-# math_h.m4 serial 10
-dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
+# math_h.m4 serial 21
+dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
gl_CHECK_NEXT_HEADERS([math.h])
+ AC_REQUIRE([AC_C_INLINE])
+
AC_CACHE_CHECK([whether NAN macro works], [gl_cv_header_math_nan_works],
- [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([@%:@include <math.h>],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]],
[[/* Solaris 10 has a broken definition of NAN. Other platforms
fail to provide NAN, or provide it only in C99 mode; this
test only needs to fail when NAN is provided but wrong. */
float f = 1.0f;
#ifdef NAN
- f = NAN;
+ f = NAN;
#endif
- return f == 0;]])],
+ return f == 0;]])],
[gl_cv_header_math_nan_works=yes],
[gl_cv_header_math_nan_works=no])])
- if test gl_cv_header_math_nan_works = no; then
+ if test $gl_cv_header_math_nan_works = no; then
REPLACE_NAN=1
fi
AC_CACHE_CHECK([whether HUGE_VAL works], [gl_cv_header_math_huge_val_works],
- [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([@%:@include <math.h>],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <math.h>]],
[[/* Solaris 10 has a broken definition of HUGE_VAL. */
- double d = HUGE_VAL;
- return d == 0;]])],
+ double d = HUGE_VAL;
+ return d == 0;]])],
[gl_cv_header_math_huge_val_works=yes],
[gl_cv_header_math_huge_val_works=no])])
- if test gl_cv_header_math_huge_val_works = no; then
+ if test $gl_cv_header_math_huge_val_works = no; then
REPLACE_HUGE_VAL=1
fi
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <math.h>
+ ]], [acosl asinl atanl ceilf ceill cosl expl floorf floorl frexpl
+ ldexpl logb logl round roundf roundl sinl sqrtl tanl trunc truncf truncl])
])
AC_DEFUN([gl_MATH_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_MATH_H_DEFAULTS])
- GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+ dnl Define it also as a C macro, for the benefit of the unit tests.
+ gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_MATH_H_DEFAULTS],
[
+ GNULIB_ACOSL=0; AC_SUBST([GNULIB_ACOSL])
+ GNULIB_ASINL=0; AC_SUBST([GNULIB_ASINL])
+ GNULIB_ATANL=0; AC_SUBST([GNULIB_ATANL])
GNULIB_CEILF=0; AC_SUBST([GNULIB_CEILF])
GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL])
+ GNULIB_COSL=0; AC_SUBST([GNULIB_COSL])
+ GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL])
GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF])
GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL])
GNULIB_FREXP=0; AC_SUBST([GNULIB_FREXP])
GNULIB_FREXPL=0; AC_SUBST([GNULIB_FREXPL])
GNULIB_ISFINITE=0; AC_SUBST([GNULIB_ISFINITE])
+ GNULIB_ISINF=0; AC_SUBST([GNULIB_ISINF])
+ GNULIB_ISNAN=0; AC_SUBST([GNULIB_ISNAN])
+ GNULIB_ISNANF=0; AC_SUBST([GNULIB_ISNANF])
+ GNULIB_ISNAND=0; AC_SUBST([GNULIB_ISNAND])
+ GNULIB_ISNANL=0; AC_SUBST([GNULIB_ISNANL])
GNULIB_LDEXPL=0; AC_SUBST([GNULIB_LDEXPL])
- GNULIB_MATHL=0; AC_SUBST([GNULIB_MATHL])
+ GNULIB_LOGB=0; AC_SUBST([GNULIB_LOGB])
+ GNULIB_LOGL=0; AC_SUBST([GNULIB_LOGL])
GNULIB_ROUND=0; AC_SUBST([GNULIB_ROUND])
GNULIB_ROUNDF=0; AC_SUBST([GNULIB_ROUNDF])
GNULIB_ROUNDL=0; AC_SUBST([GNULIB_ROUNDL])
GNULIB_SIGNBIT=0; AC_SUBST([GNULIB_SIGNBIT])
+ GNULIB_SINL=0; AC_SUBST([GNULIB_SINL])
+ GNULIB_SQRTL=0; AC_SUBST([GNULIB_SQRTL])
+ GNULIB_TANL=0; AC_SUBST([GNULIB_TANL])
GNULIB_TRUNC=0; AC_SUBST([GNULIB_TRUNC])
GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
+ HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
+ HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
+ HAVE_COSL=1; AC_SUBST([HAVE_COSL])
+ HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
+ HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
+ HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
+ HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
+ HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
+ HAVE_SINL=1; AC_SUBST([HAVE_SINL])
+ HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
+ HAVE_TANL=1; AC_SUBST([HAVE_TANL])
HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
+ HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF])
+ HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL])
HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
+ HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF])
+ HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL])
HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
+ HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
+ HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND])
+ HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF])
+ HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL])
HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
+ REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
+ REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
+ REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])
])
projects / gnulib.git / blobdiff