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jlechner |
dnl
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dnl This file contains macros for testing linkage.
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dnl
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dnl
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dnl Check to see if the (math function) argument passed is
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dnl declared when using the c++ compiler
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dnl ASSUMES argument is a math function with ONE parameter
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dnl
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dnl GLIBCXX_CHECK_MATH_DECL_1
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AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_1], [
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AC_MSG_CHECKING([for $1 declaration])
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if test x${glibcxx_cv_func_$1_use+set} != xset; then
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AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <math.h>
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#ifdef HAVE_IEEEFP_H
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#include <ieeefp.h>
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#endif
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],
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[ $1(0);],
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[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
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AC_LANG_RESTORE
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])
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fi
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AC_MSG_RESULT($glibcxx_cv_func_$1_use)
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])
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dnl
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dnl Define autoheader template for using the underscore functions
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dnl For each parameter, create a macro where if func doesn't exist,
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dnl but _func does, then it will "#define func _func".
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dnl
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dnl GLIBCXX_MAYBE_UNDERSCORED_FUNCS
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AC_DEFUN([GLIBCXX_MAYBE_UNDERSCORED_FUNCS],
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[AC_FOREACH([glibcxx_ufunc], [$1],
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[AH_VERBATIM(_[]glibcxx_ufunc,
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[#if defined (]AS_TR_CPP(HAVE__[]glibcxx_ufunc)[) && ! defined (]AS_TR_CPP(HAVE_[]glibcxx_ufunc)[)
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# define ]AS_TR_CPP(HAVE_[]glibcxx_ufunc)[ 1
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# define ]glibcxx_ufunc[ _]glibcxx_ufunc[
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#endif])])
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])
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dnl
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dnl Check to see if the (math function) argument passed is
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dnl 1) declared when using the c++ compiler
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dnl 2) has "C" linkage
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dnl 3) if not, see if 1) and 2) for argument prepended with '_'
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dnl
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dnl Define HAVE_CARGF etc if "cargf" is declared and links
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dnl
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dnl argument 1 is name of function to check
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dnl
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dnl ASSUMES argument is a math function with ONE parameter
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dnl
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dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1
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AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1], [
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GLIBCXX_CHECK_MATH_DECL_1($1)
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if test x$glibcxx_cv_func_$1_use = x"yes"; then
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AC_CHECK_FUNCS($1)
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else
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GLIBCXX_CHECK_MATH_DECL_1(_$1)
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if test x$glibcxx_cv_func__$1_use = x"yes"; then
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AC_CHECK_FUNCS(_$1)
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fi
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fi
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GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
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])
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dnl
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dnl Like GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
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dnl of functions at once. It's an all-or-nothing check -- either
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dnl HAVE_XYZ is defined for each of the functions, or for none of them.
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dnl Doing it this way saves significant configure time.
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AC_DEFUN([GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1], [
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define([funclist],patsubst($3,\(\w+\)\(\W*\),\1 ))dnl
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AC_MSG_CHECKING([for $1 functions])
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AC_CACHE_VAL(glibcxx_cv_func_$2_use, [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <math.h>],
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patsubst(funclist,[\w+],[\& (0);]),
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[glibcxx_cv_func_$2_use=yes],
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[glibcxx_cv_func_$2_use=no])
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AC_LANG_RESTORE])
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AC_MSG_RESULT($glibcxx_cv_func_$2_use)
