+++ /dev/null
-# wctype_h.m4 serial 18
-
-dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-
-dnl Copyright (C) 2006-2013 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])
-
- gl_CHECK_NEXT_HEADERS([wctype.h])
- if test $ac_cv_header_wctype_h = yes; then
- if test $ac_cv_func_iswcntrl = yes; then
- dnl Linux libc5 has an iswprint function that returns 0 for all arguments.
- dnl The other functions are likely broken in the same way.
- AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
- [
- AC_RUN_IFELSE(
- [AC_LANG_SOURCE([[
- /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
- included before <wchar.h>.
- BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h>
- must be included before <wchar.h>. */
- #include <stddef.h>
- #include <stdio.h>
- #include <time.h>
- #include <wchar.h>
- #include <wctype.h>
- int main () { return iswprint ('x') == 0; }
- ]])],
- [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
- [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
- #if __GNU_LIBRARY__ == 1
- Linux libc5 i18n is broken.
- #endif]], [])],
- [gl_cv_func_iswcntrl_works="guessing yes"],
- [gl_cv_func_iswcntrl_works="guessing no"])
- ])
- ])
- fi
- HAVE_WCTYPE_H=1
- else
- HAVE_WCTYPE_H=0
- fi
- AC_SUBST([HAVE_WCTYPE_H])
-
- case "$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])
-])
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