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authorFelix Fietkau <nbd@openwrt.org>2009-05-07 13:20:47 +0000
committerFelix Fietkau <nbd@openwrt.org>2009-05-07 13:20:47 +0000
commitb266035a370ff86336a22ab818dfb12b99ac6deb (patch)
treedf817c42851dbc1a3f820702275a5276d6367dac /toolchain/uClibc/patches-0.9.30.1
parent8735a1c80cae6482123ba260ce780944ef64a618 (diff)
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uclibc 0.9.30.1: add c99 long double math fix from gentoo (thx, ralph)
fixes compile error on powerpc git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15670 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'toolchain/uClibc/patches-0.9.30.1')
-rw-r--r--toolchain/uClibc/patches-0.9.30.1/150-c99_ldbl_math.patch474
1 files changed, 474 insertions, 0 deletions
diff --git a/toolchain/uClibc/patches-0.9.30.1/150-c99_ldbl_math.patch b/toolchain/uClibc/patches-0.9.30.1/150-c99_ldbl_math.patch
new file mode 100644
index 0000000000..f3718431ea
--- /dev/null
+++ b/toolchain/uClibc/patches-0.9.30.1/150-c99_ldbl_math.patch
@@ -0,0 +1,474 @@
+Index: uClibc-0.9.30.1/libm/ldouble_wrappers.c
+===================================================================
+--- uClibc-0.9.30.1/libm/ldouble_wrappers.c (revision 25552)
++++ uClibc-0.9.30.1/libm/ldouble_wrappers.c (working copy)
+@@ -13,6 +13,16 @@
+ #include "math.h"
+ #include <complex.h>
+
++#if defined __NO_LONG_DOUBLE_MATH
++# define int_WRAPPER_C99(func) /* not needed */
++# else
++# define int_WRAPPER_C99(func) \
++int func##l(long double x) \
++{ \
++ return func((double) x); \
++} \
++libm_hidden_def(func##l)
++#endif
+
+ /* Implement the following, as defined by SuSv3 */
+ #if 0
+@@ -543,46 +553,28 @@ long double truncl (long double x)
+ #endif
+
+
+-#ifdef __DO_C99_MATH__
++#if defined __DO_C99_MATH__
+
+ #ifdef L_fpclassifyl
+-int __fpclassifyl (long double x)
+-{
+- return __fpclassify ( (double) x );
+-}
+-libm_hidden_def(__fpclassifyl)
++int_WRAPPER_C99(__fpclassify)
+ #endif
+
+ #ifdef L_finitel
+-int __finitel (long double x)
+-{
+- return __finite ( (double)x );
+-}
+-libm_hidden_def(__finitel)
++int_WRAPPER_C99(__finite)
+ #endif
+
+ #ifdef L_signbitl
+-int __signbitl (long double x)
+-{
+- return __signbitl ( (double)x );
+-}
+-libm_hidden_def(__signbitl)
++int_WRAPPER_C99(__signbit)
+ #endif
+
+ #ifdef L_isnanl
+-int __isnanl (long double x)
+-{
+- return __isnan ( (double)x );
+-}
+-libm_hidden_def(__isnanl)
++int_WRAPPER_C99(__isnan)
+ #endif
+
+ #ifdef L_isinfl
+-int __isinfl (long double x)
+-{
+- return __isinf ( (double)x );
+-}
+-libm_hidden_def(__isinfl)
++int_WRAPPER_C99(__isinf)
+ #endif
+
+-#endif
++#endif /* DO_C99_MATH */
++
++#undef int_WRAPPER_C99
+Index: uClibc-0.9.30.1/libm/nan.c
+===================================================================
+--- uClibc-0.9.30.1/libm/nan.c (revision 25552)
++++ uClibc-0.9.30.1/libm/nan.c (working copy)
+@@ -45,7 +45,7 @@ float nanf (const char *tagp)
+ }
+ libm_hidden_def(nanf)
+
+-#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && !defined __NO_LONG_DOUBLE_MATH