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if test x$glibcxx_cv_func_$2_use = x"yes"; then
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AC_CHECK_FUNCS(funclist)
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else
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AC_MSG_CHECKING([for _$1 functions])
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AC_CACHE_VAL(glibcxx_cv_func__$2_use, [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <math.h>],
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patsubst(funclist,[\w+],[_\& (0);]),
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[glibcxx_cv_func__$2_use=yes],
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[glibcxx_cv_func__$2_use=no])
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AC_LANG_RESTORE])
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AC_MSG_RESULT($glibcxx_cv_func__$2_use)
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if test x$glibcxx_cv_func__$2_use = x"yes"; then
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AC_CHECK_FUNCS(patsubst(funclist,[\w+],[_\&]))
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fi
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fi
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GLIBCXX_MAYBE_UNDERSCORED_FUNCS(funclist)
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undefine([funclist])
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])
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dnl
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dnl Check to see if the (math function) argument passed is
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dnl declared when using the c++ compiler
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dnl ASSUMES argument is a math function with TWO parameters
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| 116 |
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dnl
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| 117 |
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dnl GLIBCXX_CHECK_MATH_DECL_2
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| 118 |
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AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_2], [
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AC_MSG_CHECKING([for $1 declaration])
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| 120 |
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if test x${glibcxx_cv_func_$1_use+set} != xset; then
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AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
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| 122 |
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AC_LANG_SAVE
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| 123 |
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <math.h>],
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| 125 |
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[ $1(0, 0);],
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| 126 |
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[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
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| 127 |
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AC_LANG_RESTORE
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| 128 |
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])
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| 129 |
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fi
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| 130 |
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AC_MSG_RESULT($glibcxx_cv_func_$1_use)
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])
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| 132 |
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dnl
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dnl Check to see if the (math function) argument passed is
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dnl 1) declared when using the c++ compiler
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dnl 2) has "C" linkage
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| 137 |
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dnl
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| 138 |
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dnl Define HAVE_CARGF etc if "cargf" is declared and links
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| 139 |
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dnl
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| 140 |
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dnl argument 1 is name of function to check
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dnl
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| 142 |
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dnl ASSUMES argument is a math function with TWO parameters
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| 143 |
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dnl
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| 144 |
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dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2
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| 145 |
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AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2], [
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| 146 |
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GLIBCXX_CHECK_MATH_DECL_2($1)
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| 147 |
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if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
| 148 |
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AC_CHECK_FUNCS($1)
|
| 149 |
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else
|
| 150 |
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GLIBCXX_CHECK_MATH_DECL_2(_$1)
|
| 151 |
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if test x$glibcxx_cv_func__$1_use = x"yes"; then
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| 152 |
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AC_CHECK_FUNCS(_$1)
|
| 153 |
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fi
|
| 154 |
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fi
|
| 155 |
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GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
|
| 156 |
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])
|
| 157 |
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| 158 |
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| 159 |
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dnl
