Alias hypotl() and cabsl() for platforms where long double is the same

as double.

lib/msun/src/e_hypot.c

@@ -46,6 +46,8 @@ __FBSDID("$FreeBSD$");
  * 	than 1 ulps (units in the last place) 
  */
 
+#include <float.h>
+
 #include "math.h"
 #include "math_private.h"
 
@@ -123,3 +125,7 @@ __ieee754_hypot(double x, double y)
 	    return t1*w;
 	} else return w;
 }
+
+#if LDBL_MANT_DIG == 53
+__weak_reference(hypot, hypotl);
+#endif

lib/msun/src/w_cabs.c

@@ -9,11 +9,15 @@
 __FBSDID("$FreeBSD$");
 
 #include <complex.h>
+#include <float.h>
 #include <math.h>
 
 double
-cabs(z)
-	double complex z;
+cabs(double complex z)
 {
 	return hypot(creal(z), cimag(z));
 }
+
+#if LDBL_MANT_DIG == 53
+__weak_reference(cabs, cabsl);
+#endif