HAVE_BUILTIN_UNWIND_INIT 1010 gc/include/private/gcconfig.h #   ifdef HAVE_BUILTIN_UNWIND_INIT
HAVE_BUILTIN_UNWIND_INIT  410 gc/mach_dep.c  #     ifdef HAVE_BUILTIN_UNWIND_INIT
HAVE_BUILTIN_UNWIND_INIT  456 gc/mach_dep.c  #   if (defined(SPARC) && !defined(HAVE_BUILTIN_UNWIND_INIT)) \