All—
I’ve installed Ruby with sudo port install ruby31 and want to install middleman
<https://middlemanapp.com/> with sudo gem install middleman. This gives an
error that header files for building gems are not present in
/opt/local/lib/ruby3.1/include:
Building native extensions. This could take a while...
ERROR: Error installing middleman:
ERROR: Failed to build gem native extension.
current directory:
/opt/local/lib/ruby3.1/gems/3.1.0/gems/ffi-1.15.4/ext/ffi_c
/opt/local/bin/ruby3.1 -I /opt/local/lib/ruby3.1/3.1.0 -r
./siteconf20220102-15848-cuiju7.rb extconf.rb
mkmf.rb can't find header files for ruby at
/opt/local/lib/ruby3.1/include/ruby.h
You might have to install separate package for the ruby development
environment, ruby-dev or ruby-devel for example.
extconf failed, exit code 1
Gem files will remain installed in
/opt/local/lib/ruby3.1/gems/3.1.0/gems/ffi-1.15.4 for inspection.
Results logged to
/opt/local/lib/ruby3.1/gems/3.1.0/extensions/arm64-darwin-21/3.1.0/ffi-1.15.4/gem_make.out
What MacPorts package(s) do I need for installing these headers? I’ve had no
luck searching on https://ports.macports.org/ <https://ports.macports.org/> for
ruby.h
Cheers,
Andreas
