=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Installing for ruby18-pg-0.15.0
=> Generating pre-install file lists
=> Installing gem into installation root
ERROR:  While executing gem ... (Errno::ENOENT)
    No such file or directory - /usr/pkg/lib/ruby/gems/1.8/build_info/pg-0.15.0.info
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/installer.rb:785:in `initialize'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/installer.rb:785:in `open'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/installer.rb:785:in `write_build_info_file'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/installer.rb:222:in `install'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/dependency_installer.rb:380:in `install'
	/usr/pkg/lib/ruby/1.8/fileutils.rb:219:in `each_with_index'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/dependency_installer.rb:339:in `each'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/dependency_installer.rb:339:in `each_with_index'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/dependency_installer.rb:339:in `install'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/commands/install_command.rb:166:in `execute'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/commands/install_command.rb:158:in `each'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/commands/install_command.rb:158:in `execute'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/command.rb:305:in `invoke_with_build_args'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/command_manager.rb:170:in `process_args'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/command_manager.rb:130:in `run'
	/usr/pkg/lib/ruby/vendor_ruby/1.8/rubygems/gem_runner.rb:60:in `run'
	/usr/pkg/bin/gem18:21
Building native extensions with: '--build-args --with-pgsql-include-dir=/usr/pkg/include/postgresql --with-pgsql-lib-dir=/usr/pkg/lib'
This could take a while...
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/databases/ruby-pg
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/databases/ruby-pg