Add a feature to explicitly enable "std" #145
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bluss
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Aug 30, 2020
If you know you need "std", e.g. relying on default `S = RandomState`, then you can enable this feature to force it on, bypassing target detection. This may help scenarios where `autocfg` fails detection, like issue indexmap-rs#144, but at the very least it will speed up the build script by avoiding extra `rustc` invocations.
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OK, I'm going to release this as 1.5.2. |
carols10cents
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The indexmap crate uses the autocfg crate to do target detection to determine whether `std` is available. Arrow isn't targeting `no_std` environments, so the target detection isn't necessary. This might save some build time. indexmap-rs/indexmap#145
carols10cents
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The indexmap crate uses the autocfg crate to do target detection to determine whether `std` is available. Arrow isn't targeting `no_std` environments, so the target detection isn't necessary. This might save some build time. indexmap-rs/indexmap#145
alamb
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Dec 4, 2021
* Disable default features of chrono; only enable features needed Chrono's default features contain "oldtime", which is deprecated. According to [the docs](https://docs.rs/chrono/0.4.19/chrono/#duration), > new code should disable the oldtime feature and use the > chrono::Duration type instead. The oldtime feature is enabled by > default for backwards compatibility, but future versions of Chrono > are likely to remove the feature entirely. so follow that recommendation by setting default-features to false. And actually, only Arrow needs the "clock" feature, so all the other features can stay off too to minimize the feature set that projects depending on arrow or parquet are forced to enable. * Explicitly enable indexmap's "std" feature The indexmap crate uses the autocfg crate to do target detection to determine whether `std` is available. Arrow isn't targeting `no_std` environments, so the target detection isn't necessary. This might save some build time. indexmap-rs/indexmap#145
alamb
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Dec 9, 2021
* Disable default features of chrono; only enable features needed Chrono's default features contain "oldtime", which is deprecated. According to [the docs](https://docs.rs/chrono/0.4.19/chrono/#duration), > new code should disable the oldtime feature and use the > chrono::Duration type instead. The oldtime feature is enabled by > default for backwards compatibility, but future versions of Chrono > are likely to remove the feature entirely. so follow that recommendation by setting default-features to false. And actually, only Arrow needs the "clock" feature, so all the other features can stay off too to minimize the feature set that projects depending on arrow or parquet are forced to enable. * Explicitly enable indexmap's "std" feature The indexmap crate uses the autocfg crate to do target detection to determine whether `std` is available. Arrow isn't targeting `no_std` environments, so the target detection isn't necessary. This might save some build time. indexmap-rs/indexmap#145
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If you know you need "std", e.g. relying on default
S = RandomState,then you can enable this feature to force it on, bypassing target
detection. This may help scenarios where
autocfgfails detection, likeissue #144, but at the very least it will speed up the build script by
avoiding extra
rustcinvocations.