--- /dev/null
+#include "libm.h"
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double cabsl(long double complex z)
+{
+ return cabs(z);
+}
+#else
+long double cabsl(long double complex z)
+{
+ return hypotl(creall(z), cimagl(z));
+}
+#endif