mirror of https://gitee.com/openkylin/wget.git
213 lines
6.9 KiB
Plaintext
213 lines
6.9 KiB
Plaintext
# wctype_h.m4 serial 21
|
|
|
|
dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
|
|
|
|
dnl Copyright (C) 2006-2019 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.
|
|
|
|
dnl Written by Paul Eggert.
|
|
|
|
AC_DEFUN([gl_WCTYPE_H],
|
|
[
|
|
AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
|
|
AC_REQUIRE([AC_PROG_CC])
|
|
AC_REQUIRE([AC_CANONICAL_HOST])
|
|
AC_CHECK_FUNCS_ONCE([iswcntrl])
|
|
if test $ac_cv_func_iswcntrl = yes; then
|
|
HAVE_ISWCNTRL=1
|
|
else
|
|
HAVE_ISWCNTRL=0
|
|
fi
|
|
AC_SUBST([HAVE_ISWCNTRL])
|
|
|
|
AC_REQUIRE([gt_TYPE_WINT_T])
|
|
if test $gt_cv_c_wint_t = yes; then
|
|
HAVE_WINT_T=1
|
|
else
|
|
HAVE_WINT_T=0
|
|
fi
|
|
AC_SUBST([HAVE_WINT_T])
|
|
|
|
AC_REQUIRE([gl_TYPE_WINT_T_PREREQ])
|
|
|
|
gl_CHECK_NEXT_HEADERS([wctype.h])
|
|
if test $ac_cv_header_wctype_h = yes; then
|
|
if test $ac_cv_func_iswcntrl = yes; then
|
|
dnl Linux libc5 has an iswprint function that returns 0 for all arguments.
|
|
dnl The other functions are likely broken in the same way.
|
|
AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
|
|
[
|
|
AC_RUN_IFELSE(
|
|
[AC_LANG_SOURCE([[
|
|
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
|
|
included before <wchar.h>.
|
|
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
|
|
must be included before <wchar.h>. */
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <wchar.h>
|
|
#include <wctype.h>
|
|
int main () { return iswprint ('x') == 0; }
|
|
]])],
|
|
[gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
|
|
[dnl Guess no on Linux libc5, yes otherwise.
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
|
|
#if __GNU_LIBRARY__ == 1
|
|
Linux libc5 i18n is broken.
|
|
#endif]], [])],
|
|
[gl_cv_func_iswcntrl_works="guessing yes"],
|
|
[gl_cv_func_iswcntrl_works="guessing no"])
|
|
])
|
|
])
|
|
fi
|
|
HAVE_WCTYPE_H=1
|
|
else
|
|
HAVE_WCTYPE_H=0
|
|
fi
|
|
AC_SUBST([HAVE_WCTYPE_H])
|
|
|
|
case "$gl_cv_func_iswcntrl_works" in
|
|
*yes) REPLACE_ISWCNTRL=0 ;;
|
|
*) REPLACE_ISWCNTRL=1 ;;
|
|
esac
|
|
AC_SUBST([REPLACE_ISWCNTRL])
|
|
|
|
if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
|
|
dnl Redefine all of iswcntrl, ..., iswxdigit in <wctype.h>.
|
|
:
|
|
fi
|
|
|
|
if test $REPLACE_ISWCNTRL = 1; then
|
|
REPLACE_TOWLOWER=1
|
|
else
|
|
AC_CHECK_FUNCS([towlower])
|
|
if test $ac_cv_func_towlower = yes; then
|
|
REPLACE_TOWLOWER=0
|
|
else
|
|
AC_CHECK_DECLS([towlower],,,
|
|
[[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
|
|
included before <wchar.h>.
|
|
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
|
|
must be included before <wchar.h>. */
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <wchar.h>
|
|
#if HAVE_WCTYPE_H
|
|
# include <wctype.h>
|
|
#endif
|
|
]])
|
|
if test $ac_cv_have_decl_towlower = yes; then
|
|
dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and
|
|
dnl towupper() although it does not have the functions. Avoid a
|
|
dnl collision with gnulib's replacement.
