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These files have been created by running ./build-aux/bootstrap with Gnulib as at commit 5bb169c3be1f80fb22ee63d51b43dfdb1ac22d2a (with a date stamp of Mon Aug 3 12:34:38 2015 -0700), Autoconf 2.69, Automake 1.15 and Gettext 0.19.5.
210 lines
6.8 KiB
Plaintext
210 lines
6.8 KiB
Plaintext
# wctype_h.m4 serial 18
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dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
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dnl Copyright (C) 2006-2015 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 Written by Paul Eggert.
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AC_DEFUN([gl_WCTYPE_H],
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[
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AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
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AC_REQUIRE([AC_PROG_CC])
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_CHECK_FUNCS_ONCE([iswcntrl])
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if test $ac_cv_func_iswcntrl = yes; then
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HAVE_ISWCNTRL=1
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else
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HAVE_ISWCNTRL=0
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fi
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AC_SUBST([HAVE_ISWCNTRL])
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AC_REQUIRE([gt_TYPE_WINT_T])
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if test $gt_cv_c_wint_t = yes; then
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HAVE_WINT_T=1
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else
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HAVE_WINT_T=0
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fi
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AC_SUBST([HAVE_WINT_T])
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gl_CHECK_NEXT_HEADERS([wctype.h])
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if test $ac_cv_header_wctype_h = yes; then
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if test $ac_cv_func_iswcntrl = yes; then
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dnl Linux libc5 has an iswprint function that returns 0 for all arguments.
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dnl The other functions are likely broken in the same way.
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AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
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[
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AC_RUN_IFELSE(
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[AC_LANG_SOURCE([[
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/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
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included before <wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
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must be included before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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#include <wctype.h>
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int main () { return iswprint ('x') == 0; }
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]])],
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[gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
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#if __GNU_LIBRARY__ == 1
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Linux libc5 i18n is broken.
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#endif]], [])],
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[gl_cv_func_iswcntrl_works="guessing yes"],
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[gl_cv_func_iswcntrl_works="guessing no"])
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])
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])
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fi
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HAVE_WCTYPE_H=1
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else
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HAVE_WCTYPE_H=0
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fi
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AC_SUBST([HAVE_WCTYPE_H])
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case "$gl_cv_func_iswcntrl_works" in
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*yes) REPLACE_ISWCNTRL=0 ;;
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*) REPLACE_ISWCNTRL=1 ;;
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esac
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AC_SUBST([REPLACE_ISWCNTRL])
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if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
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dnl Redefine all of iswcntrl, ..., iswxdigit in <wctype.h>.
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:
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fi
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if test $REPLACE_ISWCNTRL = 1; then
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REPLACE_TOWLOWER=1
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else
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AC_CHECK_FUNCS([towlower])
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if test $ac_cv_func_towlower = yes; then
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REPLACE_TOWLOWER=0
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else
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AC_CHECK_DECLS([towlower],,,
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[[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
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included before <wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
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must be included before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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#if HAVE_WCTYPE_H
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# include <wctype.h>
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#endif
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]])
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if test $ac_cv_have_decl_towlower = yes; then
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dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and
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dnl towupper() although it does not have the functions. Avoid a
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dnl collision with gnulib's replacement.
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REPLACE_TOWLOWER=1
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else
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REPLACE_TOWLOWER=0
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fi
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fi
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fi
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AC_SUBST([REPLACE_TOWLOWER])
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if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then
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dnl Redefine towlower, towupper in <wctype.h>.
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:
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fi
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dnl We assume that the wctype() and iswctype() functions exist if and only
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dnl if the type wctype_t is defined in <wchar.h> or in <wctype.h> if that
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dnl exists.
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dnl HP-UX 11.00 declares all these in <wchar.h> and lacks <wctype.h>.
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AC_CACHE_CHECK([for wctype_t], [gl_cv_type_wctype_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
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included before <wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
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must be included before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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#if HAVE_WCTYPE_H
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# include <wctype.h>
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#endif
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wctype_t a;
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]],
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[[]])],
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[gl_cv_type_wctype_t=yes],
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[gl_cv_type_wctype_t=no])
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])
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if test $gl_cv_type_wctype_t = no; then
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HAVE_WCTYPE_T=0
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fi
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dnl We assume that the wctrans() and towctrans() functions exist if and only
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dnl if the type wctrans_t is defined in <wctype.h>.
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AC_CACHE_CHECK([for wctrans_t], [gl_cv_type_wctrans_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
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included before <wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
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must be included before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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#include <wctype.h>
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wctrans_t a;
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]],
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[[]])],
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[gl_cv_type_wctrans_t=yes],
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[gl_cv_type_wctrans_t=no])
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])
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if test $gl_cv_type_wctrans_t = no; then
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HAVE_WCTRANS_T=0
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fi
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use.
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gl_WARN_ON_USE_PREPARE([[
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/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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<wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
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included before <wchar.h>. */
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#if !(defined __GLIBC__ && !defined __UCLIBC__)
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# include <stddef.h>
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# include <stdio.h>
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# include <time.h>
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# include <wchar.h>
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#endif
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#include <wctype.h>
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]],
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[wctype iswctype wctrans towctrans
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])
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])
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AC_DEFUN([gl_WCTYPE_MODULE_INDICATOR],
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[
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dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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AC_DEFUN([gl_WCTYPE_H_DEFAULTS],
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[
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GNULIB_ISWBLANK=0; AC_SUBST([GNULIB_ISWBLANK])
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GNULIB_WCTYPE=0; AC_SUBST([GNULIB_WCTYPE])
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GNULIB_ISWCTYPE=0; AC_SUBST([GNULIB_ISWCTYPE])
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GNULIB_WCTRANS=0; AC_SUBST([GNULIB_WCTRANS])
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GNULIB_TOWCTRANS=0; AC_SUBST([GNULIB_TOWCTRANS])
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_ISWBLANK=1; AC_SUBST([HAVE_ISWBLANK])
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HAVE_WCTYPE_T=1; AC_SUBST([HAVE_WCTYPE_T])
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HAVE_WCTRANS_T=1; AC_SUBST([HAVE_WCTRANS_T])
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REPLACE_ISWBLANK=0; AC_SUBST([REPLACE_ISWBLANK])
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])
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