cargo: Use CARGO_ENCODED_RUSTFLAGS to support spaces in environment paths
#186
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| @@ -465,7 +465,10 @@ impl CargoBuild { | |||
| } | |||
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| pub fn exec(mut self) -> Result<()> { | |||
| self.cargo_target_env("RUSTFLAGS", &self.rust_flags.clone()); | |||
| // TODO: There's no target-triple specific ENCODED_RUSTFLAGS: https://github.com/rust-lang/cargo/issues/14398 | |||
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It's not clear to me why we need a target triple specific version of this flag, can't we use the regular version?
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To make sure that none of these RUSTFLAGS (and C(XX)FLAGS) apply to binaries built for the host, i.e. build.rs. There used to be some additional complexity with the existence of target-applies-to-host, but I can't remember the details for it.
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Blocked on rust-lang/cargo#14398
For #128