|
|
REPLACE_TOWLOWER=1
|
|
else
|
|
REPLACE_TOWLOWER=0
|
|
fi
|
|
fi
|
|
fi
|
|
AC_SUBST([REPLACE_TOWLOWER])
|
|
|
|
if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then
|
|
dnl Redefine towlower, towupper in <wctype.h>.
|
|
:
|
|
fi
|
|
|
|
dnl We assume that the wctype() and iswctype() functions exist if and only
|
|
dnl if the type wctype_t is defined in <wchar.h> or in <wctype.h> if that
|
|
dnl exists.
|
|
dnl HP-UX 11.00 declares all these in <wchar.h> and lacks <wctype.h>.
|
|
AC_CACHE_CHECK([for wctype_t], [gl_cv_type_wctype_t],
|
|
[AC_COMPILE_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
|
|
included before <wchar.h>.
|
|
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
|
|
must be included before <wchar.h>. */
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <wchar.h>
|
|
#if HAVE_WCTYPE_H
|
|
# include <wctype.h>
|
|
#endif
|
|
wctype_t a;
|
|
]],
|
|
[[]])],
|
|
[gl_cv_type_wctype_t=yes],
|
|
[gl_cv_type_wctype_t=no])
|
|
])
|
|
if test $gl_cv_type_wctype_t = no; then
|
|
HAVE_WCTYPE_T=0
|
|
fi
|
|
|
|
dnl We assume that the wctrans() and towctrans() functions exist if and only
|
|
dnl if the type wctrans_t is defined in <wctype.h>.
|
|
AC_CACHE_CHECK([for wctrans_t], [gl_cv_type_wctrans_t],
|
|
[AC_COMPILE_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
|
|
included before <wchar.h>.
|
|
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
|
|
must be included before <wchar.h>. */
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <wchar.h>
|
|
#include <wctype.h>
|
|
wctrans_t a;
|
|
]],
|
|
[[]])],
|
|
[gl_cv_type_wctrans_t=yes],
|
|
[gl_cv_type_wctrans_t=no])
|
|
])
|
|
if test $gl_cv_type_wctrans_t = no; then
|
|
HAVE_WCTRANS_T=0
|
|
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([[
|
|
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
|
|
<wchar.h>.
|
|
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
|
|
included before <wchar.h>. */
|
|
#if !(defined __GLIBC__ && !defined __UCLIBC__)
|
|
# include <stddef.h>
|
|
# include <stdio.h>
|
|
# include <time.h>
|
|
# include <wchar.h>
|
|
#endif
|
|
#include <wctype.h>
|
|
]],
|
|
[wctype iswctype wctrans towctrans
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([gl_WCTYPE_MODULE_INDICATOR],
|
|
[
|
|
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
|
|
AC_REQUIRE([gl_WCTYPE_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_WCTYPE_H_DEFAULTS],
|
|
[
|
|
GNULIB_ISWBLANK=0; AC_SUBST([GNULIB_ISWBLANK])
|
|
GNULIB_WCTYPE=0; AC_SUBST([GNULIB_WCTYPE])
|
|
GNULIB_ISWCTYPE=0; AC_SUBST([GNULIB_ISWCTYPE])
|
|
GNULIB_WCTRANS=0; AC_SUBST([GNULIB_WCTRANS])
|
|
GNULIB_TOWCTRANS=0; AC_SUBST([GNULIB_TOWCTRANS])
|
|
dnl Assume proper GNU behavior unless another module says otherwise.
|
|
HAVE_ISWBLANK=1; AC_SUBST([HAVE_ISWBLANK])
|
|
HAVE_WCTYPE_T=1; AC_SUBST([HAVE_WCTYPE_T])
|
|
HAVE_WCTRANS_T=1; AC_SUBST([HAVE_WCTRANS_T])
|
|
REPLACE_ISWBLANK=0; AC_SUBST([REPLACE_ISWBLANK])
|
|
])
|