+ libm_hidden_proto(nanl)
+ long double nanl (const char *tagp)
+ {
+Index: uClibc-0.9.30.1/include/math.h
+===================================================================
+--- uClibc-0.9.30.1/include/math.h (revision 25552)
++++ uClibc-0.9.30.1/include/math.h (working copy)
+@@ -118,7 +118,7 @@ __BEGIN_DECLS
+ # undef __MATH_PRECNAME
+
+ # if (__STDC__ - 0 || __GNUC__ - 0) \
+- && (defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ || defined __LDBL_COMPAT)
++ && (!defined __NO_LONG_DOUBLE_MATH || defined __LDBL_COMPAT)
+ # ifdef __LDBL_COMPAT
+
+ # ifdef __USE_ISOC99
+@@ -230,7 +230,7 @@ enum
+ };
+
+ /* Return number of classification appropriate for X. */
+-# ifndef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifdef __NO_LONG_DOUBLE_MATH
+ # define fpclassify(x) \
+ (sizeof (x) == sizeof (float) ? __fpclassifyf (x) : __fpclassify (x))
+ # else
+@@ -242,7 +242,7 @@ enum
+ # endif
+
+ /* Return nonzero value if sign of X is negative. */
+-# ifndef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifdef __NO_LONG_DOUBLE_MATH
+ # define signbit(x) \
+ (sizeof (x) == sizeof (float) ? __signbitf (x) : __signbit (x))
+ # else
+@@ -254,7 +254,7 @@ enum
+ # endif
+
+ /* Return nonzero value if X is not +-Inf or NaN. */
+-# ifndef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifdef __NO_LONG_DOUBLE_MATH
+ # define isfinite(x) \
+ (sizeof (x) == sizeof (float) ? __finitef (x) : __finite (x))
+ # else
+@@ -270,7 +270,7 @@ enum
+
+ /* Return nonzero value if X is a NaN. We could use `fpclassify' but
+ we already have this functions `__isnan' and it is faster. */
+-# ifndef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifdef __NO_LONG_DOUBLE_MATH
+ # define isnan(x) \
+ (sizeof (x) == sizeof (float) ? __isnanf (x) : __isnan (x))
+ # else
+@@ -282,7 +282,7 @@ enum
+ # endif
+
+ /* Return nonzero value is X is positive or negative infinity. */
+-# ifndef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifdef __NO_LONG_DOUBLE_MATH
+ # define isinf(x) \
+ (sizeof (x) == sizeof (float) ? __isinff (x) : __isinf (x))
+ # else
+Index: uClibc-0.9.30.1/include/tgmath.h
+===================================================================
+--- uClibc-0.9.30.1/include/tgmath.h (revision 25552)
++++ uClibc-0.9.30.1/include/tgmath.h (working copy)
+@@ -36,7 +36,7 @@
+
+ #if __GNUC_PREREQ (2, 7)
+
+-# ifndef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifdef __NO_LONG_DOUBLE_MATH
+ # define __tgml(fct) fct
+ # else
+ # define __tgml(fct) fct ## l
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/powerpc/bits/wordsize.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/powerpc/bits/wordsize.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/powerpc/bits/wordsize.h (working copy)
+@@ -7,13 +7,13 @@
+ # define __WORDSIZE 32
+ #endif
+
+-#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && !defined __LONG_DOUBLE_MATH_OPTIONAL
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
+
+ /* Signal the glibc ABI didn't used to have a `long double'.
