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-rw-r--r--sysdeps/ieee754/ldbl-128/s_atanl.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_atanl.c b/sysdeps/ieee754/ldbl-128/s_atanl.c
index e05368df53..022ccf4c45 100644
--- a/sysdeps/ieee754/ldbl-128/s_atanl.c
+++ b/sysdeps/ieee754/ldbl-128/s_atanl.c
@@ -62,6 +62,7 @@
 #include <float.h>
 #include <math.h>
 #include <math_private.h>
+#include <math-underflow.h>
 #include <libm-alias-ldouble.h>
 
 /* arctan(k/8), k = 0, ..., 82 */