Update.

1998-11-10  Ulrich Drepper  <drepper@cygnus.com>

	* math/cabs.c: Replace complex by _Complex.
	* math/cabsf.c: Likewise.
	* math/cabsl.c: Likewise.
	* math/cimag.c: Likewise.
	* math/cimagf.c: Likewise.
	* math/cimagl.c: Likewise.
	* math/conj.c: Likewise.
	* math/conjf.c: Likewise.
	* math/conjl.c: Likewise.
	* math/creal.c: Likewise.
	* math/crealf.c: Likewise.
	* math/creall.c: Likewise.

	* sysdeps/alpha/fpu/bits/mathdef.h: Define ISO C 9X stuff only if
	included from math.h and __USE_ISOC9X is defined.
	* sysdeps/generic/bits/mathdef.h: Likewise.
	* sysdeps/generic/i386/fpu/mathdef.h: Likewise.
	* sysdeps/generic/m68k/fpu/mathdef.h: Likewise.
	* sysdeps/generic/powerpc/bits/mathdef.h: Likewise.
	* sysdeps/generic/sparc/fpu/bits/mathdef.h: Likewise.

1998-11-10  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/i386/fpu/bits/mathdef.h: Allow direct inclusion by
	<complex.h>.
	* sysdeps/alpha/fpu/bits/mathdef.h: Likewise.
	* sysdeps/generic/bits/mathdef.h: Likewise.
	* sysdeps/m68k/fpu/bits/mathdef.h: Likewise.
	* sysdeps/powerpc/bits/mathdef.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathdef.h: Likewise.

1998-11-09  Ulrich Drepper  <drepper@cygnus.com>

	* extra-lib.mk: Fix typo in last change.

21 files changed, 156 insertions, 90 deletions

diff --git a/ChangeLog b/ChangeLog
index e6eb62ac88..73c2f35873 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,39 @@
-1998-11-09 18:16  Ulrich Drepper  <drepper@cygnus.com>
+1998-11-10  Ulrich Drepper  <drepper@cygnus.com>
+
+	* math/cabs.c: Replace complex by _Complex.
+	* math/cabsf.c: Likewise.
+	* math/cabsl.c: Likewise.
+	* math/cimag.c: Likewise.
+	* math/cimagf.c: Likewise.
+	* math/cimagl.c: Likewise.
+	* math/conj.c: Likewise.
+	* math/conjf.c: Likewise.
+	* math/conjl.c: Likewise.
+	* math/creal.c: Likewise.
+	* math/crealf.c: Likewise.
+	* math/creall.c: Likewise.
+
+	* sysdeps/alpha/fpu/bits/mathdef.h: Define ISO C 9X stuff only if
+	included from math.h and __USE_ISOC9X is defined.
+	* sysdeps/generic/bits/mathdef.h: Likewise.
+	* sysdeps/generic/i386/fpu/mathdef.h: Likewise.
+	* sysdeps/generic/m68k/fpu/mathdef.h: Likewise.
+	* sysdeps/generic/powerpc/bits/mathdef.h: Likewise.
+	* sysdeps/generic/sparc/fpu/bits/mathdef.h: Likewise.
+
+1998-11-10  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
+
+	* sysdeps/i386/fpu/bits/mathdef.h: Allow direct inclusion by
+	<complex.h>.
+	* sysdeps/alpha/fpu/bits/mathdef.h: Likewise.
+	* sysdeps/generic/bits/mathdef.h: Likewise.
+	* sysdeps/m68k/fpu/bits/mathdef.h: Likewise.
+	* sysdeps/powerpc/bits/mathdef.h: Likewise.
+	* sysdeps/sparc/fpu/bits/mathdef.h: Likewise.
+
+1998-11-09  Ulrich Drepper  <drepper@cygnus.com>
+
+	* extra-lib.mk: Fix typo in last change.
 
