build: Remove unnecessary cargo:rerun-if-env-changed annotations
#74643
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Add a FIXME to build scripts in profiler_builtins
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(rust_highfive has picked a reviewer for you, use r? to override) |
petrochenkov
commented
Jul 22, 2020
| @@ -28,6 +30,14 @@ macro_rules! t { | |||
| }; | |||
| } | |||
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| /// Reads an environment variable and adds it to dependencies. | |||
| /// Supposed to be used for all variables except those set for build scripts by cargo | |||
| /// https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-sets-for-build-scripts | |||
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https://doc.rust-lang.org/cargo/reference/build-scripts.html#rerun-if-env-changed says this.
Apparently, if any of the "build script input" env vars changes, then cargo will rerun the script automatically regardless of any other rerun-if directives?
petrochenkov
commented
Jul 22, 2020
| @@ -548,7 +548,7 @@ impl Session { | |||
| self.opts.debugging_opts.asm_comments | |||
| } | |||
| pub fn verify_llvm_ir(&self) -> bool { | |||
| self.opts.debugging_opts.verify_llvm_ir || cfg!(always_verify_llvm_ir) | |||
| self.opts.debugging_opts.verify_llvm_ir || option_env!("RUSTC_VERIFY_LLVM_IR").is_some() | |||
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The cfg was set in librustc_middle/build.rs.
Looks like nobody noticed that it stopped working.
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Thanks! @bors r+ |
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📌 Commit 7be36a8 has been approved by |
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🌲 The tree is currently closed for pull requests below priority 5, this pull request will be tested once the tree is reopened |
Manishearth
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Jul 22, 2020
…ulacrum build: Remove unnecessary `cargo:rerun-if-env-changed` annotations ... and a couple of related cleanups. rustc and cargo now track the majority of env var dependencies automatically (rust-lang/cargo#8421), so the annotations are no longer necessary.
Manishearth
added a commit
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Jul 22, 2020
…ulacrum build: Remove unnecessary `cargo:rerun-if-env-changed` annotations ... and a couple of related cleanups. rustc and cargo now track the majority of env var dependencies automatically (rust-lang/cargo#8421), so the annotations are no longer necessary.
Manishearth
added a commit
to Manishearth/rust
that referenced
this pull request
Jul 22, 2020
…ulacrum build: Remove unnecessary `cargo:rerun-if-env-changed` annotations ... and a couple of related cleanups. rustc and cargo now track the majority of env var dependencies automatically (rust-lang/cargo#8421), so the annotations are no longer necessary.
bors
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Jul 23, 2020
…arth Rollup of 9 pull requests Successful merges: - rust-lang#73783 (Detect when `'static` obligation might come from an `impl`) - rust-lang#73868 (Advertise correct stable version for const control flow) - rust-lang#74460 (rustdoc: Always warn when linking from public to private items) - rust-lang#74538 (Guard against non-monomorphized type_id intrinsic call) - rust-lang#74541 (Add the aarch64-apple-darwin target ) - rust-lang#74600 (Enable perf try builder) - rust-lang#74618 (Do not ICE on assoc type with bad placeholder) - rust-lang#74631 (rustc_target: Add a target spec option for disabling `--eh-frame-hdr`) - rust-lang#74643 (build: Remove unnecessary `cargo:rerun-if-env-changed` annotations) Failed merges: r? @ghost
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... and a couple of related cleanups.
rustc and cargo now track the majority of env var dependencies automatically (rust-lang/cargo#8421), so the annotations are no longer necessary.