1 files changed, 1 insertions, 1 deletions
diff --git a/vm_dump.c b/vm_dump.c
index 553acf2800..6a85413892 100644
--- a/vm_dump.c
+++ b/vm_dump.c
@@ -438,7 +438,7 @@ rb_vmdebug_thread_dump_state(VALUE self)
 # ifdef HAVE_LIBUNWIND
 #  undef backtrace
 #  define backtrace unw_backtrace
-# elif defined(__APPLE__) && defined(__x86_64__)
+# elif defined(__APPLE__) && defined(__x86_64__) && defined(HAVE_LIBUNWIND_H)
 #  define UNW_LOCAL_ONLY
 #  include <libunwind.h>
 #  undef backtrace