9420 need GCC options to disable function cloning

*** 330,342 ****
  # GCC, especially, is increasingly beginning to auto-inline functions and
  # sadly does so separately not under the general -fno-inline-functions
  # Additionally, we wish to prevent optimisations which cause GCC to clone
  # functions -- in particular, these may cause unhelpful symbols to be
  # emitted instead of function names
! CCNOAUTOINLINE= -_gcc=-fno-inline-small-functions \
          -_gcc=-fno-inline-functions-called-once \
!         -_gcc=-fno-ipa-cp
  
  # One optimization the compiler might perform is to turn this:
  #       #pragma weak foo
  #       extern int foo;
  #       if (&foo)
--- 330,349 ----
  # GCC, especially, is increasingly beginning to auto-inline functions and
  # sadly does so separately not under the general -fno-inline-functions
  # Additionally, we wish to prevent optimisations which cause GCC to clone
  # functions -- in particular, these may cause unhelpful symbols to be
  # emitted instead of function names
! CCNOAUTOINLINE= \
!         -_gcc=-fno-inline-small-functions \
          -_gcc=-fno-inline-functions-called-once \
!         -_gcc=-fno-ipa-cp \
!         -_gcc6=-fno-ipa-icf \
!         -_gcc7=-fno-ipa-icf \
!         -_gcc8=-fno-ipa-icf \
!         -_gcc6=-fno-clone-functions \
!         -_gcc7=-fno-clone-functions \
!         -_gcc8=-fno-clone-functions
  
  # One optimization the compiler might perform is to turn this:
  #       #pragma weak foo
  #       extern int foo;
  #       if (&foo)