On musl libc, ISO-2022-JP encoder is too eager to switch back to 1 byte encoding, musl's iconv always switch back after every combining character. Comparing glibc and musl's output for this command $ sed q t/t3900/ISO-2022-JP.txt| iconv -f ISO-2022-JP -t utf-8 | iconv -f utf-8 -t ISO-2022-JP | xxd glibc: 00000000: 1b24 4224 4f24 6c24 5224 5b24 551b 2842 .$B$O$l$R$[$U.(B 00000010: 0a . musl: 00000000: 1b24 4224 4f1b 2842 1b24 4224 6c1b 2842 .$B$O.(B.$B$l.(B 00000010: 1b24 4224 521b 2842 1b24 4224 5b1b 2842 .$B$R.(B.$B$[.(B 00000020: 1b24 4224 551b 2842 0a .$B$U.(B. Although musl iconv's output isn't optimal, it's still correct. >From commit 7d509878b8, ("pretty.c: format string with truncate respects logOutputEncoding", 2014-05-21), we're encoding the message to utf-8 first, then format it and convert the message to the actual output encoding on git commit --squash. Thus, t3900 is failing on Linux with musl libc. Reencode to utf-8 before arranging rebase's todo list. Signed-off-by: Doan Tran Cong Danh <congdanhqx@xxxxxxxxx> --- Notes: The todo list shown to user has already been reencoded by sequencer_make_script, without this patch it looks like this: $ head -3 .git/rebase-merge/git-rebase-todo | xxd 00000000: 7069 636b 2065 6633 3961 3033 201b 2442 pick ef39a03 .$B 00000010: 244f 1b28 421b 2442 246c 1b28 421b 2442 $O.(B.$B$l.(B.$B 00000020: 2452 1b28 421b 2442 245b 1b28 421b 2442 $R.(B.$B$[.(B.$B 00000030: 2455 1b28 420a 7069 636b 2062 3832 3931 $U.(B.pick b8291 00000040: 3336 2073 7175 6173 6821 201b 2442 244f 36 squash! .$B$O 00000050: 1b28 421b 2442 246c 1b28 421b 2442 2452 .(B.$B$l.(B.$B$R 00000060: 1b28 421b 2442 245b 1b28 421b 2442 2455 .(B.$B$[.(B.$B$U 00000070: 1b28 420a 7069 636b 2062 3532 3132 6437 .(B.pick b5212d7 00000080: 2069 6e74 6572 6d65 6469 6174 6520 636f intermediate co 00000090: 6d6d 6974 0a mmit. sequencer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sequencer.c b/sequencer.c index 9d5964fd81..69430fe23f 100644 --- a/sequencer.c +++ b/sequencer.c @@ -5169,7 +5169,7 @@ int todo_list_rearrange_squash(struct todo_list *todo_list) *commit_todo_item_at(&commit_todo, item->commit) = item; parse_commit(item->commit); - commit_buffer = get_commit_buffer(item->commit, NULL); + commit_buffer = logmsg_reencode(item->commit, NULL, "UTF-8"); find_commit_subject(commit_buffer, &subject); format_subject(&buf, subject, " "); subject = subjects[i] = strbuf_detach(&buf, &subject_len); -- 2.24.0.rc1.3.g89530838a3.dirty