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 atanl ceilf ceill cosf cosl
43 expf expl fabsf floorf floorl fmodf frexpf frexpl
44 ldexpf ldexpl logb logf logl log10f modff powf
45 round roundf roundl sinf sinl 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_ATANL=0; AC_SUBST([GNULIB_ATANL])
65 GNULIB_CEIL=0; AC_SUBST([GNULIB_CEIL])
66 GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF])
67 GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL])
68 GNULIB_COSF=0; AC_SUBST([GNULIB_COSF])
69 GNULIB_COSL=0; AC_SUBST([GNULIB_COSL])
70 GNULIB_EXPF=0; AC_SUBST([GNULIB_EXPF])
71 GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL])
72 GNULIB_FABSF=0; AC_SUBST([GNULIB_FABSF])
73 GNULIB_FLOOR=0; AC_SUBST([GNULIB_FLOOR])
74 GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF])
75 GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL])
76 GNULIB_FMODF=0; AC_SUBST([GNULIB_FMODF])
77 GNULIB_FREXPF=0; AC_SUBST([GNULIB_FREXPF])
78 GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
79 GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
80 GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE])
81 GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF])
82 GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN])
83 GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF])
84 GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND])
85 GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL])
86 GNULIB_LDEXPF=0; AC_SUBST([GNULIB_LDEXPF])
87 GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL])
88 GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB])
89 GNULIB_LOGF=0; AC_SUBST([GNULIB_LOGF])
90 GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL])
91 GNULIB_LOG10F=0; AC_SUBST([GNULIB_LOG10F])
92 GNULIB_MODFF=0; AC_SUBST([GNULIB_MODFF])
93 GNULIB_POWF=0; AC_SUBST([GNULIB_POWF])
94 GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND])
95 GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF])
96 GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL])
97 GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT])
98 GNULIB_SINF=0; AC_SUBST([GNULIB_SINF])
99 GNULIB_SINL=0; AC_SUBST([GNULIB_SINL])
100 GNULIB_SQRTF=0; AC_SUBST([GNULIB_SQRTF])
101 GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL])
102 GNULIB_TANF=0; AC_SUBST([GNULIB_TANF])
103 GNULIB_TANL=0; AC_SUBST([GNULIB_TANL])
104 GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC])
105 GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
106 GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
107 dnl Assume proper GNU behavior unless another module says otherwise.
108 HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF])
109 HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
110 HAVE_ASINF=1; AC_SUBST([HAVE_ASINF])
111 HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
112 HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
113 HAVE_COSF=1; AC_SUBST([HAVE_COSF])
114 HAVE_COSL=1; AC_SUBST([HAVE_COSL])
115 HAVE_EXPF=1; AC_SUBST([HAVE_EXPF])
116 HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
117 HAVE_FABSF=1; AC_SUBST([HAVE_FABSF])
118 HAVE_FMODF=1; AC_SUBST([HAVE_FMODF])
119 HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF])
120 HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
121 HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
122 HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
123 HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF])
124 HAVE_LOGF=1; AC_SUBST([HAVE_LOGF])
125 HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
126 HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F])
127 HAVE_MODFF=1; AC_SUBST([HAVE_MODFF])
128 HAVE_POWF=1; AC_SUBST([HAVE_POWF])
129 HAVE_SINF=1; AC_SUBST([HAVE_SINF])
130 HAVE_SINL=1; AC_SUBST([HAVE_SINL])
131 HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF])
132 HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
133 HAVE_TANF=1; AC_SUBST([HAVE_TANF])
134 HAVE_TANL=1; AC_SUBST([HAVE_TANL])
135 HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
136 HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
137 HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
138 HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF])
139 HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL])
140 HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
141 HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
142 HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF])
143 HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL])
144 HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
145 HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
146 HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
147 HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
148 HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND])
149 HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF])
150 HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL])
151 HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
152 HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
153 HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
154 HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
155 HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
156 HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL])
157 REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL])
158 REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
159 REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
160 REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR])
161 REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
162 REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
163 REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF])
164 REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
165 REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
166 REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
167 REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
168 REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
169 REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
170 REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
171 REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
172 REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
173 REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
174 REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
175 REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
176 REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
177 REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC])
178 REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF])
179 REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])