2 dnl Copyright (C) 2007-2012 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
9 AC_REQUIRE([gl_MATH_H_DEFAULTS])
10 gl_CHECK_NEXT_HEADERS([math.h])
11 AC_REQUIRE([AC_C_INLINE])
13 AC_CACHE_CHECK([whether NAN macro works], [gl_cv_header_math_nan_works],
14 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]],
15 [[/* Solaris 10 has a broken definition of NAN. Other platforms
16 fail to provide NAN, or provide it only in C99 mode; this
17 test only needs to fail when NAN is provided but wrong. */
23 [gl_cv_header_math_nan_works=yes],
24 [gl_cv_header_math_nan_works=no])])
25 if test $gl_cv_header_math_nan_works = no; then
28 AC_CACHE_CHECK([whether HUGE_VAL works], [gl_cv_header_math_huge_val_works],
29 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]],
30 [[/* Solaris 10 has a broken definition of HUGE_VAL. */
33 [gl_cv_header_math_huge_val_works=yes],
34 [gl_cv_header_math_huge_val_works=no])])
35 if test $gl_cv_header_math_huge_val_works = no; then
39 dnl Check for declarations of anything we want to poison if the
40 dnl corresponding gnulib module is not in use.
41 gl_WARN_ON_USE_PREPARE([[#include <math.h>]],
42 [acosf acosl asinf asinl atanf atanl
43 cbrt cbrtf cbrtl ceilf ceill copysign copysignf copysignl cosf cosl coshf
44 expf expl exp2 exp2f exp2l expm1 expm1f expm1l
45 fabsf fabsl floorf floorl fma fmaf fmal
46 fmod fmodf fmodl frexpf frexpl hypotf hypotl
48 logb log logf logl log10f log10l log1p log1pf log1pl log2 log2f
50 remainder remainderf remainderl
51 rint rintf rintl round roundf roundl sinf sinl sinhf sqrtf sqrtl
52 tanf tanl tanhf trunc truncf truncl])
55 AC_DEFUN([gl_MATH_MODULE_INDICATOR],
57 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
58 AC_REQUIRE([gl_MATH_H_DEFAULTS])
59 gl_MODULE_INDICATOR_SET_VARIABLE([$1])
60 dnl Define it also as a C macro, for the benefit of the unit tests.
61 gl_MODULE_INDICATOR_FOR_TESTS([$1])
64 AC_DEFUN([gl_MATH_H_DEFAULTS],
66 GNULIB_ACOSF=0; AC_SUBST([GNULIB_ACOSF])
67 GNULIB_ACOSL=0; AC_SUBST([GNULIB_ACOSL])
68 GNULIB_ASINF=0; AC_SUBST([GNULIB_ASINF])
69 GNULIB_ASINL=0; AC_SUBST([GNULIB_ASINL])
70 GNULIB_ATANF=0; AC_SUBST([GNULIB_ATANF])
71 GNULIB_ATANL=0; AC_SUBST([GNULIB_ATANL])
72 GNULIB_ATAN2F=0; AC_SUBST([GNULIB_ATAN2F])
73 GNULIB_CBRT=0; AC_SUBST([GNULIB_CBRT])
74 GNULIB_CBRTF=0; AC_SUBST([GNULIB_CBRTF])
75 GNULIB_CBRTL=0; AC_SUBST([GNULIB_CBRTL])
76 GNULIB_CEIL=0; AC_SUBST([GNULIB_CEIL])
77 GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF])
78 GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL])
79 GNULIB_COPYSIGN=0; AC_SUBST([GNULIB_COPYSIGN])
80 GNULIB_COPYSIGNF=0; AC_SUBST([GNULIB_COPYSIGNF])
81 GNULIB_COPYSIGNL=0; AC_SUBST([GNULIB_COPYSIGNL])
82 GNULIB_COSF=0; AC_SUBST([GNULIB_COSF])
83 GNULIB_COSL=0; AC_SUBST([GNULIB_COSL])
84 GNULIB_COSHF=0; AC_SUBST([GNULIB_COSHF])
85 GNULIB_EXPF=0; AC_SUBST([GNULIB_EXPF])
86 GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL])
87 GNULIB_EXP2=0; AC_SUBST([GNULIB_EXP2])
88 GNULIB_EXP2F=0; AC_SUBST([GNULIB_EXP2F])
89 GNULIB_EXP2L=0; AC_SUBST([GNULIB_EXP2L])
90 GNULIB_EXPM1=0; AC_SUBST([GNULIB_EXPM1])
91 GNULIB_EXPM1F=0; AC_SUBST([GNULIB_EXPM1F])
92 GNULIB_EXPM1L=0; AC_SUBST([GNULIB_EXPM1L])
