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# uchar.m4 serial 13
dnl Copyright (C) 2019-2020 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.
dnl From Bruno Haible.
dnl Prepare the overridden <uchar.h>.
AC_DEFUN_ONCE([gl_UCHAR_H],
[
AC_REQUIRE([gl_UCHAR_H_DEFAULTS])
gl_CHECK_NEXT_HEADERS([uchar.h])
if test $ac_cv_header_uchar_h = yes; then
HAVE_UCHAR_H=1
else
HAVE_UCHAR_H=0
fi
AC_SUBST([HAVE_UCHAR_H])
dnl Test whether a 'char32_t' can hold more characters than a 'wchar_t'.
gl_STDINT_BITSIZEOF([wchar_t], [gl_STDINT_INCLUDES])
if test $BITSIZEOF_WCHAR_T -lt 32; then
SMALL_WCHAR_T=1
else
SMALL_WCHAR_T=0
fi
dnl SMALL_WCHAR_T is expected to be 1 on 32-bit AIX, Cygwin, native Windows.
AC_SUBST([SMALL_WCHAR_T])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use, and which is not
dnl guaranteed by C11.
gl_WARN_ON_USE_PREPARE([[#include <uchar.h>
]], [c32rtomb mbrtoc32])
])
AC_DEFUN([gl_UCHAR_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_UCHAR_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_UCHAR_H_DEFAULTS],
[
GNULIB_BTOC32=0; AC_SUBST([GNULIB_BTOC32])
GNULIB_C32ISALNUM=0; AC_SUBST([GNULIB_C32ISALNUM])
GNULIB_C32ISALPHA=0; AC_SUBST([GNULIB_C32ISALPHA])
GNULIB_C32ISBLANK=0; AC_SUBST([GNULIB_C32ISBLANK])
GNULIB_C32ISCNTRL=0; AC_SUBST([GNULIB_C32ISCNTRL])
GNULIB_C32ISDIGIT=0; AC_SUBST([GNULIB_C32ISDIGIT])
GNULIB_C32ISGRAPH=0; AC_SUBST([GNULIB_C32ISGRAPH])
GNULIB_C32ISLOWER=0; AC_SUBST([GNULIB_C32ISLOWER])
GNULIB_C32ISPRINT=0; AC_SUBST([GNULIB_C32ISPRINT])
GNULIB_C32ISPUNCT=0; AC_SUBST([GNULIB_C32ISPUNCT])
GNULIB_C32ISSPACE=0; AC_SUBST([GNULIB_C32ISSPACE])
GNULIB_C32ISUPPER=0; AC_SUBST([GNULIB_C32ISUPPER])
GNULIB_C32ISXDIGIT=0; AC_SUBST([GNULIB_C32ISXDIGIT])
GNULIB_C32RTOMB=0; AC_SUBST([GNULIB_C32RTOMB])
GNULIB_C32SNRTOMBS=0; AC_SUBST([GNULIB_C32SNRTOMBS])
GNULIB_C32SRTOMBS=0; AC_SUBST([GNULIB_C32SRTOMBS])
GNULIB_C32STOMBS=0; AC_SUBST([GNULIB_C32STOMBS])
GNULIB_C32TOB=0; AC_SUBST([GNULIB_C32TOB])
GNULIB_MBRTOC32=0; AC_SUBST([GNULIB_MBRTOC32])
GNULIB_MBSNRTOC32S=0; AC_SUBST([GNULIB_MBSNRTOC32S])
GNULIB_MBSRTOC32S=0; AC_SUBST([GNULIB_MBSRTOC32S])
GNULIB_MBSTOC32S=0; AC_SUBST([GNULIB_MBSTOC32S])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_C32RTOMB=1; AC_SUBST([HAVE_C32RTOMB])
HAVE_MBRTOC32=1; AC_SUBST([HAVE_MBRTOC32])
REPLACE_C32RTOMB=0; AC_SUBST([REPLACE_C32RTOMB])
REPLACE_MBRTOC32=0; AC_SUBST([REPLACE_MBRTOC32])
])
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