2 dnl Copyright (C) 2007-2011 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 ceilf ceill cosf cosl coshf
43 expf expl fabsf floorf floorl fmodf frexpf frexpl
44 ldexpf ldexpl logb logf logl log10f modff powf
45 round roundf roundl sinf sinl sinhf sqrtf sqrtl
46 tanf tanl trunc truncf truncl])
49 AC_DEFUN([gl_MATH_MODULE_INDICATOR],
51 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
52 AC_REQUIRE([gl_MATH_H_DEFAULTS])
53 gl_MODULE_INDICATOR_SET_VARIABLE([$1])
54 dnl Define it also as a C macro, for the benefit of the unit tests.
55 gl_MODULE_INDICATOR_FOR_TESTS([$1])
58 AC_DEFUN([gl_MATH_H_DEFAULTS],
60 GNULIB_ACOSF=0; AC_SUBST([GNULIB_ACOSF])
61 GNULIB_ACOSL=0; AC_SUBST([GNULIB_ACOSL])
62 GNULIB_ASINF=0; AC_SUBST([GNULIB_ASINF])
63 GNULIB_ASINL=0; AC_SUBST([GNULIB_ASINL])
64 GNULIB_ATANF=0; AC_SUBST([GNULIB_ATANF])
65 GNULIB_ATANL=0; AC_SUBST([GNULIB_ATANL])
66 GNULIB_ATAN2F=0; AC_SUBST([GNULIB_ATAN2F])
67 GNULIB_CEIL=0; AC_SUBST([GNULIB_CEIL])
68 GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF])
69 GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL])
70 GNULIB_COSF=0; AC_SUBST([GNULIB_COSF])
71 GNULIB_COSL=0; AC_SUBST([GNULIB_COSL])
72 GNULIB_COSHF=0; AC_SUBST([GNULIB_COSHF])
73 GNULIB_EXPF=0; AC_SUBST([GNULIB_EXPF])
74 GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL])
75 GNULIB_FABSF=0; AC_SUBST([GNULIB_FABSF])
76 GNULIB_FLOOR=0; AC_SUBST([GNULIB_FLOOR])
77 GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF])
78 GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL])
79 GNULIB_FMODF=0; AC_SUBST([GNULIB_FMODF])
80 GNULIB_FREXPF=0; AC_SUBST([GNULIB_FREXPF])
81 GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
82 GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
83 GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE])
84 GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF])
85 GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN])
86 GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF])
87 GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND])
88 GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL])
89 GNULIB_LDEXPF=0; AC_SUBST([GNULIB_LDEXPF])
90 GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL])
91 GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB])
92 GNULIB_LOGF=0; AC_SUBST([GNULIB_LOGF])
93 GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL])
94 GNULIB_LOG10F=0; AC_SUBST([GNULIB_LOG10F])
95 GNULIB_MODFF=0; AC_SUBST([GNULIB_MODFF])
96 GNULIB_POWF=0; AC_SUBST([GNULIB_POWF])
97 GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND])
98 GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF])
99 GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL])
100 GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT])
101 GNULIB_SINF=0; AC_SUBST([GNULIB_SINF])
102 GNULIB_SINL=0; AC_SUBST([GNULIB_SINL])
103 GNULIB_SINHF=0; AC_SUBST([GNULIB_SINHF])
104 GNULIB_SQRTF=0; AC_SUBST([GNULIB_SQRTF])
105 GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL])
106 GNULIB_TANF=0; AC_SUBST([GNULIB_TANF])
107 GNULIB_TANL=0; AC_SUBST([GNULIB_TANL])
108 GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC])
109 GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
110 GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
111 dnl Assume proper GNU behavior unless another module says otherwise.
112 HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF])
113 HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
114 HAVE_ASINF=1; AC_SUBST([HAVE_ASINF])
115 HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
116 HAVE_ATANF=1; AC_SUBST([HAVE_ATANF])
117 HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
118 HAVE_ATAN2F=1; AC_SUBST([HAVE_ATAN2F])
119 HAVE_COSF=1; AC_SUBST([HAVE_COSF])
120 HAVE_COSL=1; AC_SUBST([HAVE_COSL])
121 HAVE_COSHF=1; AC_SUBST([HAVE_COSHF])
122 HAVE_EXPF=1; AC_SUBST([HAVE_EXPF])
123 HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
124 HAVE_FABSF=1; AC_SUBST([HAVE_FABSF])
125 HAVE_FMODF=1; AC_SUBST([HAVE_FMODF])
126 HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF])
127 HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
128 HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
129 HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
130 HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF])
131 HAVE_LOGF=1; AC_SUBST([HAVE_LOGF])
132 HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
133 HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F])
134 HAVE_MODFF=1; AC_SUBST([HAVE_MODFF])
135 HAVE_POWF=1; AC_SUBST([HAVE_POWF])
136 HAVE_SINF=1; AC_SUBST([HAVE_SINF])
137 HAVE_SINL=1; AC_SUBST([HAVE_SINL])
138 HAVE_SINHF=1; AC_SUBST([HAVE_SINHF])
139 HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF])
140 HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
141 HAVE_TANF=1; AC_SUBST([HAVE_TANF])
142 HAVE_TANL=1; AC_SUBST([HAVE_TANL])
143 HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
144 HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
145 HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
146 HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF])
147 HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL])
148 HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
149 HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
150 HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF])
151 HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL])
152 HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
153 HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
154 HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
155 HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
156 HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND])
157 HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF])
158 HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL])
159 HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
160 HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
161 HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
162 HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
163 HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
164 HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL])
165 REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL])
166 REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
167 REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
168 REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR])
169 REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
170 REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
171 REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF])
172 REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
173 REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
174 REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
175 REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
176 REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
177 REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
178 REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
179 REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
180 REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
181 REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
182 REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
183 REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
184 REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
185 REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC])
186 REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF])
187 REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])