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On Tuesday, May 14, 2019 9:15:52 AM PDT Andrew Savchenko wrote: |
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> Hi all! |
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> |
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> Looks like rustc supports target CPU and optlevel options, e.g. |
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> rustc -C target-cpu=skylake -C opt-level=3 |
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> as well as more fine-grade optimizations. |
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> |
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> But I see no way to specify them when building rust software. |
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> Am I missing something? Is there any reason for not providing |
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> something like RUSTFLAGS? |
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> |
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> Best regards, |
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> Andrew Savchenko |
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Hi, |
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|
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I have this in make.conf for quite some time. |
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RUSTFLAGS="-Ctarget-cpu=native -v" |
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|
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it just works(tm) as you expect it to. |
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I remember earlier rustc/cargo were failing if same options specified twice, |
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for example once in toml files and second time via RUSTFLAGS, but I can't |
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reproduce anymore. |
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Maybe it got smarter and RUSTFLAGS actually override whatever is set in toml |
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files. |
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|
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|
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- |
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Regards, Georgy |
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