Update.

	* math/math.h: Unconditionally include bits/mathdef.h.  Declare
	long double functions only if __NO_LONG_DOUBLE_MATH is not
	defined.
	* sysdeps/generic/bits/mathdef.h: Define only if __USE_ISOC9X.
	Define __NO_LONG_DOUBLE_MATH.
	* sysdeps/m68k/fpu/bits/mathdef.h: Define only if __USE_ISOC9X.
	* sysdeps/i386/fpu/bits/mathdef.h: Likewise.

3 files changed, 31 insertions, 21 deletions

diff --git a/sysdeps/generic/bits/mathdef.h b/sysdeps/generic/bits/mathdef.h
index 15140997c0..b034c5c99d 100644
--- a/sysdeps/generic/bits/mathdef.h
+++ b/sysdeps/generic/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
@@ -20,7 +20,7 @@
 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
 #endif
 
-
+#ifdef __USE_ISOC9X
 /* Normally, there is no long double type and the `float' and `double'
    expressions are evaluated as `double'.  */
 typedef double float_t;		/* `float' expressions are evaluated as
@@ -29,15 +29,21 @@ typedef double double_t;	/* `double' expressions are evaluated as
 				   `double'.  */
 
 /* 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
 
 
 /* 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 */
+
+/* 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
diff --git a/sysdeps/i386/fpu/bits/mathdef.h b/sysdeps/i386/fpu/bits/mathdef.h
index 9d0bd840a3..7dec1ab222 100644
--- a/sysdeps/i386/fpu/bits/mathdef.h
+++ b/sysdeps/i386/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
@@ -20,7 +20,7 @@
 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
 #endif
 
-
+#ifdef __USE_ISOC9X
 /* The ix87 FPUs evaluate all values in the 80 bit floating-point format
    which is also available for the user as `long double'.  Therefore we
    define:  */
@@ -30,14 +30,16 @@ typedef long double double_t;	/* `double' expressions are evaluated as
 				   `long double'.  */
 
 /* Signal that both types are `long double'.  */
-#define FLT_EVAL_METHOD	2
+# define FLT_EVAL_METHOD	2
 
 /* Define `INFINITY' as value of type `float'.  */
-#define INFINITY	HUGE_VALF
+# define INFINITY	HUGE_VALF
 
 /* The values returned by `ilogb' for 0 and NaN respectively.  */
-#define FP_ILOGB0	0x80000000
-#define FP_ILOGBNAN	0x80000000
+# define FP_ILOGB0	0x80000000
+# define FP_ILOGBNAN	0x80000000
 
 /* Number of decimal digits for the `long double' type.  */
-#define DECIMAL_DIG	18
+# define DECIMAL_DIG	18
+
+#endif	/* ISO C 9X */
diff --git a/sysdeps/m68k/fpu/bits/mathdef.h b/sysdeps/m68k/fpu/bits/mathdef.h
index e3d33a53a2..5bad57bcc3 100644
--- a/sysdeps/m68k/fpu/bits/mathdef.h
+++ b/sysdeps/m68k/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
@@ -20,7 +20,7 @@
 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
 #endif
 
-
+#ifdef __USE_ISOC9X
 /* 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: */
@@ -30,14 +30,16 @@ typedef long double double_t;	/* `double' expressions are evaluated as
 				   `long double'.  */
 
 /* Signal that both types are `long double'.  */
-#define FLT_EVAL_METHOD	2
+# define FLT_EVAL_METHOD	2
 
 /* Define `INFINITY' as value of type `float'.  */
-#define INFINITY	HUGE_VALF
+# define INFINITY	HUGE_VALF
 
 /* The values returned by `ilogb' for 0 and NaN respectively.  */
-#define FP_ILOGB0	0x80000000
-#define FP_ILOGBNAN	0x7fffffff
+# define FP_ILOGB0	0x80000000
+# define FP_ILOGBNAN	0x7fffffff
 
 /* Number of decimal digits for the `long double' type.  */
-#define DECIMAL_DIG	18
+# define DECIMAL_DIG	18
+
+#endif	/* ISO C 9X */