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-rw-r--r--bignum.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/bignum.c b/bignum.c
index ef76fc5..f4f3b18 100644
--- a/bignum.c
+++ b/bignum.c
@@ -13,7 +13,7 @@
#include <math.h>
extern VALUE C_Integer;
-VALUE C_Bignum;
+static VALUE C_Bignum;
#define BDIGITS(x) RBIGNUM(x)->digits
#define BITSPERDIG (sizeof(USHORT)*CHAR_BIT)