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-rw-r--r--sysdeps/ieee754/dbl-64/s_tanh.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_tanh.c b/sysdeps/ieee754/dbl-64/s_tanh.c
index 321bf44142..673a97102d 100644
--- a/sysdeps/ieee754/dbl-64/s_tanh.c
+++ b/sysdeps/ieee754/dbl-64/s_tanh.c
@@ -41,6 +41,7 @@ static char rcsid[] = "$NetBSD: s_tanh.c,v 1.7 1995/05/10 20:48:22 jtc Exp $";
 #include <float.h>
 #include <math.h>
 #include <math_private.h>
+#include <math-underflow.h>
 #include <libm-alias-double.h>
 
 static const double one = 1.0, two = 2.0, tiny = 1.0e-300;