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authorGuillaume Gomez <guillaume1.gomez@gmail.com>2017-06-30 22:44:47 +0200
committerGitHub <noreply@github.com>2017-06-30 22:44:47 +0200
commit953d679362b4cb7a52fc25bdc5ac41e978a037bf (patch)
treea856fb47b914897ded4fe388b50eae61348fa906 /src/rustllvm/PassWrapper.cpp
parentbbdb21efbf0dfb882dac8899f35db05c4856e654 (diff)
parent4f13da736220fc0d5f3218ac2763617f20b10b89 (diff)
downloadrust-953d679362b4cb7a52fc25bdc5ac41e978a037bf.tar.gz
rust-953d679362b4cb7a52fc25bdc5ac41e978a037bf.zip
Rollup merge of #42985 - venkatagiri:issue_42444, r=Mark-Simulacrum
rustc_llvm: re-run build script when env var LLVM_CONFIG changes

This removes the changes done in #42429 and use the newly introduced `cargo:rerun-if-env-changed` in https://github.com/rust-lang/cargo/pull/4125.
As `LLVM_CONFIG` env var points to the `llvm-config` and changes when it gets configured in `config.toml` or removed from it, we can re-run the build script if this env var changes.

closes #42444

r? @alexcrichton
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