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-rw-r--r--lib/libm/atan.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libm/atan.c b/lib/libm/atan.c
index 6793af93..36d10d73 100644
--- a/lib/libm/atan.c
+++ b/lib/libm/atan.c
@@ -29,7 +29,10 @@
* to produce the hexadecimal values shown.
*/
-#include "libm.h"
+#include "libm.h" // for FORCE_EVAL, GET_HIGH_WORD
+
+#include <math.h> // for double_t, atan, fabs, isnan
+#include <stdint.h> // for uint32_t
static const double atanhi[] = {
4.63647609000806093515e-01, /* atan(0.5)hi 0x3FDDAC67, 0x0561BB4F */