93 GNULIB_FABSF=0; AC_SUBST([GNULIB_FABSF])
94 GNULIB_FABSL=0; AC_SUBST([GNULIB_FABSL])
95 GNULIB_FLOOR=0; AC_SUBST([GNULIB_FLOOR])
96 GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF])
97 GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL])
98 GNULIB_FMA=0; AC_SUBST([GNULIB_FMA])
99 GNULIB_FMAF=0; AC_SUBST([GNULIB_FMAF])
100 GNULIB_FMAL=0; AC_SUBST([GNULIB_FMAL])
101 GNULIB_FMOD=0; AC_SUBST([GNULIB_FMOD])
102 GNULIB_FMODF=0; AC_SUBST([GNULIB_FMODF])
103 GNULIB_FMODL=0; AC_SUBST([GNULIB_FMODL])
104 GNULIB_FREXPF=0; AC_SUBST([GNULIB_FREXPF])
105 GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
106 GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
107 GNULIB_HYPOT=0; AC_SUBST([GNULIB_HYPOT])
108 GNULIB_HYPOTF=0; AC_SUBST([GNULIB_HYPOTF])
109 GNULIB_HYPOTL=0; AC_SUBST([GNULIB_HYPOTL])
110 GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE])
111 GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF])
112 GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN])
113 GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF])
114 GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND])
115 GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL])
116 GNULIB_LDEXPF=0; AC_SUBST([GNULIB_LDEXPF])
117 GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL])
118 GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB])
119 GNULIB_LOG=0; AC_SUBST([GNULIB_LOG])
120 GNULIB_LOGF=0; AC_SUBST([GNULIB_LOGF])
121 GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL])
122 GNULIB_LOG10F=0; AC_SUBST([GNULIB_LOG10F])
123 GNULIB_LOG10L=0; AC_SUBST([GNULIB_LOG10L])
124 GNULIB_LOG1P=0; AC_SUBST([GNULIB_LOG1P])
125 GNULIB_LOG1PF=0; AC_SUBST([GNULIB_LOG1PF])
126 GNULIB_LOG1PL=0; AC_SUBST([GNULIB_LOG1PL])
127 GNULIB_LOG2=0; AC_SUBST([GNULIB_LOG2])
128 GNULIB_LOG2F=0; AC_SUBST([GNULIB_LOG2F])
129 GNULIB_MODF=0; AC_SUBST([GNULIB_MODF])
130 GNULIB_MODFF=0; AC_SUBST([GNULIB_MODFF])
131 GNULIB_MODFL=0; AC_SUBST([GNULIB_MODFL])
132 GNULIB_POWF=0; AC_SUBST([GNULIB_POWF])
133 GNULIB_REMAINDER=0; AC_SUBST([GNULIB_REMAINDER])
134 GNULIB_REMAINDERF=0; AC_SUBST([GNULIB_REMAINDERF])
135 GNULIB_REMAINDERL=0; AC_SUBST([GNULIB_REMAINDERL])
136 GNULIB_RINT=0; AC_SUBST([GNULIB_RINT])
137 GNULIB_RINTF=0; AC_SUBST([GNULIB_RINTF])
138 GNULIB_RINTL=0; AC_SUBST([GNULIB_RINTL])
139 GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND])
140 GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF])
141 GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL])
142 GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT])
143 GNULIB_SINF=0; AC_SUBST([GNULIB_SINF])
144 GNULIB_SINL=0; AC_SUBST([GNULIB_SINL])
145 GNULIB_SINHF=0; AC_SUBST([GNULIB_SINHF])
146 GNULIB_SQRTF=0; AC_SUBST([GNULIB_SQRTF])
147 GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL])
148 GNULIB_TANF=0; AC_SUBST([GNULIB_TANF])
149 GNULIB_TANL=0; AC_SUBST([GNULIB_TANL])
150 GNULIB_TANHF=0; AC_SUBST([GNULIB_TANHF])
151 GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC])
152 GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
153 GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
154 dnl Assume proper GNU behavior unless another module says otherwise.
