"Fossies" - the Fresh Open Source Software Archive

Member "nano-4.5/m4/iswblank.m4" (11 Mar 2019, 1249 Bytes) of package /linux/misc/nano-4.5.tar.xz:


As a special service "Fossies" has tried to format the requested text file into HTML format (style: standard) with prefixed line numbers. Alternatively you can here view or download the uninterpreted source code file.

    1 # iswblank.m4 serial 4
    2 dnl Copyright (C) 2011-2019 Free Software Foundation, Inc.
    3 dnl This file is free software; the Free Software Foundation
    4 dnl gives unlimited permission to copy and/or distribute it,
    5 dnl with or without modifications, as long as this notice is preserved.
    6 
    7 AC_DEFUN([gl_FUNC_ISWBLANK],
    8 [
    9   AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
   10   AC_REQUIRE([gl_WCTYPE_H])
   11   dnl Persuade glibc <wctype.h> to declare iswblank().
   12   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   13   AC_CHECK_FUNCS_ONCE([iswblank])
   14   AC_CHECK_DECLS([iswblank], , , [[
   15 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
   16    <wchar.h>.
   17    BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
   18    before <wchar.h>.  */
   19 #include <stddef.h>
   20 #include <stdio.h>
   21 #include <time.h>
   22 #include <wchar.h>
   23 #include <wctype.h>
   24 ]])
   25   if test $ac_cv_func_iswblank = no; then
   26     HAVE_ISWBLANK=0
   27     if test $ac_cv_have_decl_iswblank = yes; then
   28       REPLACE_ISWBLANK=1
   29     fi
   30   fi
   31   if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
   32     dnl Redefine all of iswcntrl, ..., towupper in <wctype.h>.
   33     :
   34   else
   35     if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then
   36       dnl Redefine only iswblank.
   37       :
   38     fi
   39   fi
   40 
   41 ])