CONFIGURE_OPTS="--disable-install-rdoc" rbenv install 3.2.0 not working

[zdavatz]

1. I am trying to do: CONFIGURE_OPTS="--disable-install-rdoc" rbenv install 3.2.0
2. But this results in:

To follow progress, use 'tail -f /tmp/ruby-build.20230103212239.433590.log' or pass --verbose
Downloading ruby-3.2.0.tar.gz...
-> https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.0.tar.gz
Installing ruby-3.2.0...

BUILD FAILED (Ubuntu 22.04 using ruby-build 20221225-9-g697bcff)

Inspect or clean up the working tree at /tmp/ruby-build.20230103212239.433590.YVjXF6
Results logged to /tmp/ruby-build.20230103212239.433590.log

Last 10 log lines:
	from ./tool/rbinstall.rb:721:in `no_write'
	from ./tool/rbinstall.rb:881:in `install'
	from ./tool/rbinstall.rb:989:in `block in install_default_gem'
	from ./tool/rbinstall.rb:976:in `each'
	from ./tool/rbinstall.rb:976:in `install_default_gem'
	from ./tool/rbinstall.rb:913:in `block in <main>'
	from ./tool/rbinstall.rb:1077:in `block in <main>'
	from ./tool/rbinstall.rb:1074:in `each'
	from ./tool/rbinstall.rb:1074:in `<main>'
make: *** [uncommon.mk:416: do-install-nodoc] Error 1

[hsbt]

You should use --disable-install-doc instead of --disable-install-rdoc.

[jarthod]

For the record and for future people finding this post after having trouble with this option, I recently encountered a similar error while compiling Ruby 3.1.2 on Ubuntu 24.04.1 LTS (recently updated). The log file contained this error message:

cc1: error: unknown pass install-doc specified in '-fdisable'
cc1: error: unknown pass install-doc specified in '-fdisable'

I tried with --disable-install-doc and --disable-install-rdoc but the result was the same. What I guessed is that newer versions of cc or make might be more pendentic and refusing this option where it's not expected (I never had the problem with this syntax using Ubuntu 22.04 and earlier). So I tried passing the options to RUBY_CONFIGURE_OPTS instead of CONFIGURE_OPTS, thinking this might be more specific and not "leaking" as much.

Seems to be working fine for me now with:

$ RUBY_CONFIGURE_OPTS="--disable-install-doc" rbenv install 3.1.2

If you already have option like me, you can separate them by spaces as long as you put quotes outside the variable:

$ RUBY_CONFIGURE_OPTS="--with-jemalloc --disable-install-doc" rbenv install 3.1.2