summaryrefslogtreecommitdiff
path: root/patches/uClibc/0.9.30.1/160-c99-ldbl-math.patch
blob: f44f32c16dbf6cc7dcc6d4766fb4f9de395db9f7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
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