 	* math/complex.h: Include bits/mathdef.h to get __NO_LONG_DOUBLE_MATH
 	is needed.
diff --git a/bits/mathdef.h b/bits/mathdef.h
index b034c5c99d..0d1c4d7374 100644
--- a/bits/mathdef.h
+++ b/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
 /* 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
@@ -44,6 +44,8 @@ typedef double double_t;	/* `double' expressions are evaluated as
 
 #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
+# define __NO_LONG_DOUBLE_MATH	1
+#endif
diff --git a/extra-lib.mk b/extra-lib.mk
index e33f958ad7..6216ce9e3b 100644
--- a/extra-lib.mk
+++ b/extra-lib.mk
@@ -47,7 +47,7 @@ endif
 
 
 # Use o-iterator.mk to generate a rule for each flavor of library.
-ifneq (,$(filter-out .os,$(object-suffices-$(lib))))
+ifneq (,$(filter-out .os,$(object-suffixes-$(lib))))
 define o-iterator-doit
 $(objpfx)$(patsubst %,$(libtype$o),$(lib:lib%=%)): \
   $(patsubst %,$(objpfx)%$o,\
diff --git a/math/cabs.c b/math/cabs.c
index cf775ded95..e91258c1dc 100644
--- a/math/cabs.c
+++ b/math/cabs.c
@@ -1,5 +1,5 @@
 /* Return the complex absolute value of double complex value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -22,7 +22,7 @@
 #include <math.h>
 
 double
-__cabs (double complex z)
+__cabs (double _Complex z)
 {
   return __hypot (__real__ z, __imag__ z);
 }
diff --git a/math/cabsf.c b/math/cabsf.c
index 2ea2660d97..ea02b8f38a 100644
--- a/math/cabsf.c
+++ b/math/cabsf.c
@@ -1,5 +1,5 @@
 /* Return the complex absolute value of float complex value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -22,7 +22,7 @@
 #include <math.h>
 
 float
-__cabsf (float complex z)
+__cabsf (float _Complex z)
 {
   return __hypotf (__real__ z, __imag__ z);
 }
diff --git a/math/cabsl.c b/math/cabsl.c
index 1f3554cef2..15e1274990 100644
--- a/math/cabsl.c
+++ b/math/cabsl.c
@@ -1,5 +1,5 @@
 /* Return the complex absolute value of long double complex value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -22,7 +22,7 @@
 #include <math.h>
 
 long double
-__cabsl (long double complex z)
+__cabsl (long double _Complex z)
 {
   return __hypotl (__real__ z, __imag__ z);
 }
diff --git a/math/cimag.c b/math/cimag.c
index 13efa1476e..ddd9b00708 100644
--- a/math/cimag.c
+++ b/math/cimag.c
@@ -1,5 +1,5 @@
 /* Return imaginary part of complex double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -21,7 +21,7 @@
 #include <complex.h>
 
 double
-__cimag (double complex z)
+__cimag (double _Complex z)
 {
   return __imag__ z;
 }
diff --git a/math/cimagf.c b/math/cimagf.c
index 8edb4e613e..bef73eb46d 100644
--- a/math/cimagf.c
+++ b/math/cimagf.c
@@ -1,5 +1,5 @@
 /* Return imaginary part of complex float value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -21,7 +21,7 @@
 #include <complex.h>
 
 float
-__cimagf (float complex z)
+__cimagf (float _Complex z)
 {
   return __imag__ z;
 }
diff --git a/math/cimagl.c b/math/cimagl.c
index 9c58899274..b033413a0f 100644
--- a/math/cimagl.c
+++ b/math/cimagl.c
@@ -1,5 +1,5 @@
 /* Return imaginary part of complex long double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -21,7 +21,7 @@
 #include <complex.h>
 
 long double
-__cimagl (long double complex z)
+__cimagl (long double _Complex z)
 {
   return __imag__ z;
 }
diff --git a/math/conj.c b/math/conj.c
index c15c417e4c..368c169274 100644
--- a/math/conj.c
+++ b/math/conj.c
@@ -1,5 +1,5 @@
 /* Return complex conjugate of complex double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,8 +20,8 @@
 
 #include <complex.h>
 
-double complex
-__conj (double complex z)
+double _Complex
+__conj (double _Complex z)
 {
   return ~z;
 }
diff --git a/math/conjf.c b/math/conjf.c
index 828edaf2b7..5a3329acce 100644
--- a/math/conjf.c
+++ b/math/conjf.c
@@ -1,5 +1,5 @@
 /* Return complex conjugate of complex float value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,8 +20,8 @@
 
