/* FIXME! This file describes properties of the compiler, not the machine;
it should not be part of libc! */
-#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+#if defined __USE_ISOC9X && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
# ifdef __GNUC__
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
-#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+#if defined __USE_ISOC9X && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
/* The ix87 FPUs evaluate all values in the 80 bit floating-point format
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
-#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+#if defined __USE_ISOC9X && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
/* The m68k FPUs evaluate all values in the 96 bit floating-point format
FIXME! This file does not deal with the -fshort-double option of
gcc! */
-#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+#if defined __USE_ISOC9X && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
# ifdef __GNUC__