1 files changed, 0 insertions, 2 deletions
diff --git a/numeric.c b/numeric.c
index 0c419e1be7..95dc7bbab4 100644
--- a/numeric.c
+++ b/numeric.c
@@ -78,8 +78,6 @@ const unsigned char rb_nan[] = "\x00\x00\xc0\x7f";
 const unsigned char rb_nan[] = "\x7f\xc0\x00\x00";
 #endif
 
-extern double round(double);
-
 #ifndef HAVE_ROUND
 double
 round(double x)