Ruby Issue Tracking System

01/07/2026

04:55 AM Ruby Revision 25c72b0e (git): Support customizable rustc_flags for rustc builds.

Add `rustc_flags` option for configure that appends to RUSTC_FLAGS
flags used when compiling with rustc for customizable build flags.
It appends to existing defaults in RUSTC_FLAGS.
Co-authored-by: Alan Wu <XrXr@users.noreply.github.com> jprokop (Jarek Prokop)

10/03/2025

12:17 PM Ruby Bug #21620: master branch: LTO with >= -O2 optimization causes miniruby to segfault in vm_cc

Ephemeral builds at https://copr.fedorainfracloud.org/coprs/jackorp/ruby-3.5/build/9642454/ (logs under `builder-live.log` per Distro/arch combination) with LTO with the patch applied on top of the 00fcef5378 commit are OK. They passed c... jprokop (Jarek Prokop)

10/01/2025

11:51 AM Ruby Bug #21620 (Closed): master branch: LTO with >= -O2 optimization causes miniruby to segfault in vm_cc

Ruby built with LTO (`-flto`) with the -O2 or -O3 optimization causes misbehavior in miniruby.
Using -O1 does not result in segfault. Higher optimization is required. Removing `-flto` results in no segfault.
Preview1 was OK, after ru... jprokop (Jarek Prokop)

01/24/2025

02:28 PM Ruby Bug #21024: Ruby including <cstdbool> generates compilation warning with GCC 15, header is deprecated in C++17,

Sent a backport for Ruby 3.4 as well https://github.com/ruby/ruby/pull/12628
as that the Ruby we ship in Fedora in combination with GCC 15 where the warning was encountered. jprokop (Jarek Prokop)

01/10/2025

04:55 PM Ruby Bug #21024 (Closed): Ruby including <cstdbool> generates compilation warning with GCC 15, header is deprecated in C++17,

C++ compiler in GCC 15 now generates a warning when trying to include `<cstdbool>`.
This file is being included when compiling with C++ compiler from `include/ruby/internal/stdbool.h`.
In C++, true, false and bool are keywords so inc... jprokop (Jarek Prokop)

01/25/2024

04:32 PM Ruby Bug #20208: Net::HTTP errors with Errno::EAFNOSUPPORT when setting local_host with Addrinfo

I'll address each suggestion from my POV, though this is not my usual area of work. It sure is tricky.
1) I feel like this might bring more subtle bugs. I think you're right about also expecting that "localhost" should also work. Or e... jprokop (Jarek Prokop)

01/24/2024

09:49 AM Ruby Bug #20208 (Closed): Net::HTTP errors with Errno::EAFNOSUPPORT when setting local_host with Addrinfo

A bug was found when dealing with Ruby tests downstream. One of our builders has a specific networking configuration, resulting in Ruby incorrectly binding a socket, resulting in exception Errno::EAFNOSUPPORT,
despite localhost being IP... jprokop (Jarek Prokop)

01/05/2024

09:27 PM Ruby Bug #20154: aarch64: configure overrides `-mbranch-protection` if it was set in CFLAGS via environment

I have looked at other aspects of the options and inspected the assembly outputted with -mbranch-protection={standard,pac-ret} in Fedora PR's workaround https://src.fedoraproject.org/rpms/ruby/pull-request/167 jprokop (Jarek Prokop)

09:25 PM Ruby Bug #20154 (Closed): aarch64: configure overrides `-mbranch-protection` if it was set in CFLAGS via environment

Recently a GH PR was merged <https://github.com/ruby/ruby/pull/9306> For PAC/BTI support on ARM CPUs for Coroutine.S.
Without proper compilation support in configure.ac it segfaults Ruby with fibers on CPUs where PAC is supported: htt... jprokop (Jarek Prokop)

06/01/2023

12:16 PM Ruby Bug #19576: Backport request: Gemfile.lock resolving is broken with bundler shipped with Ruby 3.1.4

With the --deployment option true:
This commit introduced the issue: https://github.com/rubygems/rubygems/commit/09b90646f42a6591c280bbd7484c9bb0aa26b6ae
This commit fixed the issue: https://github.com/rubygems/rubygems/commit/d55ad9b01... jprokop (Jarek Prokop)