-dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# wctype.m4 serial 2
+dnl Copyright (C) 2011-2014 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_DEFUN([gl_FUNC_WCTYPE],
[
- AC_CHECK_FUNCS_ONCE([iswcntrl])
- AC_CHECK_HEADERS_ONCE([wctype.h])
- AC_REQUIRE([AC_C_INLINE])
-
- AC_REQUIRE([gt_TYPE_WINT_T])
- AC_SUBST([HAVE_WINT_T])
-
- if test $ac_cv_header_wctype_h = yes; then
- gl_ABSOLUTE_HEADER([wctype.h])
- ABSOLUTE_WCTYPE_H=\"$gl_cv_absolute_wctype_h\"
- HAVE_WCTYPE_H=1
- else
- ABSOLUTE_WCTYPE_H=\"no/such/file/wctype.h\"
- HAVE_WCTYPE_H=0
- fi
- AC_SUBST([ABSOLUTE_WCTYPE_H])
- AC_SUBST([HAVE_WCTYPE_H])
-
- WCTYPE_H=wctype.h
- HAVE_WCTYPE_CTMP_BUG=0
- if test $ac_cv_header_wctype_h = yes; then
- dnl IRIX 5.3 has a bug: its isw* macros reference an undefined variable
- dnl _ctmp_. Test against this bug.
- AC_CACHE_CHECK([whether wctype macros need _ctmp_ declared],
- [gl_cv_wctype_ctmp_bug],
- [gl_cv_wctype_ctmp_bug=no
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <wctype.h>
- ]],
- [[return iswprint (0);]])],
- [gl_cv_wctype_ctmp_bug='no, but bare wctype.h does not work'],
- [AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <wctype.h>
- #include <ctype.h>
- wchar_t _ctmp_;]],
- [[return iswprint (0);]])],
- [gl_cv_wctype_ctmp_bug=yes])])])
- case $gl_cv_wctype_ctmp_bug,$ac_cv_func_iswcntrl in #(
- yes,*)
- HAVE_WCTYPE_CTMP_BUG=1;; #(
- no,yes)
- WCTYPE_H=;;
- esac
- fi
- AC_SUBST([WCTYPE_H])
- AC_SUBST([HAVE_WCTYPE_CTMP_BUG])
+ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
+ AC_REQUIRE([gl_WCTYPE_H])
+ HAVE_WCTYPE=$HAVE_WCTYPE_T
])
projects / gnulib.git / blobdiff