-#include <math/complex.h>
+#ifndef _COMPLEX_H
+# include <math/complex.h>
+
+# ifndef _ISOMAC
+/* Return the complex inverse hyperbolic sine of finite nonzero Z,
+ with the imaginary part of the result subtracted from pi/2 if ADJ
+ is nonzero. */
+extern complex float __kernel_casinhf (complex float z, int adj);
+extern complex double __kernel_casinh (complex double z, int adj);
+extern complex long double __kernel_casinhl (complex long double z, int adj);
+# endif
+
+#endif