Darwin: fix warning for hack to prevent crashes during stacktrace generation

diff --git a/coregrind/m_stacktrace.c b/coregrind/m_stacktrace.c
index 5175f79fef984f58d4bc1e05af929fe601ebad90..b9cf0e62d08cfbd6c477ada418f21f3dc3601e6b 100644 (file)
--- a/coregrind/m_stacktrace.c
+++ b/coregrind/m_stacktrace.c
@@ -46,6 +46,11 @@
 #include "pub_core_trampoline.h"
 #include "config.h"
 
+#if defined(VGO_darwin)
+// FIXME PJF this is bad (it's a syswrap private function)
+// but the alternative for the moment is crashes when trying to produce stack traces
+extern Bool ML_(safe_to_deref) ( const void *start, SizeT size );
+#endif
 
 /*------------------------------------------------------------*/
 /*---                                                      ---*/