155 HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF])
156 HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
157 HAVE_ASINF=1; AC_SUBST([HAVE_ASINF])
158 HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
159 HAVE_ATANF=1; AC_SUBST([HAVE_ATANF])
160 HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
161 HAVE_ATAN2F=1; AC_SUBST([HAVE_ATAN2F])
162 HAVE_CBRT=1; AC_SUBST([HAVE_CBRT])
163 HAVE_CBRTF=1; AC_SUBST([HAVE_CBRTF])
164 HAVE_CBRTL=1; AC_SUBST([HAVE_CBRTL])
165 HAVE_COPYSIGN=1; AC_SUBST([HAVE_COPYSIGN])
166 HAVE_COPYSIGNL=1; AC_SUBST([HAVE_COPYSIGNL])
167 HAVE_COSF=1; AC_SUBST([HAVE_COSF])
168 HAVE_COSL=1; AC_SUBST([HAVE_COSL])
169 HAVE_COSHF=1; AC_SUBST([HAVE_COSHF])
170 HAVE_EXPF=1; AC_SUBST([HAVE_EXPF])
171 HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
172 HAVE_EXPM1=1; AC_SUBST([HAVE_EXPM1])
173 HAVE_EXPM1F=1; AC_SUBST([HAVE_EXPM1F])
174 HAVE_FABSF=1; AC_SUBST([HAVE_FABSF])
175 HAVE_FABSL=1; AC_SUBST([HAVE_FABSL])
176 HAVE_FMA=1; AC_SUBST([HAVE_FMA])
177 HAVE_FMAF=1; AC_SUBST([HAVE_FMAF])
178 HAVE_FMAL=1; AC_SUBST([HAVE_FMAL])
179 HAVE_FMODF=1; AC_SUBST([HAVE_FMODF])
180 HAVE_FMODL=1; AC_SUBST([HAVE_FMODL])
181 HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF])
182 HAVE_HYPOTF=1; AC_SUBST([HAVE_HYPOTF])
183 HAVE_HYPOTL=1; AC_SUBST([HAVE_HYPOTL])
184 HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
185 HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
186 HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
187 HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF])
188 HAVE_LOGF=1; AC_SUBST([HAVE_LOGF])
189 HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
190 HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F])
191 HAVE_LOG10L=1; AC_SUBST([HAVE_LOG10L])
192 HAVE_LOG1P=1; AC_SUBST([HAVE_LOG1P])
193 HAVE_LOG1PF=1; AC_SUBST([HAVE_LOG1PF])
194 HAVE_LOG1PL=1; AC_SUBST([HAVE_LOG1PL])
195 HAVE_MODFF=1; AC_SUBST([HAVE_MODFF])
196 HAVE_MODFL=1; AC_SUBST([HAVE_MODFL])
197 HAVE_POWF=1; AC_SUBST([HAVE_POWF])
198 HAVE_REMAINDER=1; AC_SUBST([HAVE_REMAINDER])
199 HAVE_REMAINDERF=1; AC_SUBST([HAVE_REMAINDERF])
200 HAVE_RINT=1; AC_SUBST([HAVE_RINT])
201 HAVE_RINTL=1; AC_SUBST([HAVE_RINTL])
202 HAVE_SINF=1; AC_SUBST([HAVE_SINF])
203 HAVE_SINL=1; AC_SUBST([HAVE_SINL])
204 HAVE_SINHF=1; AC_SUBST([HAVE_SINHF])
205 HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF])
206 HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
207 HAVE_TANF=1; AC_SUBST([HAVE_TANF])
208 HAVE_TANL=1; AC_SUBST([HAVE_TANL])
209 HAVE_TANHF=1; AC_SUBST([HAVE_TANHF])
210 HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
211 HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
212 HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
213 HAVE_DECL_CBRTF=1; AC_SUBST([HAVE_DECL_CBRTF])
214 HAVE_DECL_CBRTL=1; AC_SUBST([HAVE_DECL_CBRTL])
215 HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF])
216 HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL])
217 HAVE_DECL_COPYSIGNF=1; AC_SUBST([HAVE_DECL_COPYSIGNF])
218 HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
219 HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
220 HAVE_DECL_EXP2=1; AC_SUBST([HAVE_DECL_EXP2])
221 HAVE_DECL_EXP2F=1; AC_SUBST([HAVE_DECL_EXP2F])
222 HAVE_DECL_EXP2L=1; AC_SUBST([HAVE_DECL_EXP2L])
223 HAVE_DECL_EXPM1L=1; AC_SUBST([HAVE_DECL_EXPM1L])
224 HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF])
225 HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL])
226 HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
227 HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
228 HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
229 HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
230 HAVE_DECL_LOG10L=1; AC_SUBST([HAVE_DECL_LOG10L])
231 HAVE_DECL_LOG2=1; AC_SUBST([HAVE_DECL_LOG2])
232 HAVE_DECL_LOG2F=1; AC_SUBST([HAVE_DECL_LOG2F])
233 HAVE_DECL_REMAINDER=1; AC_SUBST([HAVE_DECL_REMAINDER])
234 HAVE_DECL_REMAINDERL=1; AC_SUBST([HAVE_DECL_REMAINDERL])
235 HAVE_DECL_RINTF=1; AC_SUBST([HAVE_DECL_RINTF])
236 HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND])
237 HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF])
238 HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL])
239 HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
