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-rw-r--r--vm_backtrace.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/vm_backtrace.c b/vm_backtrace.c
index 042c2824da..7b579d6220 100644
--- a/vm_backtrace.c
+++ b/vm_backtrace.c
@@ -19,8 +19,6 @@
static VALUE rb_cBacktrace;
static VALUE rb_cBacktraceLocation;
-extern VALUE ruby_engine_name;
-
static VALUE
id2str(ID id)
{