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Add the ability to pass environment variables to rustc #315

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Add the ability to pass environment variables to rustc #315

wants to merge 1 commit into from

Commits on May 8, 2020

  1. Add the ability to pass environment variables to rustc 

    This patch enables callers to supply an additional
parameter to rust targets (such as "rust_library", "rust_binary",
etc):

  rustc_env = [
    "KEY=VALUE",
  ]

This parameter parses the key/value pairs, and appends them
to the list of environment variables supplied to rustc.

This parameter emulated the impact of "cargo:rustc-env=VAR=VALUE"
lines, which are common in build scripts.
    @smklein
    smklein committed May 8, 2020
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