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-rw-r--r--include/ruby/ruby.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 1e619da..7a83887 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -1021,10 +1021,10 @@ NORETURN(void rb_throw_obj(VALUE,VALUE));
VALUE rb_require(const char*);
#ifdef __ia64
-void ruby_init_stack(VALUE*, void*);
+void ruby_init_stack(volatile VALUE*, void*);
#define ruby_init_stack(addr) ruby_init_stack(addr, rb_ia64_bsp())
#else
-void ruby_init_stack(VALUE*);
+void ruby_init_stack(volatile VALUE*);
#endif
#define RUBY_INIT_STACK \
VALUE variable_in_this_stack_frame; \