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| 160 |
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dnl Check to see if the (math function) argument passed is
|
| 161 |
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dnl declared when using the c++ compiler
|
| 162 |
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dnl ASSUMES argument is a math function with THREE parameters
|
| 163 |
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dnl
|
| 164 |
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dnl GLIBCXX_CHECK_MATH_DECL_3
|
| 165 |
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AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_3], [
|
| 166 |
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AC_MSG_CHECKING([for $1 declaration])
|
| 167 |
|
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if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
| 168 |
|
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AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
| 169 |
|
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AC_LANG_SAVE
|
| 170 |
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AC_LANG_CPLUSPLUS
|
| 171 |
|
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AC_TRY_COMPILE([#include <math.h>],
|
| 172 |
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[ $1(0, 0, 0);],
|
| 173 |
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[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
| 174 |
|
|
AC_LANG_RESTORE
|
| 175 |
|
|
])
|
| 176 |
|
|
fi
|
| 177 |
|
|
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
| 178 |
|
|
])
|
| 179 |
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|
| 180 |
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dnl
|
| 181 |
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dnl Check to see if the (math function) argument passed is
|
| 182 |
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dnl 1) declared when using the c++ compiler
|
| 183 |
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|
dnl 2) has "C" linkage
|
| 184 |
|
|
dnl
|
| 185 |
|
|
dnl Define HAVE_CARGF etc if "cargf" is declared and links
|
| 186 |
|
|
dnl
|
| 187 |
|
|
dnl argument 1 is name of function to check
|
| 188 |
|
|
dnl
|
| 189 |
|
|
dnl ASSUMES argument is a math function with THREE parameters
|
| 190 |
|
|
dnl
|
| 191 |
|
|
dnl GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3
|
| 192 |
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3], [
|
| 193 |
|
|
GLIBCXX_CHECK_MATH_DECL_3($1)
|
| 194 |
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
| 195 |
|
|
AC_CHECK_FUNCS($1)
|
| 196 |
|
|
else
|
| 197 |
|
|
GLIBCXX_CHECK_MATH_DECL_3(_$1)
|
| 198 |
|
|
if test x$glibcxx_cv_func__$1_use = x"yes"; then
|
| 199 |
|
|
AC_CHECK_FUNCS(_$1)
|
| 200 |
|
|
fi
|
| 201 |
|
|
fi
|
| 202 |
|
|
GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
|
| 203 |
|
|
])
|
| 204 |
|
|
|
| 205 |
|
|
|
| 206 |
|
|
dnl
|
| 207 |
|
|
dnl Check to see if the (stdlib function) argument passed is
|
| 208 |
|
|
dnl 1) declared when using the c++ compiler
|
| 209 |
|
|
dnl 2) has "C" linkage
|
| 210 |
|
|
dnl
|
| 211 |
|
|
dnl argument 1 is name of function to check
|
| 212 |
|
|
dnl
|
| 213 |
|
|
dnl ASSUMES argument is a stdlib function without parameters
|
| 214 |
|
|
dnl
|
| 215 |
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0
|
| 216 |
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0], [
|
| 217 |
|
|
AC_MSG_CHECKING([for $1 declaration])
|
| 218 |
|
|
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
| 219 |
|
|
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
| 220 |
|
|
AC_LANG_SAVE
|
| 221 |
|
|
AC_LANG_CPLUSPLUS
|
| 222 |
|
|
AC_TRY_COMPILE([#include <stdlib.h>],
|
| 223 |
|
|
[ $1();],
|
| 224 |
|
|
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
| 225 |
|
|
AC_LANG_RESTORE
|
| 226 |
|
|
])
|
| 227 |
|
|
fi
|
| 228 |
|
|
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
| 229 |
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
| 230 |
|
|
AC_CHECK_FUNCS($1)
|
| 231 |
|
|
fi
|
| 232 |
|
|
])
|
| 233 |
|
|
|
| 234 |
|
|
|
| 235 |
|
|
dnl
|
| 236 |
|
|
dnl Check to see if the (stdlib function) argument passed is
|
| 237 |
|
|
dnl 1) declared when using the c++ compiler
|
| 238 |
|
|
dnl 2) has "C" linkage
|
| 239 |
|
|
dnl
|
| 240 |
|
|
dnl argument 1 is name of function to check
|
| 241 |
|
|
dnl
|
| 242 |
|
|
dnl ASSUMES argument is a stdlib function with TWO parameters
|
| 243 |
|
|
dnl
|
| 244 |
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
|
| 245 |
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2], [
|
| 246 |
|
|
AC_MSG_CHECKING([for $1 declaration])
|
| 247 |
|
|
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
| 248 |
|
|
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
| 249 |
|
|
AC_LANG_SAVE
|
| 250 |
|
|
AC_LANG_CPLUSPLUS
|
| 251 |
|
|
AC_TRY_COMPILE([#include <stdlib.h>],
|
| 252 |
|
|
[ $1(0, 0);],
|
| 253 |
|
|
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
| 254 |
|
|
AC_LANG_RESTORE
|
| 255 |
|
|
])
|
| 256 |
|
|
fi
|
| 257 |
|
|
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
| 258 |
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
| 259 |
|
|
AC_CHECK_FUNCS($1)
|
| 260 |
|
|
fi
|
| 261 |
|
|
GLIBCXX_MAYBE_UNDERSCORED_FUNCS($1)
|
| 262 |
|
|
])
|
| 263 |
|
|
|
| 264 |
|
|
|
| 265 |
|
|
dnl
|
| 266 |
|
|
dnl Check to see if the (stdlib function) argument passed is
|
| 267 |
|
|
dnl 1) declared when using the c++ compiler
|
| 268 |
|
|
dnl 2) has "C" linkage
|
| 269 |
|
|
dnl
|
| 270 |
|
|
dnl argument 1 is name of function to check
|
| 271 |
|
|
dnl
|
| 272 |
|
|
dnl ASSUMES argument is a stdlib function with THREE parameters
|
| 273 |
|
|
dnl
|
| 274 |
|
|
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3
|
| 275 |
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3], [
|
| 276 |
|
|
AC_MSG_CHECKING([for $1 declaration])
|
| 277 |
|
|
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
| 278 |
|
|
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
| 279 |
|
|
AC_LANG_SAVE
|
| 280 |
|
|
AC_LANG_CPLUSPLUS
|
| 281 |
|
|
AC_TRY_COMPILE([#include <stdlib.h>],
|
| 282 |
|
|
[ $1(0, 0, 0);],
|
| 283 |
|
|
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
| 284 |
|
|
AC_LANG_RESTORE
|
| 285 |
|
|
])
|
| 286 |
|
|
fi
|
| 287 |
|
|
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
| 288 |
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
| 289 |
|
|
AC_CHECK_FUNCS($1)
|
| 290 |
|
|
fi
|
| 291 |
|
|
])
|
| 292 |
|
|
|
| 293 |
|
|
dnl
|
| 294 |
|
|
dnl Because the builtins are picky picky picky about the arguments they take,
|
| 295 |
|
|
dnl do an explict linkage tests here.
