Issue #4566 has been reported by jojelino lastname.

----------------------------------------
Bug #4566: followup of [ruby-core:32747] 
http://redmine.ruby-lang.org/issues/4566

Author: jojelino lastname
Status: Open
Priority: High
Assignee: 
Category: core
Target version: 1.9.3
ruby -v: revision 31234


[ruby-core:32747]
Index: vm_exec.c
===================================================================
--- vm_exec.c   (revision 31234)
+++ vm_exec.c   (working copy)
@@ -11,7 +11,7 @@

 #include <math.h>

-#if VMDEBUG > 0
+#if (VMDEBUG > 0) | ((__GNUC__ >= 4) && (__GNUC_MINOR__ >= 6) && (__GNUC_PATCHLEVEL__ >= 0))
 #define DECL_SC_REG(type, r, reg) register type reg_##r

 #elif __GNUC__ && __x86_64__ && !__clang__

please apply this, it resolves segmentation fault in gcc > 4.6 
specifying register name explicitly fails. although it worked in previous version.
if you continue using explicit register name, you gotta find workaround about it ;)


-- 
http://redmine.ruby-lang.org