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