diff options
Diffstat (limited to 'archive-tar.c')
| -rw-r--r-- | archive-tar.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/archive-tar.c b/archive-tar.c index 53d0ef685c..efba78118b 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -463,6 +463,9 @@ static const char internal_gzip_command[] = "git archive gzip"; static int write_tar_filter_archive(const struct archiver *ar, struct archiver_args *args) { +#if ZLIB_VERNUM >= 0x1221 + struct gz_header_s gzhead = { .os = 3 }; /* Unix, for reproducibility */ +#endif struct strbuf cmd = STRBUF_INIT; struct child_process filter = CHILD_PROCESS_INIT; int r; @@ -473,6 +476,10 @@ static int write_tar_filter_archive(const struct archiver *ar, if (!strcmp(ar->filter_command, internal_gzip_command)) { write_block = tgz_write_block; git_deflate_init_gzip(&gzstream, args->compression_level); +#if ZLIB_VERNUM >= 0x1221 + if (deflateSetHeader(&gzstream.z, &gzhead) != Z_OK) + BUG("deflateSetHeader() called too late"); +#endif gzstream.next_out = outbuf; gzstream.avail_out = sizeof(outbuf); |