, warnings propagate
+if ("${CMAKE_SYSTEM_NAME}" MATCHES "Darwin" AND "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+    if (CMAKE_VERSION VERSION_EQUAL "4.0.0" AND CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL "15.0")
+        set(PEDANTIC OFF)
+    endif()
+endif()
+
 if(NOT PEDANTIC)
   message(WARNING "-- Pedantic build flags turned off. Warnings will not make compilation fail. This is NOT recommended in development builds.")
 endif()