Building fails on Fedora 42

[jakob-lilliemarck]

I just installed the latest official build of Fedora 42 (KDE plasma) and am running into issue strying to install a Ruby on Rails project that depends on this package.

From the mkmf.rb logfile:

/home/jakob/.rvm/rubies/ruby-3.2.7/include/ruby-3.2.0/ruby/internal/scan_args.h:390:30: note: ‘bool’ is defined in header ‘<stdbool.h>’; this is probably fixable by adding ‘#include <stdbool.h>’
/home/jakob/.rvm/rubies/ruby-3.2.7/include/ruby-3.2.0/ruby/internal/scan_args.h:390:43: error: unknown type name ‘bool’

trying to bundle install a Ruby project using:

Fedora Linux 42 (KDE Plasma)
Ruby 3.2.3
GCC 15.1.1-2

The issue is with io-event:

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    current directory: /home/jakob/.rvm/gems/ruby-3.2.7/gems/io-event-1.1.7/ext
/home/jakob/.rvm/rubies/ruby-3.2.7/bin/ruby extconf.rb
checking for rb_ext_ractor_safe()... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/home/jakob/.rvm/rubies/ruby-3.2.7/bin/$(RUBY_BASE_NAME)
/home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:490:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.

        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:583:in `try_link0'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:601:in `try_link'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:812:in `try_func'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:1116:in `block in have_func'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:989:in `block in checking_for'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:354:in `block (2 levels) in postpone'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:324:in `open'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:354:in `block in postpone'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:324:in `open'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:350:in `postpone'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:988:in `checking_for'
        from /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/mkmf.rb:1115:in `have_func'
        from extconf.rb:42:in `<main>'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /home/jakob/.rvm/gems/ruby-3.2.7/extensions/x86_64-linux/3.2.0/io-event-1.1.7/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /home/jakob/.rvm/gems/ruby-3.2.7/gems/io-event-1.1.7 for inspection.
Results logged to /home/jakob/.rvm/gems/ruby-3.2.7/extensions/x86_64-linux/3.2.0/io-event-1.1.7/gem_make.out

  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/ext/builder.rb:119:in `run'
  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/ext/ext_conf_builder.rb:28:in `build'
  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/ext/builder.rb:187:in `build_extension'
  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/ext/builder.rb:221:in `block in build_extensions'
  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/ext/builder.rb:218:in `each'
  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/ext/builder.rb:218:in `build_extensions'
  /home/jakob/.rvm/rubies/ruby-3.2.7/lib/ruby/3.2.0/rubygems/installer.rb:846:in `build_extensions'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/rubygems_gem_installer.rb:72:in `build_extensions'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/rubygems_gem_installer.rb:28:in `install'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/source/rubygems.rb:200:in `install'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/installer/gem_installer.rb:54:in `install'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/installer/gem_installer.rb:16:in `install_from_spec'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/installer/parallel_installer.rb:167:in `do_install'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/installer/parallel_installer.rb:158:in `block in worker_pool'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/worker.rb:62:in `apply_func'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/worker.rb:57:in `block in process_queue'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/worker.rb:54:in `loop'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/worker.rb:54:in `process_queue'
  /home/jakob/.rvm/gems/ruby-3.2.7/gems/bundler-2.4.7/lib/bundler/worker.rb:90:in `block (2 levels) in create_threads'

An error occurred while installing io-event (1.1.7), and Bundler cannot continue.

In Gemfile:
  async-websocket was resolved to 0.8.0, which depends on
    async-io was resolved to 1.34.3, which depends on
      async was resolved to 2.5.0, which depends on
        io-event

Feels like I have installed every conceivable development tools package there is 🤷
I originally posted on this merged PR, as that was the one I found when I searched for this issue. It seems to describe exactly what I am seeing, however, even though it is merged I get the error 🤔

#137

[ioquatix]

Okay let me investigate.

[olleolleolle]

@jakob-lilliemarck https://unix.stackexchange.com/a/259039

Looks like there is a Fedora invocation that is like Debian build-essentials.

Hope this helps!

[ioquatix]

The fix mentioned in #137 was released in v1.10.1.

The version you are trying to compile is io-event-1.1.7 from 2 years ago. Please try with a more recent version and if the issue persists feel free to re-open the issue.

Also,

/home/jakob/.rvm/rubies/ruby-3.2.7/include/ruby-3.2.0/ruby/internal/scan_args.h:390:30: note: ‘bool’ is defined in header ‘<stdbool.h>’; this is probably fixable by adding ‘#include <stdbool.h>’
/home/jakob/.rvm/rubies/ruby-3.2.7/include/ruby-3.2.0/ruby/internal/scan_args.h:390:43: error: unknown type name ‘bool’

Looks like it's coming from Ruby, not io-event gem. Are you able to provide the full log? Maybe Ruby 3.2 (or extensions) no longer builds correctly on Fedora 42? I know the compiler/tool chain had a significant overhaul.

[stanhu]

Maybe Ruby 3.2 (or extensions) no longer builds correctly on Fedora 42? I know the compiler/tool chain had a significant overhaul.

FYI, the main change is that Fedora 42 updated to GCC 15, which defaults to -std=gnu23 instead of std=gnu17. C23 needs stdbool.h to be included. There is a Ruby bug that was fixed recently in https://bugs.ruby-lang.org/issues/21340 that ensures stdbool.h is always included, even if the configure script erroneously detects that stdbool.h is not available on C23 systems.