|
| 296 |
|
|
dnl Check to see if the (math function) argument passed is
|
| 297 |
|
|
dnl 1) declared when using the c++ compiler
|
| 298 |
|
|
dnl 2) has "C" linkage
|
| 299 |
|
|
dnl
|
| 300 |
|
|
dnl Define HAVE_CARGF etc if "cargf" is declared and links
|
| 301 |
|
|
dnl
|
| 302 |
|
|
dnl argument 1 is name of function to check
|
| 303 |
|
|
dnl
|
| 304 |
|
|
dnl ASSUMES argument is a math function with ONE parameter
|
| 305 |
|
|
dnl
|
| 306 |
|
|
dnl GLIBCXX_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
|
| 307 |
|
|
AC_DEFUN([GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1], [
|
| 308 |
|
|
AC_MSG_CHECKING([for $1 declaration])
|
| 309 |
|
|
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
| 310 |
|
|
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
| 311 |
|
|
AC_LANG_SAVE
|
| 312 |
|
|
AC_LANG_CPLUSPLUS
|
| 313 |
|
|
AC_TRY_COMPILE([#include <math.h>],
|
| 314 |
|
|
[ $1(0);],
|
| 315 |
|
|
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
| 316 |
|
|
AC_LANG_RESTORE
|
| 317 |
|
|
])
|
| 318 |
|
|
fi
|
| 319 |
|
|
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
| 320 |
|
|
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
| 321 |
|
|
AC_MSG_CHECKING([for $1 linkage])
|
| 322 |
|
|
if test x${glibcxx_cv_func_$1_link+set} != xset; then
|
| 323 |
|
|
AC_CACHE_VAL(glibcxx_cv_func_$1_link, [
|
| 324 |
|
|
AC_TRY_LINK([#include <math.h>],
|
| 325 |
|
|
[ $1(0);],
|
| 326 |
|
|
[glibcxx_cv_func_$1_link=yes], [glibcxx_cv_func_$1_link=no])
|
| 327 |
|
|
])
|
| 328 |
|
|
fi
|
| 329 |
|
|
AC_MSG_RESULT($glibcxx_cv_func_$1_link)
|
| 330 |
|
|
define([NAME], [translit([$1],[abcdefghijklmnopqrstuvwxyz],
|
| 331 |
|
|
[ABCDEFGHIJKLMNOPQRSTUVWXYZ])])
|
| 332 |
|
|
if test x$glibcxx_cv_func_$1_link = x"yes"; then
|
| 333 |
|
|
AC_DEFINE([HAVE_]NAME, 1, [Define if the compiler/host combination has $1.])
|
| 334 |
|
|
fi
|
| 335 |
|
|
undefine([NAME])
|
| 336 |
|
|
fi
|
| 337 |
|
|
])
|
| 338 |
|
|
|
| 339 |
|
|
|
| 340 |
|
|
dnl
|
| 341 |
|
|
dnl Check to see what builtin math functions are supported
|
| 342 |
|
|
dnl
|
| 343 |
|
|
dnl check for __builtin_abs
|
| 344 |
|
|
dnl check for __builtin_fabsf
|
| 345 |
|
|
dnl check for __builtin_fabs
|
| 346 |
|
|
dnl check for __builtin_fabl
|
| 347 |
|
|
dnl check for __builtin_labs
|
| 348 |
|
|
dnl check for __builtin_sqrtf
|
| 349 |
|
|
dnl check for __builtin_sqrtl
|
| 350 |
|
|
dnl check for __builtin_sqrt
|
| 351 |
|
|
dnl check for __builtin_sinf
|
| 352 |
|
|
dnl check for __builtin_sin
|
| 353 |
|
|
dnl check for __builtin_sinl
|
| 354 |
|
|
dnl check for __builtin_cosf
|
| 355 |
|
|
dnl check for __builtin_cos
|
| 356 |
|
|
dnl check for __builtin_cosl
|
| 357 |
|
|
dnl
|
| 358 |
|
|
dnl GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
|
| 359 |
|
|
AC_DEFUN([GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT], [
|
| 360 |
|
|
dnl Test for builtin math functions.
