Fix x86-linux Dockerfile

[stanhu]

ghcr.io/rake-compiler/rake-compiler-dock-image:1.9.1-mri-x86-linux is now based on an Ubuntu 20.04 image, so we can avoid the CentOS-changes and do what we do with the x86_64-linux Dockerfile.

[stanhu]

oxi-test builds now, but I see:

cp rb-sys/crates/rb-sys/Cargo.toml tmp/x86-linux/stage/rb-sys/crates/rb-sys/Cargo.toml
mkdir -p tmp/x86-linux/stage/rb-sys/examples/rust_reverse/ext/rust_reverse
cp rb-sys/examples/rust_reverse/ext/rust_reverse/Cargo.toml tmp/x86-linux/stage/rb-sys/examples/rust_reverse/ext/rust_reverse/Cargo.toml
mkdir -p tmp/x86-linux/stage/rb-sys/fuzz
cp rb-sys/fuzz/Cargo.lock tmp/x86-linux/stage/rb-sys/fuzz/Cargo.lock
cp rb-sys/fuzz/Cargo.toml tmp/x86-linux/stage/rb-sys/fuzz/Cargo.toml
cp tmp/x86-linux/oxi-test/3.4.1/oxi_test.so tmp/x86-linux/stage/lib/oxi/test/oxi_test.so
Removing unneeded dependencies from native gemspec
Removing source files from native gemspec
mkdir -p pkg
mkdir -p pkg/oxi-test-0.1.0-x86-linux
mkdir -p pkg
rm -f pkg/oxi-test-0.1.0-x86-linux/LICENSE.txt
ln tmp/x86-linux/stage/LICENSE.txt pkg/oxi-test-0.1.0-x86-linux/LICENSE.txt
rm -f pkg/oxi-test-0.1.0-x86-linux/README.md
ln tmp/x86-linux/stage/README.md pkg/oxi-test-0.1.0-x86-linux/README.md
mkdir -p pkg/oxi-test-0.1.0-x86-linux/lib/oxi
rm -f pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test.rb
ln tmp/x86-linux/stage/lib/oxi/test.rb pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test.rb
mkdir -p pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test
rm -f pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test/oxi_test.so
ln tmp/x86-linux/stage/lib/oxi/test/oxi_test.so pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test/oxi_test.so
rm -f pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test/version.rb
ln tmp/x86-linux/stage/lib/oxi/test/version.rb pkg/oxi-test-0.1.0-x86-linux/lib/oxi/test/version.rb
cd tmp/x86_64-linux/oxi-test/3.4.1
/usr/local/rbenv/versions/3.4.1/bin/ruby -I. ../../../../ext/extconf.rb
/usr/local/rbenv/versions/3.4.1/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require': cannot load such file -- /usr/local/rake-compiler/ruby/x86_64-linux-gnu/ruby-3.4.1/lib/ruby/3.4.0/x86_64-linux-gnu/rbconfig.rb (LoadError)
	from /usr/local/rbenv/versions/3.4.1/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
	from /home/stanhu/github/rb-sys/oxi-test/tmp/x86_64-linux/oxi-test/3.4.1/fake.rb:30:in '<top (required)>'
	from /usr/local/rbenv/versions/3.4.1/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
	from /usr/local/rbenv/versions/3.4.1/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
	from /home/stanhu/github/rb-sys/oxi-test/tmp/x86_64-linux/oxi-test/3.4.1/mkmf.rb:6:in '<top (required)>'
	from /usr/local/rbenv/versions/3.4.1/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
	from /usr/local/rbenv/versions/3.4.1/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
	from ../../../../ext/extconf.rb:3:in '<main>'

Note Ruby seems to be using x86_64, but i686-linux-gnu is acutally installed:

root@6511ee85e30e:/# ls /usr/local/rake-compiler/ruby/i686-linux-gnu/
ruby-2.4.10  ruby-2.5.9  ruby-2.6.10  ruby-2.7.8  ruby-3.0.7  ruby-3.1.6  ruby-3.2.6  ruby-3.3.7  ruby-3.4.1

[ianks]

Looks reasonable to me, let’s see what CI says

[ianks]

🤞 https://github.com/oxidize-rb/rb-sys/actions/runs/13022418749