Bug #20760: Ruby 3.0.6 fails to build on macOS 15.0 24A335 arm64

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN

[jschoolcraft (Jeff Schoolcraft)]

I support a Rails 6.1 project with Ruby 3.0.6 and am unable to build 3.0.6 on a new mac book pro running macOS 15.0 24A335 arm64.

I've attached the build log the primary failure is related to maybe_unused in BigDecimal.

I tried multiple workarounds suggested in:

• https://github.com/rvm/rvm/issues/5365
• https://www.reddit.com/r/ruby/comments/yjvn5c/ruby_30_on_m1_failing_because_of_bigdecimal/
• https://bugs.ruby-lang.org/issues/18912#note-6
• https://github.com/rbenv/ruby-build/discussions/2185

I'm able to install 3.0.6 on macOS 14.6.1 23G93 arm64 with only these changes:

brew install rbenv/tap/openssl@1.0
asdf install ruby 3.0.6 --with-openssl-dir="$(brew --prefix)/opt/openssl@1.0"

[nobu (Nobuyoshi Nakada)]

• Related to Bug #20499: Ruby builds on macOS store absolute paths for AR and NM in rbconfig since Ruby 3.2.3/3.3.0 added

[nobu (Nobuyoshi Nakada)]

• Related to Bug #18504: configure prints a warning when cross-compiling added

[nobu (Nobuyoshi Nakada)]

Following commits will be needed to compile 3.0 with the recent Xcode:

• 4113862c0068a8a95d752f5fdf14980f92cd41d7
  Do not search for commands with double tool prefixes [Bug #18504]
• 17c8bf2c63192036058b03a04edf7a8478e47833
  configure: Don't use use LD=clang, ld takes different flags
• 1e08a9f0e9058186db18f29efc6458c00f10a856
  [Bug #20499] Use Xcode owned tools for Xcode clang
• 1dfe75b0beb7171b8154ff0856d5149be0207724
  Fixed 'maybe_unused' attribute

[hsbt (Hiroshi SHIBATA)]

openssl@1.0 is not related for this build failure.

I could build applied https://bugs.ruby-lang.org/projects/ruby-master/repository/git/revisions/1dfe75b0beb7171b8154ff0856d5149be0207724 on Ruby 3.0.6 with macOS 15.1 beta5. The instruction of ruby-build is here:

$ curl -sSL https://github.com/ruby/ruby/commit/1dfe75b0beb7171b8154ff0856d5149be0207724.patch | rbenv install --patch 3.0.6

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Closed

Ruby 3.0 is EOL now. We will not backport related changes into ruby_3_0 branch.