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extend std caveats description #157

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Aug 13, 2017
Merged

extend std caveats description #157

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a8c4ed7
extend std caveats description
RalfJung Aug 5, 2017
caaca4c
building without jemalloc is not currently possible
RalfJung Aug 10, 2017
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7 changes: 5 additions & 2 deletions README.md
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Expand Up @@ -318,8 +318,11 @@ stage = 2
because `std` and other standard crates depend on unstable features so it's
not possible to build the sysroot with stable or beta.

- To build `std` *without* the "jemalloc" feature, apply the patch
in [rust-lang/rust#37975](https://github.com/rust-lang/rust/pull/37975).
- `std` is built as rlib *and* dylib. The dylib needs a panic library and an
allocator. If you do not specify the `panic-unwind` feature, you have to set
`panic = "abort"` in `Cargo.toml`. Currently, it is not possible to build
without the `jemalloc` feature. For some further information on this issue,
see [rust-lang/rust#43637](https://github.com/rust-lang/rust/issues/43637#issuecomment-320463578).

- When using compiler plugins (e.g. `serde_derive`) the target triple must be
provided even when compiling for the host platform due to the way cargo
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