maemo.org - Talk - maemo-sdk: error: 'NAN'/'INFINITY' undeclared

When compiling code on scratchbox2 I got
error: 'NAN' undeclared
and
error: 'INFINITY' undeclared

I made simple test case, and it seems there are no defined NAN or INFINITY.

Same code complies under Ubuntu. I checked math.h and nan.h.

Code:

diff -u /usr/include/math.h ~/.maemo-sdk/rootstraps/armel/fremantle5.0minimal_armel/usr/include/math.h

diff -u /usr/include/bits/nan.h ~/.maemo-sdk/rootstraps/armel/fremantle5.0minimal_armel/usr/include/bits/nan.h

nan.h is identical. math.h differs on comments.

Code with workaround. Why this workaround is needed?

Code:

#include <math.h>



//Workaround:

#ifndef NAN

#define NAN (0.0/0.0)

#endif 



//Workaround:

#ifndef INFINITY

#define INFINITY (1.0/0.0)

#endif 



int main() {

  printf("NAN: %f\n",NAN);

  printf("INFINITY: %f\n",INFINITY);

  return 0;

}