Avoid installation glitches on Solaris 8 with Sun C 5.4.

* lib/.cvsignore: Add system-ioctl.h.
* lib/Makefile.tmpl (noinst_HEADERS): Add system-ioctl.h.
* src/buffer.c: Include system-ioctl.h.
* src/compare.c: Likewise.
* src/delete.c: Likewise.
* src/system.c: Include <getline.h>, <setenv.h>.
* src/tar.c: Include <getline.h>.

src/delete.c

@@ -1,7 +1,7 @@
 /* Delete entries from a tar archive.
 
-   Copyright (C) 1988, 1992, 1994, 1996, 1997, 2000, 2001, 2003 Free
-   Software Foundation, Inc.
+   Copyright (C) 1988, 1992, 1994, 1996, 1997, 2000, 2001, 2003, 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 the
@@ -18,6 +18,7 @@
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #include <system.h>
+#include <system-ioctl.h>
 
 #include "common.h"
 #include <rmt.h>
@@ -33,7 +34,7 @@ extern union block *record_end;
 extern union block *current_block;
 extern union block *recent_long_name;
 extern union block *recent_long_link;
-extern off_t records_read; 
+extern off_t records_read;
 extern off_t records_written;
 
 /* The number of records skipped at the start of the archive, when
@@ -184,7 +185,7 @@ delete_archive_members (void)
 	      skip_member ();
 	      break;
 	    }
-	  
+
 	  /* Fall through.  */
 	case HEADER_SUCCESS_EXTENDED:
 	  logical_status = status;
@@ -261,9 +262,9 @@ delete_archive_members (void)
 	  if (current_block == record_end)
 	    flush_archive ();
 	  status = read_header (false);
-	  
+
 	  xheader_decode (&current_stat_info);
-	  
+
 	  if (status == HEADER_ZERO_BLOCK && ignore_zeros_option)
 	    {
 	      set_next_block_after (current_header);