Mercurial > gnulib
view m4/locale_h.m4 @ 40177:dcd889592b62
dtoastr,ftoastr,ldtoastr: port to c-strtod changes
Decouple these modules from c-strtod. Nowadays it’s reasonable to
assume the C99 signatures for strtod and strtold. Programs that
require stricter adherence to C99 should also use the strtod and
strtold modules as needed, and we no longer need the
HAVE_C99_STRTOLD macro.
* NEWS: Mention this.
* lib/ftoastr.c (STRTOF) [LENGTH == 3]: Assume strtold.
* m4/c-strtod.m4 (gl_C_STRTOLD): Do not define HAVE_C99_STRTOLD.
* modules/dtoastr, modules/ftoastr, modules/ldtoastr:
(Files): Remove m4/c-strtod.m4.
(configure.ac): Do not require gl_C99_STRTOLD, which no longer
exists.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 02 Feb 2019 13:01:55 -0800 |
parents | b06060465f09 |
children |
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# locale_h.m4 serial 21 dnl Copyright (C) 2007, 2009-2019 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_DEFUN([gl_LOCALE_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) dnl Persuade glibc <locale.h> to define locale_t and the int_p_*, int_n_* dnl members of 'struct lconv'. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl If <stddef.h> is replaced, then <locale.h> must also be replaced. AC_REQUIRE([gl_STDDEF_H]) dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv' dnl only if _LCONV_C99 is defined. AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in solaris*) AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.]) ;; esac AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001], [gl_cv_header_locale_h_posix2001], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <locale.h> int x = LC_MESSAGES; int y = sizeof (((struct lconv *) 0)->decimal_point);]], [[]])], [gl_cv_header_locale_h_posix2001=yes], [gl_cv_header_locale_h_posix2001=no])]) dnl Check for <xlocale.h>. AC_CHECK_HEADERS_ONCE([xlocale.h]) if test $ac_cv_header_xlocale_h = yes; then HAVE_XLOCALE_H=1 dnl Check whether use of locale_t requires inclusion of <xlocale.h>, dnl e.g. on Mac OS X 10.5. If <locale.h> does not define locale_t by dnl itself, we assume that <xlocale.h> will do so. AC_CACHE_CHECK([whether locale.h defines locale_t], [gl_cv_header_locale_has_locale_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <locale.h> locale_t x;]], [[]])], [gl_cv_header_locale_has_locale_t=yes], [gl_cv_header_locale_has_locale_t=no]) ]) if test $gl_cv_header_locale_has_locale_t = yes; then gl_cv_header_locale_h_needs_xlocale_h=no else gl_cv_header_locale_h_needs_xlocale_h=yes fi else HAVE_XLOCALE_H=0 gl_cv_header_locale_h_needs_xlocale_h=no fi AC_SUBST([HAVE_XLOCALE_H]) dnl Check whether 'struct lconv' is complete. dnl Bionic libc's 'struct lconv' is just a dummy. dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members. AC_CACHE_CHECK([whether struct lconv is properly defined], [gl_cv_sys_struct_lconv_ok], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <locale.h> struct lconv l; int x = sizeof (l.decimal_point); int y = sizeof (l.int_p_cs_precedes);]], [[]])], [gl_cv_sys_struct_lconv_ok=yes], [gl_cv_sys_struct_lconv_ok=no]) ]) if test $gl_cv_sys_struct_lconv_ok = no; then REPLACE_STRUCT_LCONV=1 fi dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK. gl_NEXT_HEADERS([locale.h]) 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 <locale.h> /* Some systems provide declarations in a non-standard header. */ #if HAVE_XLOCALE_H # include <xlocale.h> #endif ]], [setlocale newlocale duplocale freelocale]) ]) AC_DEFUN([gl_LOCALE_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) 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_LOCALE_H_DEFAULTS], [ GNULIB_LOCALECONV=0; AC_SUBST([GNULIB_LOCALECONV]) GNULIB_SETLOCALE=0; AC_SUBST([GNULIB_SETLOCALE]) GNULIB_DUPLOCALE=0; AC_SUBST([GNULIB_DUPLOCALE]) GNULIB_LOCALENAME=0; AC_SUBST([GNULIB_LOCALENAME]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_NEWLOCALE=1; AC_SUBST([HAVE_NEWLOCALE]) HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE]) HAVE_FREELOCALE=1; AC_SUBST([HAVE_FREELOCALE]) REPLACE_LOCALECONV=0; AC_SUBST([REPLACE_LOCALECONV]) REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE]) REPLACE_NEWLOCALE=0; AC_SUBST([REPLACE_NEWLOCALE]) REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE]) REPLACE_FREELOCALE=0; AC_SUBST([REPLACE_FREELOCALE]) REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV]) ])