The math module uses function pointers to math functions, which breaks
using the system libm on ARM since we compile with -mhard-float.

diff -u -r ../Python-3.4.3/Modules/mathmodule.c ./Modules/mathmodule.c
--- ../Python-3.4.3/Modules/mathmodule.c	2015-02-25 06:27:46.000000000 -0500
+++ ./Modules/mathmodule.c	2015-04-29 16:50:52.895371496 -0400
@@ -727,7 +727,7 @@
 */
 
 static PyObject *
-math_1_to_whatever(PyObject *arg, double (*func) (double),
+math_1_to_whatever(PyObject *arg, __NDK_FPABI_MATH__ double (*func) (double),
                    PyObject *(*from_double_func) (double),
                    int can_overflow)
 {
@@ -765,7 +765,7 @@
    errno = ERANGE for overflow). */
 
 static PyObject *
-math_1a(PyObject *arg, double (*func) (double))
+math_1a(PyObject *arg, __NDK_FPABI_MATH__ double (*func) (double))
 {
     double x, r;
     x = PyFloat_AsDouble(arg);
@@ -808,19 +808,19 @@
 */
 
 static PyObject *
-math_1(PyObject *arg, double (*func) (double), int can_overflow)
+math_1(PyObject *arg, __NDK_FPABI_MATH__ double (*func) (double), int can_overflow)
 {
     return math_1_to_whatever(arg, func, PyFloat_FromDouble, can_overflow);
 }
 
 static PyObject *
-math_1_to_int(PyObject *arg, double (*func) (double), int can_overflow)
+math_1_to_int(PyObject *arg, __NDK_FPABI_MATH__ double (*func) (double), int can_overflow)
 {
     return math_1_to_whatever(arg, func, PyLong_FromDouble, can_overflow);
 }
 
 static PyObject *
-math_2(PyObject *args, double (*func) (double, double), char *funcname)
+math_2(PyObject *args, __NDK_FPABI_MATH__ double (*func) (double, double), char *funcname)
 {
     PyObject *ox, *oy;
     double x, y, r;