Pin childprocess on Ruby 2.2

Borrowed from rspec/rspec-support@a816ca1 Failure example https://github.com/rspec/rspec-mocks/actions/runs/3400302848/jobs/5654635850
rspec · Nov 6, 2022 · e14f4a1 · e14f4a1
1 parent 1277590
commit e14f4a1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Gemfile b/Gemfile
@@ -50,6 +50,10 @@ if RUBY_VERSION <= '2.3.0' && !!(RbConfig::CONFIG['host_os'] =~ /cygwin|mswin|mi
   gem "childprocess", "< 1.0.0"
 elsif RUBY_VERSION < '2.0.0'
   gem "childprocess", "< 1.0.0"
+elsif RUBY_VERSION < '2.3.0'
+  gem "childprocess", "< 3.0.0"
+else
+  gem "childprocess", ">= 3.0.0"
 end
 
 if RUBY_VERSION < '1.9.2'