 #include <complex.h>
 
-float complex
-__conjf (float complex z)
+float _Complex
+__conjf (float _Complex z)
 {
   return ~z;
 }
diff --git a/math/conjl.c b/math/conjl.c
index 9e44dc32a1..6a4e105306 100644
--- a/math/conjl.c
+++ b/math/conjl.c
@@ -1,5 +1,5 @@
 /* Return complex conjugate of complex long double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,8 +20,8 @@
 
 #include <complex.h>
 
-long double complex
-__conjl (long double complex z)
+long double _Complex
+__conjl (long double _Complex z)
 {
   return ~z;
 }
diff --git a/math/creal.c b/math/creal.c
index c3ec4f7802..09d9185ab5 100644
--- a/math/creal.c
+++ b/math/creal.c
@@ -1,5 +1,5 @@
 /* Return real part of complex double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -21,7 +21,7 @@
 #include <complex.h>
 
 double
-__creal (double complex z)
+__creal (double _Complex z)
 {
   return __real__ z;
 }
diff --git a/math/crealf.c b/math/crealf.c
index bb9c2c1418..3930e4fca8 100644
--- a/math/crealf.c
+++ b/math/crealf.c
@@ -1,5 +1,5 @@
 /* Return real part of complex float value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -21,7 +21,7 @@
 #include <complex.h>
 
 float
-__crealf (float complex z)
+__crealf (float _Complex z)
 {
   return __real__ z;
 }
diff --git a/math/creall.c b/math/creall.c
index 0ab1aab2cb..fe485bb1b4 100644
--- a/math/creall.c
+++ b/math/creall.c
@@ -1,5 +1,5 @@
 /* Return real part of complex long double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -21,7 +21,7 @@
 #include <complex.h>
 
 long double
-__creall (long double complex z)
+__creall (long double _Complex z)
 {
   return __real__ z;
 }
diff --git a/sysdeps/alpha/fpu/bits/mathdef.h b/sysdeps/alpha/fpu/bits/mathdef.h
index 2ff626d089..5ee9644469 100644
--- 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/generic/bits/mathdef.h b/sysdeps/generic/bits/mathdef.h
index b034c5c99d..0d1c4d7374 100644
--- a/sysdeps/generic/bits/mathdef.h
+++ b/sysdeps/generic/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
 /* 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
@@ -44,6 +44,8 @@ typedef double double_t;	/* `double' expressions are evaluated as
 
 #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
+# define __NO_LONG_DOUBLE_MATH	1
+#endif
diff --git a/sysdeps/i386/fpu/bits/mathdef.h b/sysdeps/i386/fpu/bits/mathdef.h
index 7dec1ab222..61d4ef3610 100644
--- a/sysdeps/i386/fpu/bits/mathdef.h
+++ b/sysdeps/i386/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 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:  */
diff --git a/sysdeps/m68k/fpu/bits/mathdef.h b/sysdeps/m68k/fpu/bits/mathdef.h
index 5bad57bcc3..250f0f3929 100644
--- 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: */
diff --git a/sysdeps/powerpc/bits/mathdef.h b/sysdeps/powerpc/bits/mathdef.h
index 3923a5401a..1dcd2e7714 100644
--- a/sysdeps/powerpc/bits/mathdef.h
+++ b/sysdeps/powerpc/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
@@ -16,7 +16,7 @@
    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
 
@@ -27,8 +27,9 @@
    FIXME! This file does not deal with the -fshort-double option of
    gcc! */
 
-#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;		/* `float' expressions are evaluated as
@@ -37,12 +38,12 @@ typedef double double_t;	/* `double' expressions are evaluated as
 				   `double'.  */
 
 /* 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;		/* `float' expressions are evaluated as
@@ -51,29 +52,37 @@ 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
 
-# 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/sparc/fpu/bits/mathdef.h b/sysdeps/sparc/fpu/bits/mathdef.h
index 135531067b..c1727b66bb 100644
--- a/sysdeps/sparc/fpu/bits/mathdef.h
+++ b/sysdeps/sparc/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