Ruby Issue Tracking System

02/25/2026

08:23 AM Ruby Bug #21870: Regexp: Warnings when using slightly overlapping \p{...} classes

Using two or more overlapping Unicode properties may not be very frequent, but in most cases isn't a mistake. If a user writes `/[\p{Word}\p{S}]/`, that expression should just match all word characters and all symbol characters, because ... duerst (Martin Dürst)

11/10/2025

07:19 AM Ruby Bug #21676: make[2]: *** No rule to make target '../../../.././ext/-test-/namespace/yay1/yay1.h', needed by 'yay1.o'. Stop.

nagachika (Tomoyuki Chikanaga) wrote in #note-1:
> In my environment, removing `exts.mk` in build directory resolved the issue.
This worked for me, too. duerst (Martin Dürst)

11/08/2025

11:33 PM Ruby Bug #21676 (Closed): make[2]: *** No rule to make target '../../../.././ext/-test-/namespace/yay1/yay1.h', needed by 'yay1.o'. Stop.

When I tried to compile Ruby with make up; make, I got the message in the Subject.
This seems similar to bug #19481, but the various kinds of advice (`./config.status` or `./autogen.sh; ./configure; make`) given there didn't solve the p... duerst (Martin Dürst)

11/03/2025

12:44 AM Ruby Bug #21559: Unicode normalization nfd -> nfc -> nfd is not reversible

Note to potential backporters: https://github.com/ruby/ruby/commit/bd51b20c50 should also be backported. duerst (Martin Dürst)

11/02/2025

10:22 AM Ruby Revision bd51b20c (git): minor code allignment (related to bug 21559)

duerst (Martin Dürst)

02:10 AM Ruby Bug #21559: Unicode normalization nfd -> nfc -> nfd is not reversible

Backport would only be needed if the upgrade to Unicode 16.0.0 (see https://bugs.ruby-lang.org/issues/20724) is backported. duerst (Martin Dürst)

02:06 AM Ruby Bug #21559 (Closed): Unicode normalization nfd -> nfc -> nfd is not reversible

Added regression test at https://github.com/ruby/ruby/commit/a122d7a58e91ed6cd531e906cb398688d7cc8b17
and fix at https://github.com/ruby/ruby/commit/e4c8e3544237b8c0efba6b945173dc66552d641c.
Many thanks to Tomoya Ishida for finding thi... duerst (Martin Dürst)

12:27 AM Ruby Revision a122d7a5 (git): Add regression test for bug 21559.

duerst (Martin Dürst)

12:27 AM Ruby Revision 83a943b5 (git): Add test for Unicode normalization of Gurung Khema.

duerst (Martin Dürst)

12:27 AM Ruby Revision e4c8e354 (git): Remove recursion in UnicodeNormalize.nfc_one, fixing bug 21159.

duerst (Martin Dürst)