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-rw-r--r--ext/mathn/complex/complex.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/mathn/complex/complex.c b/ext/mathn/complex/complex.c
index 5a24c6a351..01ce7d3ca8 100644
--- a/ext/mathn/complex/complex.c
+++ b/ext/mathn/complex/complex.c
@@ -24,7 +24,9 @@
#define ONE INT2FIX(1)
#define TWO INT2FIX(2)
+#if 0
VALUE rb_cComplex;
+#endif
static ID id_abs, id_abs2, id_arg, id_cmp, id_conj, id_convert,
id_denominator, id_divmod, id_equal_p, id_expt, id_floor, id_hash,