Define ISO C 9X stuff only if included from math.h and __USE_ISOC9X is

defined.

diff --git a/sysdeps/alpha/fpu/bits/mathdef.h b/sysdeps/alpha/fpu/bits/mathdef.h
index 2ff626d..5ee9644 100644 (file)
--- a/sysdeps/alpha/fpu/bits/mathdef.h
+++ b/sysdeps/alpha/fpu/bits/mathdef.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,56 +16,65 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _MATH_H
+#if !defined _MATH_H && !defined _COMPLEX_H
 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
 #endif
 
 /* FIXME! This file describes properties of the compiler, not the machine;
    it should not be part of libc!  */
 
-#ifdef __GNUC__
-# if __STDC__ == 1
+#if defined __USE_ISOC9X && defined _MATH_H
+# ifdef __GNUC__
+#  if __STDC__ == 1
 
 /* In GNU or ANSI mode, gcc leaves `float' expressions as-is.  */
 typedef float float_t;
 typedef double double_t;
 
 /* Signal that types stay as they were declared.  */
-#  define FLT_EVAL_METHOD      0
+#   define FLT_EVAL_METHOD     0
 
 /* Define `INFINITY' as value of type `float'.  */
-#  define INFINITY     HUGE_VALF
+#   define INFINITY    HUGE_VALF
 
-# else
+#  else
 
 /* For `gcc -traditional', `float' expressions are evaluated as `double'. */
 typedef double float_t;
 typedef double double_t;
 
 /* Signal that both types are `double'.  */
-#  define FLT_EVAL_METHOD      1
+#   define FLT_EVAL_METHOD     1
 
 /* Define `INFINITY' as value of type `float'.  */
-#  define INFINITY     HUGE_VALF
+#   define INFINITY    HUGE_VALF
 
-# endif
-#else
+#  endif
+# else
 
 /* Wild guess at types for float_t and double_t. */
 typedef double float_t;
 typedef double double_t;
 
 /* Strange compiler, we don't know how it works.  */
-# define FLT_EVAL_METHOD       -1
+#  define FLT_EVAL_METHOD      -1
 
 /* Define `INFINITY' as value of type `float'.  */
-# define INFINITY      HUGE_VALF
+#  define INFINITY     HUGE_VALF
 
-#endif
+# endif
 
 /* The values returned by `ilogb' for 0 and NaN respectively.  */
-#define FP_ILOGB0     0x80000001
-#define FP_ILOGBNAN   0x7fffffff
+# define FP_ILOGB0     0x80000001
+# define FP_ILOGBNAN   0x7fffffff
 
 /* Number of decimal digits for the `double' type.  */
-#define DECIMAL_DIG    15
+# define DECIMAL_DIG   15
+
+#endif /* ISO C 9X */
+
+#ifndef __NO_LONG_DOUBLE_MATH
+/* Signal that we do not really have a `long double'.  The disables the
+   declaration of all the `long double' function variants.  */
+# define __NO_LONG_DOUBLE_MATH 1
+#endif

diff --git a/sysdeps/m68k/fpu/bits/mathdef.h b/sysdeps/m68k/fpu/bits/mathdef.h
index 5bad57b..250f0f3 100644 (file)
--- a/sysdeps/m68k/fpu/bits/mathdef.h
+++ b/sysdeps/m68k/fpu/bits/mathdef.h
@@ -16,11 +16,11 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _MATH_H
+#if !defined _MATH_H && !defined _COMPLEX_H
 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
 #endif
 
-#ifdef __USE_ISOC9X
+#if defined __USE_ISOC9X && defined _MATH_H
 /* The m68k FPUs evaluate all values in the 96 bit floating-point format
    which is also available for the user as `long double'.  Therefore we
    define: */