91 lines
2.7 KiB
Text
91 lines
2.7 KiB
Text
# c-strtod.m4
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# serial 21
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dnl Copyright (C) 2004-2006, 2009-2025 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This file is offered as-is, without any warranty.
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# Written by Paul Eggert.
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dnl Prerequisites of lib/c-strtod.c.
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AC_DEFUN([gl_C_STRTOD],
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[
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AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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AC_REQUIRE([gt_FUNC_USELOCALE])
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gl_CHECK_FUNCS_ANDROID([nl_langinfo], [[#include <langinfo.h>]])
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AC_CHECK_HEADERS_ONCE([xlocale.h])
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dnl We can't use AC_CHECK_FUNC here, because strtod_l() is defined as a
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dnl static inline function when compiling for Android 7.1 or older.
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AC_CACHE_CHECK([for strtod_l], [gl_cv_func_strtod_l],
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <stdlib.h>
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#include <locale.h>
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#if HAVE_XLOCALE_H
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# include <xlocale.h>
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#endif
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locale_t loc;
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]],
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[[char *end;
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return strtod_l("0",&end,loc) < 0.0;
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]])
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],
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[gl_cv_func_strtod_l=yes],
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[gl_cv_func_strtod_l=no])
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])
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if test $gl_cv_func_strtod_l = yes; then
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HAVE_STRTOD_L=1
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else
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HAVE_STRTOD_L=0
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fi
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AC_DEFINE_UNQUOTED([HAVE_STRTOD_L], [$HAVE_STRTOD_L],
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[Define to 1 if the system has the 'strtod_l' function.])
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])
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dnl Prerequisites of lib/c-strtof.c.
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AC_DEFUN([gl_C_STRTOF],
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[
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AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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AC_REQUIRE([gt_FUNC_USELOCALE])
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gl_CHECK_FUNCS_ANDROID([nl_langinfo], [[#include <langinfo.h>]])
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AC_CHECK_HEADERS_ONCE([xlocale.h])
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dnl We can't use AC_CHECK_FUNC here, because strtof_l() is defined as a
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dnl static inline function when compiling for Android 7.1 or older.
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AC_CACHE_CHECK([for strtof_l], [gl_cv_func_strtof_l],
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <stdlib.h>
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#include <locale.h>
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#if HAVE_XLOCALE_H
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# include <xlocale.h>
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#endif
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locale_t loc;
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]],
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[[char *end;
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return strtof_l("0",&end,loc) < 0.0f;
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]])
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],
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[gl_cv_func_strtof_l=yes],
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[gl_cv_func_strtof_l=no])
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])
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if test $gl_cv_func_strtof_l = yes; then
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HAVE_STRTOF_L=1
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else
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HAVE_STRTOF_L=0
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fi
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AC_DEFINE_UNQUOTED([HAVE_STRTOF_L], [$HAVE_STRTOF_L],
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[Define to 1 if the system has the 'strtof_l' function.])
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])
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dnl Prerequisites of lib/c-strtold.c.
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AC_DEFUN([gl_C_STRTOLD],
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[
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AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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AC_REQUIRE([gt_FUNC_USELOCALE])
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gl_CHECK_FUNCS_ANDROID([nl_langinfo], [[#include <langinfo.h>]])
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gl_CHECK_FUNCS_ANDROID([strtold_l], [[#include <stdlib.h>]])
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])
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