make/linux/makefiles/gcc.make

*** 203,212 ****
--- 203,213 ----
    # However we need to clean the code up before we can unrestrictedly enable this option with Clang
    WARNINGS_ARE_ERRORS += -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
    WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare
    WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess
    WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body
+   WARNINGS_ARE_ERRORS += -Wno-undefined-bool-conversion
  endif
  
  WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function -Wunused-value -Wformat=2 -Wreturn-type -Woverloaded-virtual
  
  ifeq ($(USE_CLANG),)