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KOBAYASHI Shuji 81c2108819 Revert MRUBY_TARGET mechanism; ref #5096
* In explanation of mruby, the expression `build_config.rb` is frequently
  used including official documents, so I think that it will not make sense
  if the file is no longer used.
* The `MRUBY_TARGET` mechanism seems to have little improvement, so I don't
  think it should be changed to avoid unnecessary confusion.
* `MRUBY_TARGET` and `MRuby.targets` represent somewhat different things,
  so using the same term "target" is a bit confusing.

The mechanism that can be written short when using a file under
`build_config` (renamed from `target`) directory remains
(`build_config/${MRUBY_CONFIG}.rb` is used if the path specified
in `MRUBY_CONFIG` doesn't exist).
2020-10-19 15:03:22 +09:00

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Ruby

MRuby::Build.new('bench') do |conf|
# Gets set by the VS command prompts.
if ENV['VisualStudioVersion'] || ENV['VSINSTALLDIR']
toolchain :visualcpp
else
toolchain :gcc
conf.cc.flags << '-O3'
end
conf.gembox 'default'
end