240 HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
241 HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
242 HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
243 HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
244 HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL])
245 REPLACE_CBRTF=0; AC_SUBST([REPLACE_CBRTF])
246 REPLACE_CBRTL=0; AC_SUBST([REPLACE_CBRTL])
247 REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL])
248 REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
249 REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
250 REPLACE_EXPM1=0; AC_SUBST([REPLACE_EXPM1])
251 REPLACE_EXPM1F=0; AC_SUBST([REPLACE_EXPM1F])
252 REPLACE_EXP2=0; AC_SUBST([REPLACE_EXP2])
253 REPLACE_EXP2L=0; AC_SUBST([REPLACE_EXP2L])
254 REPLACE_FABSL=0; AC_SUBST([REPLACE_FABSL])
255 REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR])
256 REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
257 REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
258 REPLACE_FMA=0; AC_SUBST([REPLACE_FMA])
259 REPLACE_FMAF=0; AC_SUBST([REPLACE_FMAF])
260 REPLACE_FMAL=0; AC_SUBST([REPLACE_FMAL])
261 REPLACE_FMOD=0; AC_SUBST([REPLACE_FMOD])
262 REPLACE_FMODF=0; AC_SUBST([REPLACE_FMODF])
263 REPLACE_FMODL=0; AC_SUBST([REPLACE_FMODL])
264 REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF])
265 REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
266 REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
267 REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
268 REPLACE_HYPOT=0; AC_SUBST([REPLACE_HYPOT])
269 REPLACE_HYPOTF=0; AC_SUBST([REPLACE_HYPOTF])
270 REPLACE_HYPOTL=0; AC_SUBST([REPLACE_HYPOTL])
271 REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
272 REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
273 REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
274 REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
275 REPLACE_LOG=0; AC_SUBST([REPLACE_LOG])
276 REPLACE_LOGF=0; AC_SUBST([REPLACE_LOGF])
277 REPLACE_LOGL=0; AC_SUBST([REPLACE_LOGL])
278 REPLACE_LOG1P=0; AC_SUBST([REPLACE_LOG1P])
279 REPLACE_LOG1PF=0; AC_SUBST([REPLACE_LOG1PF])
280 REPLACE_LOG1PL=0; AC_SUBST([REPLACE_LOG1PL])
281 REPLACE_LOG2=0; AC_SUBST([REPLACE_LOG2])
282 REPLACE_LOG2F=0; AC_SUBST([REPLACE_LOG2F])
283 REPLACE_MODF=0; AC_SUBST([REPLACE_MODF])
284 REPLACE_MODFF=0; AC_SUBST([REPLACE_MODFF])
285 REPLACE_MODFL=0; AC_SUBST([REPLACE_MODFL])
286 REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
287 REPLACE_REMAINDER=0; AC_SUBST([REPLACE_REMAINDER])
288 REPLACE_REMAINDERF=0; AC_SUBST([REPLACE_REMAINDERF])
289 REPLACE_REMAINDERL=0; AC_SUBST([REPLACE_REMAINDERL])
290 REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
291 REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
292 REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
293 REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
294 REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
295 REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC])
296 REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF])
297 REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])
300 # gl_LONG_DOUBLE_VS_DOUBLE
301 # determines whether 'long double' and 'double' have the same representation.
302 # Sets variable HAVE_SAME_LONG_DOUBLE_AS_DOUBLE to 0 or 1, and defines
303 # HAVE_SAME_LONG_DOUBLE_AS_DOUBLE accordingly.
304 # The currently known platforms where this is the case are:
305 # Linux/HPPA, Minix 3.1.8, AIX 5, AIX 6 and 7 with xlc, MSVC 9.
306 AC_DEFUN([gl_LONG_DOUBLE_VS_DOUBLE],
308 AC_CACHE_CHECK([whether long double and double are the same],
309 [gl_cv_long_double_equals_double],
311 [AC_LANG_PROGRAM([[#include <float.h>]],
312 [[typedef int check[sizeof (long double) == sizeof (double)
313 && LDBL_MANT_DIG == DBL_MANT_DIG
314 && LDBL_MAX_EXP == DBL_MAX_EXP
315 && LDBL_MIN_EXP == DBL_MIN_EXP
318 [gl_cv_long_double_equals_double=yes],
319 [gl_cv_long_double_equals_double=no])
321 if test $gl_cv_long_double_equals_double = yes; then
322 AC_DEFINE([HAVE_SAME_LONG_DOUBLE_AS_DOUBLE], [1],
323 [Define to 1 if 'long double' and 'double' have the same representation.])
324 HAVE_SAME_LONG_DOUBLE_AS_DOUBLE=1
326 HAVE_SAME_LONG_DOUBLE_AS_DOUBLE=0
328 AC_SUBST([HAVE_SAME_LONG_DOUBLE_AS_DOUBLE])