|
| 361 |
|
|
dnl These are made in gcc/c-common.c
|
| 362 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
|
| 363 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
|
| 364 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
|
| 365 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
|
| 366 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
|
| 367 |
|
|
|
| 368 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
|
| 369 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
|
| 370 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
|
| 371 |
|
|
|
| 372 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
|
| 373 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
|
| 374 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
|
| 375 |
|
|
|
| 376 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
|
| 377 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
|
| 378 |
|
|
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
|
| 379 |
|
|
])
|
| 380 |
|
|
|
| 381 |
|
|
dnl
|
| 382 |
|
|
dnl Check to see what the underlying c library is like
|
| 383 |
|
|
dnl These checks need to do two things:
|
| 384 |
|
|
dnl 1) make sure the name is declared when using the c++ compiler
|
| 385 |
|
|
dnl 2) make sure the name has "C" linkage
|
| 386 |
|
|
dnl This might seem like overkill but experience has shown that it's not...
|
| 387 |
|
|
dnl
|
| 388 |
|
|
dnl Define HAVE_STRTOLD if "strtold" is declared and links
|
| 389 |
|
|
dnl Define HAVE_STRTOF if "strtof" is declared and links
|
| 390 |
|
|
dnl
|
| 391 |
|
|
dnl GLIBCXX_CHECK_STDLIB_SUPPORT
|
| 392 |
|
|
AC_DEFUN([GLIBCXX_CHECK_STDLIB_SUPPORT], [
|
| 393 |
|
|
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
| 394 |
|
|
ac_save_CXXFLAGS="$CXXFLAGS"
|
| 395 |
|
|
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
|
| 396 |
|
|
|
| 397 |
|
|
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
|
| 398 |
|
|
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
|
| 399 |
|
|
|
| 400 |
|
|
CXXFLAGS="$ac_save_CXXFLAGS"
|
| 401 |
|
|
])
|
| 402 |
|
|
|
| 403 |
|
|
dnl
|
| 404 |
|
|
dnl Check to see what the underlying c library or math library is like.
|
| 405 |
|
|
dnl These checks need to do two things:
|
| 406 |
|
|
dnl 1) make sure the name is declared when using the c++ compiler
|
| 407 |
|
|
dnl 2) make sure the name has "C" linkage
|
| 408 |
|
|
dnl This might seem like overkill but experience has shown that it's not...
|
| 409 |
|
|
dnl
|
| 410 |
|
|
dnl Define HAVE_CARGF etc if "cargf" is found.
|
| 411 |
|
|
dnl
|
| 412 |
|
|
dnl GLIBCXX_CHECK_MATH_SUPPORT
|
| 413 |
|
|
AC_DEFUN([GLIBCXX_CHECK_MATH_SUPPORT], [
|
| 414 |
|
|
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
| 415 |
|
|
ac_save_CXXFLAGS="$CXXFLAGS"
|
| 416 |
|
|
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
|
| 417 |
|
|
|
| 418 |
|
|
dnl Check libm
|
| 419 |
|
|
AC_CHECK_LIB(m, sin, libm="-lm")
|
| 420 |
|
|
ac_save_LIBS="$LIBS"
|
| 421 |
|
|
LIBS="$LIBS $libm"
|
| 422 |
|
|
|
| 423 |
|
|
dnl Check to see if certain C math functions exist.
|
| 424 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
|
| 425 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
|
| 426 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
|
| 427 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
|
| 428 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
|
| 429 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
|
| 430 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
|
| 431 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
|
| 432 |
|
|
|
| 433 |
|
|
dnl Check to see if basic C math functions have float versions.
|
| 434 |
|
|
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
|
| 435 |
|
|
float_trig,
|
| 436 |
|
|
acosf asinf atanf \
|
| 437 |
|
|
cosf sinf tanf \
|
| 438 |
|
|
coshf sinhf tanhf)
|
| 439 |
|
|
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
|
| 440 |
|
|
float_round,
|
| 441 |
|
|
ceilf floorf)
|
| 442 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
|
| 443 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
|
| 444 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
|
| 445 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
|
| 446 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
|
| 447 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
|
| 448 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
|
| 449 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
|
| 450 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
|
| 451 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
|
| 452 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
|
| 453 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
|
| 454 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modf)
|
| 455 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
|
| 456 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
|
| 457 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
|
| 458 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
|
| 459 |
|
|
|
| 460 |
|
|
dnl Check to see if basic C math functions have long double versions.