+ The changes all the `long double' function variants to be redirects
+ to the double functions. */
+ # define __LONG_DOUBLE_MATH_OPTIONAL 1
+ # ifndef __LONG_DOUBLE_128__
+-# undef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ # endif
+ #endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/powerpc/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/powerpc/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/powerpc/bits/mathdef.h (working copy)
+@@ -65,11 +65,13 @@ typedef double double_t;
+
+ #endif /* ISO C99 */
+
+-#ifdef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++#ifndef __NO_LONG_DOUBLE_MATH
+ #include <bits/wordsize.h>
+ /* Signal that we do not really have a `long double'. The disables the
+ declaration of all the `long double' function variants. */
+ # if __WORDSIZE == 32
+-# undef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++# elif !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ # endif /* __WORDSIZE == 32 */
+-#endif /* __UCLIBC_HAS_LONG_DOUBLE_MATH__ */
++#endif /* __NO_LONG_DOUBLE_MATH */
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/arm/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/arm/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/arm/bits/mathdef.h (working copy)
+@@ -34,3 +34,11 @@ typedef double double_t; /* `double' exp
+ # define FP_ILOGBNAN (2147483647)
+
+ #endif /* ISO C99 */
++
++#ifndef __NO_LONG_DOUBLE_MATH
++/* Signal that we do not really have a `long double'. This disables the
++ declaration of all the `long double' function variants. */
++/* XXX The FPA does support this but the patterns in GCC are currently
++ turned off. */
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/m68k/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/m68k/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/m68k/bits/mathdef.h (working copy)
+@@ -36,3 +36,7 @@ typedef long double double_t; /* `double
+ # define FP_ILOGBNAN (2147483647)
+
+ #endif /* ISO C99 */
++
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/alpha/bits/wordsize.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/alpha/bits/wordsize.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/alpha/bits/wordsize.h (working copy)
+@@ -18,13 +18,13 @@
+
+ #define __WORDSIZE 64
+
+-#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && !defined __LONG_DOUBLE_MATH_OPTIONAL
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
+
+ /* Signal that we didn't used to have a `long double'. The changes all
+ the `long double' function variants to be redirects to the double
+ functions. */
+ # define __LONG_DOUBLE_MATH_OPTIONAL 1
+ # ifndef __LONG_DOUBLE_128__
+-# undef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ # endif
+ #endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/alpha/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/alpha/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/alpha/bits/mathdef.h (working copy)
+@@ -78,3 +78,7 @@ typedef double double_t;
+
+ # endif /* GNUC before 3.4 */
+ #endif /* COMPLEX_H */
++
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/common/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/common/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/common/bits/mathdef.h (working copy)
+@@ -35,3 +35,9 @@ typedef double double_t; /* `double' exp
+ # define FP_ILOGBNAN 2147483647
+
+ #endif /* ISO C99 */
++
++#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
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/i386/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/i386/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/i386/bits/mathdef.h (working copy)
+@@ -44,3 +44,7 @@ typedef long double double_t; /* `double
+ # define FP_ILOGBNAN (-2147483647 - 1)
+
+ #endif /* ISO C99 */
++
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/nios2/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/nios2/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/nios2/bits/mathdef.h (working copy)
+@@ -34,3 +34,11 @@ typedef double double_t; /* `double' exp
+ # define FP_ILOGBNAN (2147483647)
+
+ #endif /* ISO C99 */
++
++#ifndef __NO_LONG_DOUBLE_MATH
++/* Signal that we do not really have a `long double'. This disables the
++ declaration of all the `long double' function variants. */
++/* XXX The FPA does support this but the patterns in GCC are currently
++ turned off. */
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/x86_64/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/x86_64/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/x86_64/bits/mathdef.h (working copy)
+@@ -46,3 +46,7 @@ typedef long double double_t; /* `double
+ # define FP_ILOGBNAN (-2147483647 - 1)
+
+ #endif /* ISO C99 */
++
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/xtensa/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/xtensa/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/xtensa/bits/mathdef.h (working copy)
+@@ -36,8 +36,8 @@ typedef double double_t; /* `double' exp
+
