Re: Building m4 on BSDI 4.0.1

[Eric Blake]

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According to Chris McGuire on 1/8/2007 12:59 PM:
>> The second one is for you - can you locate a system header that
>> defines wchar_t on your platform?  Something like the following will be a
>> good start,
>>
>> $ grep -E '(typedef|define).*wchar_t' /usr/include/*.h /usr/include/sys/*.h
> 
> Here's the output from the above command:
> /usr/include/rune.h:typedef _BSD_WCHAR_T_       wchar_t;
> /usr/include/stddef.h:typedef   _BSD_WCHAR_T_   wchar_t;
> /usr/include/stdlib.h:typedef   _BSD_WCHAR_T_   wchar_t;

It looks like the following gnulib patch is needed.  Chris, can you
confirm one last thing?  Check that the following compiles for you (gcc -c
file.c), but that when you comment out the line with <stddef.h>, that the
compile fails:

/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.
   Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
   <wchar.h>.
   BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
   <wchar.h>.
   BSDI 4.0.1 has a bug: <stddef.h> must be included before <wchar.h>.
  */
# include <stddef.h>
# include <stdio.h>
# include <time.h>
# include <wchar.h>
wchar_t w;



2007-01-08  Eric Blake  <address@hidden>

        * lib/wctype_.h [HAVE_WINT_T]: Include <stddef.h> before
        <wchar.h>, to work around BSDI 4.0.1 bug.
        Reported by Chris McGuire.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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Index: lib/wctype_.h
===================================================================
RCS file: /sources/gnulib/gnulib/lib/wctype_.h,v
retrieving revision 1.5
diff -u -p -r1.5 wctype_.h
--- lib/wctype_.h       6 Jan 2007 00:27:48 -0000       1.5
+++ lib/wctype_.h       9 Jan 2007 03:56:00 -0000
@@ -1,6 +1,6 @@
 /* A substitute for ISO C99 <wctype.h>, for platforms that lack it.
 
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -34,7 +34,9 @@
    Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
    <wchar.h>.
    BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
-   <wchar.h>.  */
+   <wchar.h>.
+   BSDI 4.0.1 has a bug: <stddef.h> must be included before <wchar.h>.  */
+# include <stddef.h>
 # include <stdio.h>
 # include <time.h>
 # include <wchar.h>