/Users/fujiik/rpm/BUILD/tmp
diff -uNr root-6.24.06.ORIG/interpreter/cling/lib/Interpreter/CMakeLists.txt root-6.24.06/interpreter/cling/lib/Interpreter/CMakeLists.txt
--- root-6.24.06.ORIG/interpreter/cling/lib/Interpreter/CMakeLists.txt	2021-09-01 17:08:19.000000000 +0900
+++ root-6.24.06/interpreter/cling/lib/Interpreter/CMakeLists.txt	2022-02-20 01:06:19.000000000 +0900
@@ -195,7 +195,12 @@
       # binary. Eg. /usr/local/gcc -> /usr/bin/ccache. Resolving the realpath
       # we will get to the ccache and not the intended compiler binary. This
       # could be fixed if we run 'gcc -###' which will give us the correct info.
-      get_filename_component(_realpath ${CMAKE_CXX_COMPILER} REALPATH)
+      if(APPLE)
+        get_filename_component(_realpath "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++" REALPATH)
+        set(CLING_CXX_PATH ${_realpath})
+      else()
+        get_filename_component(_realpath ${CMAKE_CXX_COMPILER} REALPATH)
+      endif()
       get_filename_component(_name ${_realpath} NAME)
       get_filename_component(_path ${_realpath} PATH)
     endif()