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3. envvars

Environment variables defined in process.env allow you to configure additional Yarn features.

CHILD_CONCURRENCY

process.env.CHILD_CONCURRENCY=#number#

Controls the number of child processes run parallely to build node modules.

Setting this number to 1 will cause the node modules to be built sequentially which can avoid linker errors on windows with node-gyp.

© 2016–2017 Yarn Contributors
Licensed under the BSD License.
https://yarnpkg.com/en/docs/envvars