diff --git a/archival/libunarchive/check_trailer_gzip.c b/archival/libunarchive/check_trailer_gzip.c
deleted file mode 100644
index b30db71ae..000000000
--- a/archival/libunarchive/check_trailer_gzip.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- *  busybox gunzip trailing header handler
- *  Copyright Glenn McGrath 2002
- *
- *  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 Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include "config.h"
-#include "busybox.h"
-#include "unarchive.h"
-
-extern unsigned int gunzip_crc;
-extern unsigned int gunzip_bytes_out;
-extern unsigned char *bytebuffer;
-extern unsigned short bytebuffer_offset;
-extern unsigned short bytebuffer_size;
-//extern unsigned char *gunzip_in_buffer;
-//extern unsigned char gunzip_in_buffer_count;
-
-extern void check_trailer_gzip(int src_fd)
-{
-	unsigned int stored_crc = 0;
-	unsigned char count;
-
-	/* top up the input buffer with the rest of the trailer */
-	count = bytebuffer_size - bytebuffer_offset;
-	if (count < 8) {
-		xread_all(src_fd, &bytebuffer[bytebuffer_size], 8 - count);
-		bytebuffer_size += 8 - count;
-	}
-	for (count = 0; count != 4; count++) {
-		stored_crc |= (bytebuffer[bytebuffer_offset] << (count * 8));
-		bytebuffer_offset++;
-	}
-
-	/* Validate decompression - crc */
-	if (stored_crc != (gunzip_crc ^ 0xffffffffL)) {
-		error_msg_and_die("crc error");
-	}
-
-	/* Validate decompression - size */
-	if (gunzip_bytes_out !=
-		(bytebuffer[bytebuffer_offset] | (bytebuffer[bytebuffer_offset+1] << 8) |
-		(bytebuffer[bytebuffer_offset+2] << 16) | (bytebuffer[bytebuffer_offset+3] << 24))) {
-		error_msg_and_die("Incorrect length, but crc is correct");
-	}
-
-}