/* Test for NaN that does not need libm.
- Copyright (C) 2007-2010 Free Software Foundation, Inc.
+ Copyright (C) 2007-2012 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
# elif defined isnan
# undef isnanf
# define isnanf(x) isnan ((float)(x))
+# else
+ /* Get declaration of isnanf(), if not declared in <math.h>. */
+# if defined __sgi
+ /* We can't include <ieeefp.h>, because it conflicts with our definition of
+ isnand. Therefore declare isnanf separately. */
+extern int isnanf (float x);
+# endif
# endif
#else
/* Test whether X is a NaN. */