Hi Andrew,
Am 25.06.19 um 10:56 schrieb Andrew Bernard:
What is it about 19? Is it some magic borderline number in some unit
system in lilypond? Do we know?
I'd rather suspect there's some kind of "anthropic principle" at work
here: The bugs (at least the one I reported) should probably occur for
any staff size in some (staff-size-dependent) situations, but we notice
them with staff sizes that are used in real-world situations, hence our
MWEs expose _those_ cases. But of course I lilypond-user Mailinglist
<lilypond-user@gnu.org>might be wrong, especially for the
misplaced-note-head problem which occurs for quite a generic situation.
Anyway: The misplaced-note-head bug
(https://sourceforge.net/p/testlilyissues/issues/5303/) first appeared
in 2.19.16 (I just found out that it's convenient as well as quite easy
to keep arbitrarily many LilyPond versions installed on the same account).
@gcc experts (hence posting to devel also): Unfortunately, I cannot
build 2.19.15 on my machine because of errors of the type:
/home/lukas/git/lilypond/lily/include/smobs.tcc:98:25: error: invalid
conversion from 'int' to 'scm_unused_struct* (*)(SCM, SCM) {aka
scm_unused_struct* (*)(scm_unused_struct*, scm_unused_struct*)}'
[-fpermissive]
scm_set_smob_equalp (smob_tag_, Super::equal_p);
I suspect that this is a case of some conversions having become illegal
for later versions of gcc. Is there a cheap way to make the build
succeed in order to be able to bisect for the misplaced-note-head bug?
Best
Lukas
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