Fix compilation issue when ZLIB is available and not LZO and ZSTD

diff --git a/bacula/src/filed/backup.c b/bacula/src/filed/backup.c
index abedc64a29f084a75d86c9e6a38aa04b373075e2..4142ea7f2d6263278eec98510bfb69f93e36b590 100644 (file)
--- a/bacula/src/filed/backup.c
+++ b/bacula/src/filed/backup.c
@@ -1261,7 +1261,10 @@ static bool setup_compression(bctx_t &bctx)
    bctx.max_compress_len = 0;
    bctx.cbuf = NULL;
    bctx.cbuf2 = NULL;
+
+#if defined(HAVE_LZO) || defined(HAVE_ZSTD)
    memset(&bctx.ch, 0, sizeof(comp_stream_header));
+#endif
 
 # ifdef HAVE_LIBZ
    int zstat;