|
| 461 |
|
|
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
|
| 462 |
|
|
long_double_trig,
|
| 463 |
|
|
acosl asinl atanl \
|
| 464 |
|
|
cosl sinl tanl \
|
| 465 |
|
|
coshl sinhl tanhl)
|
| 466 |
|
|
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
|
| 467 |
|
|
long_double_round,
|
| 468 |
|
|
ceill floorl)
|
| 469 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
|
| 470 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
|
| 471 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
|
| 472 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
|
| 473 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
|
| 474 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
|
| 475 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
|
| 476 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
|
| 477 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
|
| 478 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
|
| 479 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
|
| 480 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
|
| 481 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
|
| 482 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
|
| 483 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
|
| 484 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
|
| 485 |
|
|
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
|
| 486 |
|
|
|
| 487 |
|
|
LIBS="$ac_save_LIBS"
|
| 488 |
|
|
CXXFLAGS="$ac_save_CXXFLAGS"
|
| 489 |
|
|
])
|
| 490 |
|
|
|
| 491 |
|
|
|
| 492 |
|
|
dnl
|
| 493 |
|
|
dnl Check to see if there is native support for complex
|
| 494 |
|
|
dnl
|
| 495 |
|
|
dnl Don't compile bits in math/* if native support exits.
|
| 496 |
|
|
dnl
|
| 497 |
|
|
dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
|
| 498 |
|
|
dnl
|
| 499 |
|
|
dnl GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
|
| 500 |
|
|
AC_DEFUN([GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT], [
|
| 501 |
|
|
dnl Check for complex versions of math functions of platform. This will
|
| 502 |
|
|
dnl always pass if libm is available, and fail if it isn't. If it is
|
| 503 |
|
|
dnl available, we assume we'll need it later, so add it to LIBS.
|
| 504 |
|
|
AC_CHECK_LIB(m, main)
|
| 505 |
|
|
AC_REPLACE_MATHFUNCS(copysignf)
|
| 506 |
|
|
|
| 507 |
|
|
dnl For __signbit to signbit conversions.
|
| 508 |
|
|
dnl Not sure why this is done, as these will be macros mostly.
|
| 509 |
|
|
dnl Should probably coordinate this with std_cmath.h.
|
| 510 |
|
|
AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
|
| 511 |
|
|
|
| 512 |
|
|
AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
|
| 513 |
|
|
|
| 514 |
|
|
dnl Compile the long double complex functions only if the function
|
| 515 |
|
|
dnl provides the non-complex long double functions that are needed.
|
| 516 |
|
|
dnl Currently this includes copysignl, which should be
|
| 517 |
|
|
dnl cached from the GLIBCXX_CHECK_MATH_SUPPORT macro, above.
|
| 518 |
|
|
if test x$ac_cv_func_copysignl = x"yes"; then
|
| 519 |
|
|
AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
|
| 520 |
|
|
fi
|
| 521 |
|
|
|
| 522 |
|
|
# Used in libmath/Makefile.am.
|
| 523 |
|
|
if test -n "$LIBMATHOBJS"; then
|
| 524 |
|
|
need_libmath=yes
|
| 525 |
|
|
fi
|
| 526 |
|
|
AC_SUBST(LIBMATHOBJS)
|
| 527 |
|
|
])
|
| 528 |
|
|
|
| 529 |
|
|
|
| 530 |
|
|
# Check for functions in math library.
|
| 531 |
|
|
# Ulrich Drepper <drepper@cygnus.com>, 1998.
|
| 532 |
|
|
#
|
| 533 |
|
|
# This file can be copied and used freely without restrictions. It can
|
| 534 |
|
|
# be used in projects which are not available under the GNU Public License
|
| 535 |
|
|
# but which still want to provide support for the GNU gettext functionality.
|
| 536 |
|
|
# Please note that the actual code is *not* freely available.
|
| 537 |
|
|
#
|
| 538 |
|
|
# serial 1
|
| 539 |
|
|
#
|
| 540 |
|
|
dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
|
| 541 |
|
|
AC_DEFUN([AC_REPLACE_MATHFUNCS],
|
| 542 |
|
|
[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
|
