Replace update_crc32 helper function with crc32 from zlib

It is optimized to the maximum and if we already use zlib anyway,
why not use zlib crc32? This also makes zlib a hard dependency which
also means the whole "do we have a compressor" sanity check in the
build system can be removed.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/sqfs/data_writer.c b/lib/sqfs/data_writer.c
index 55c92ad..c584f1e 100644
--- a/lib/sqfs/data_writer.c
+++ b/lib/sqfs/data_writer.c
@@ -16,6 +16,7 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <errno.h>
+#include <zlib.h>
 
 struct data_writer_t {
 	block_t *frag_block;
@@ -229,7 +230,7 @@ static int handle_fragment(data_writer_t *data, block_t *blk)
 {
 	file_info_t *fi = blk->user, *ref;
 
-	fi->fragment_chksum = update_crc32(0, blk->data, blk->size);
+	fi->fragment_chksum = crc32(0, blk->data, blk->size);
 
 	ref = fragment_by_chksum(fi, fi->fragment_chksum, blk->size,
 				 data->list, data->super->block_size);