fts: remove redundant macro definitions

[Bruno Haible]

Hi Jim,

Now that gnulib-tool defines GNULIB_FTS when the fts module is in use, and
GNULIB_FTS_LGPL when the fts-lgpl module is in use, the _LGPL_PACKAGE macro
is redundant. Here is a proposed patch:

2007-01-01  Bruno Haible  <address@hidden>

        * m4/fts.m4 (gl_FUNC_FTS_LGPL): Remove _LGPL_PACKAGE macro definition.
        * lib/fts_.h (_LGPL_PACKAGE): Remove macro.
        Use !GNULIB_FTS instead of _LGPL_PACKAGE.
        * lib/fts.c: Likewise.

*** m4/fts.m4.bak       2006-08-22 14:50:23.000000000 +0200
--- m4/fts.m4   2007-01-01 15:46:01.000000000 +0100
***************
*** 1,5 ****
! #serial 11
! dnl Copyright (C) 2005, 2006 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.
--- 1,5 ----
! #serial 12
! dnl Copyright (C) 2005-2007 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.
***************
*** 12,20 ****
  AC_DEFUN([gl_FUNC_FTS_LGPL],
  [
    AC_REQUIRE([gl_FUNC_FTS_CORE])
-   AC_DEFINE([_LGPL_PACKAGE], 1,
-     [Define to 1 if compiling for a package to be distributed under the
-      GNU Lesser Public License.])
  ])
  
  AC_DEFUN([gl_FUNC_FTS_CORE],
--- 12,17 ----
*** lib/fts_.h.bak      2006-11-21 02:59:27.000000000 +0100
--- lib/fts_.h  2007-01-01 16:23:11.000000000 +0100
***************
*** 1,6 ****
  /* Traverse a file hierarchy.
  
!    Copyright (C) 2004, 2005, 2006 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
--- 1,6 ----
  /* Traverse a file hierarchy.
  
!    Copyright (C) 2004, 2005, 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
***************
*** 52,58 ****
  
  # ifdef _LIBC
  #  include <features.h>
- #  define _LGPL_PACKAGE 1
  # else
  #  undef __THROW
  #  define __THROW
--- 52,57 ----
***************
*** 142,148 ****
  # define FTS_STOP     0x2000          /* (private) unrecoverable error */
        int fts_options;                /* fts_open options, global flags */
  
! # if !_LGPL_PACKAGE
        union {
                /* This data structure is used if FTS_TIGHT_CYCLE_CHECK is
                   specified.  It records the directories between a starting
--- 141,147 ----
  # define FTS_STOP     0x2000          /* (private) unrecoverable error */
        int fts_options;                /* fts_open options, global flags */
  
! # if GNULIB_FTS
        union {
                /* This data structure is used if FTS_TIGHT_CYCLE_CHECK is
                   specified.  It records the directories between a starting
*** lib/fts.c.bak       2006-12-09 19:47:45.000000000 +0100
--- lib/fts.c   2007-01-01 16:23:06.000000000 +0100
***************
*** 1,6 ****
  /* Traverse a file hierarchy.
  
!    Copyright (C) 2004, 2005, 2006 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
--- 1,6 ----
  /* Traverse a file hierarchy.
  
!    Copyright (C) 2004, 2005, 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
***************
*** 150,162 ****
  static int      fts_safe_changedir (FTS *, FTSENT *, int, const char *)
       internal_function;
  
! #if _LGPL_PACKAGE
  static bool enter_dir (FTS *fts, FTSENT *ent) { return true; }
  static void leave_dir (FTS *fts, FTSENT *ent) {}
  static bool setup_dir (FTS *fts) { return true; }
  static void free_dir (FTS *fts) {}
- #else
- # include "fts-cycle.c"
  #endif
  
  #ifndef MAX
--- 150,162 ----
  static int      fts_safe_changedir (FTS *, FTSENT *, int, const char *)
       internal_function;
  
! #if GNULIB_FTS
! # include "fts-cycle.c"
! #else
  static bool enter_dir (FTS *fts, FTSENT *ent) { return true; }
  static void leave_dir (FTS *fts, FTSENT *ent) {}
  static bool setup_dir (FTS *fts) { return true; }
  static void free_dir (FTS *fts) {}
  #endif
  
  #ifndef MAX
***************
*** 1403,1409 ****
                        return (p->fts_level == FTS_ROOTLEVEL ? FTS_D : 
FTS_DOT);
                }
  
! #if _LGPL_PACKAGE
                {
                  /*
                   * Cycle detection is done by brute force when the directory
--- 1403,1409 ----
                        return (p->fts_level == FTS_ROOTLEVEL ? FTS_D : 
FTS_DOT);
                }
  
! #if !GNULIB_FTS
                {
                  /*
                   * Cycle detection is done by brute force when the directory