+ #endif /* ISO C99 */
+
+-#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++#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. */
+-# undef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ #endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/ia64/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/ia64/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/ia64/bits/mathdef.h (working copy)
+@@ -35,3 +35,7 @@ typedef double double_t; /* `double' exp
+ # define FP_ILOGBNAN 2147483647
+
+ #endif /* ISO C99 */
++
++#if !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/mips/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/mips/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/mips/bits/mathdef.h (working copy)
+@@ -39,8 +39,10 @@ typedef double double_t; /* `double' exp
+
+ #endif /* ISO C99 */
+
+-#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && _MIPS_SIM == _ABIO32
++#if ! defined __NO_LONG_DOUBLE_MATH && _MIPS_SIM == _ABIO32
+ /* Signal that we do not really have a `long double'. This disables the
+ declaration of all the `long double' function variants. */
+-# error defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ and _MIPS_SIM == _ABIO32
++# define __NO_LONG_DOUBLE_MATH 1
++#elif !defined __NO_LONG_DOUBLE_MATH && !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ #endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/nios/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/nios/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/nios/bits/mathdef.h (working copy)
+@@ -34,3 +34,11 @@ typedef double double_t; /* `double' exp
+ # define FP_ILOGBNAN (2147483647)
+
+ #endif /* ISO C99 */
++
++#ifndef __NO_LONG_DOUBLE_MATH
++/* Signal that we do not really have a `long double'. This disables the
++ declaration of all the `long double' function variants. */
++/* XXX The FPA does support this but the patterns in GCC are currently
++ turned off. */
++# define __NO_LONG_DOUBLE_MATH 1
++#endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/wordsize.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/wordsize.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/wordsize.h (working copy)
+@@ -6,7 +6,7 @@
+ # define __WORDSIZE 32
+ #endif
+
+-#if 0 /* uClibc: done in mathdefs.h: defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && !defined __LONG_DOUBLE_MATH_OPTIONAL*/
++#if 0 /* uClibc: done in mathdefs.h: !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL*/
+
+ # if __WORDSIZE == 32
+ /* Signal that in 32bit ABI we didn't used to have a `long double'.
+@@ -14,7 +14,7 @@
+ to the double functions. */
+ # define __LONG_DOUBLE_MATH_OPTIONAL 1
+ # ifndef __LONG_DOUBLE_128__
+-# undef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ # endif
+ # endif
+ #endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/mathdef.h (working copy)
+@@ -57,13 +57,15 @@ typedef double double_t;
+
+ #endif /* ISO C99 */
+
+-#ifdef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++#ifndef __NO_LONG_DOUBLE_MATH
+
+ # if __WORDSIZE == 32
+ /* Signal that in 32bit ABI we do not really have a `long double'.
+ The disables the declaration of all the `long double' function
+ variants. */
+-# undef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
++# elif !defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# define __NO_LONG_DOUBLE_MATH 1
+ # endif
+
+ #endif
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/mathinline.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/mathinline.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/sparc/bits/mathinline.h (working copy)
+@@ -37,7 +37,7 @@
+
+ # if __WORDSIZE == 32
+
+-# ifdef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifndef __NO_LONG_DOUBLE_MATH
+
+ # define __unordered_cmp(x, y) \
+ (__extension__ \
+@@ -157,7 +157,7 @@ __NTH (__signbit (double __x))
+ return __u.__i[0] < 0;
+ }
+
+-# ifdef __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# ifndef __NO_LONG_DOUBLE_MATH
+ __MATH_INLINE int
+ __NTH (__signbitl (long double __x))
+ {
+@@ -219,7 +219,7 @@ __NTH (sqrtl (long double __x))
+ _Qp_sqrt (&__r, &__x);
+ return __r;
+ }
+-# elif defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# elif !defined __NO_LONG_DOUBLE_MATH
+ __MATH_INLINE long double
+ sqrtl (long double __x) __THROW
+ {
+@@ -257,7 +257,7 @@ __ieee754_sqrtl (long double __x)
+ _Qp_sqrt(&__r, &__x);
+ return __r;
+ }
+-# elif defined __UCLIBC_HAS_LONG_DOUBLE_MATH__
++# elif !defined __NO_LONG_DOUBLE_MATH
+ __MATH_INLINE long double
+ __ieee754_sqrtl (long double __x)
+ {
+Index: uClibc-0.9.30.1/libc/sysdeps/linux/sh/bits/mathdef.h
+===================================================================
+--- uClibc-0.9.30.1/libc/sysdeps/linux/sh/bits/mathdef.h (revision 25552)
++++ uClibc-0.9.30.1/libc/sysdeps/linux/sh/bits/mathdef.h (working copy)
+@@ -61,3 +61,9 @@ typedef double double_t;
+ # define FP_ILOGBNAN 0x7fffffff
+
+ #endif /* ISO C99 */
++
++#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