2 dnl Copyright (C) 2007-2010 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
40 AC_DEFUN([gl_MATH_MODULE_INDICATOR],
42 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
43 AC_REQUIRE([gl_MATH_H_DEFAULTS])
44 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
47 AC_DEFUN([gl_MATH_H_DEFAULTS],
49 GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF])
50 GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL])
51 GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF])
52 GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL])
53 GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
54 GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
55 GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE])
56 GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF])
57 GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN])
58 GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF])
59 GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND])
60 GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL])
61 GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL])
62 GNULIB_MATHL=0; AC_SUBST([GNULIB_MATHL])
63 GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND])
64 GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF])
65 GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL])
66 GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT])
67 GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC])
68 GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
69 GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
70 dnl Assume proper GNU behavior unless another module says otherwise.
71 HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
72 HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
73 HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
74 HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
75 HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
76 HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
77 HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
78 HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
79 HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
80 HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
81 HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
82 HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
83 HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
84 HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
85 HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
86 HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
87 REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
88 REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
89 REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
90 REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
91 REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
92 REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
93 REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
94 REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
95 REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
96 REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
97 REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
98 REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
99 REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
100 REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
101 REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
102 REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
103 REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
104 REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])