sharkdp/fd

Set use-jemalloc conditionally instead of ignoring it for some targets

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#1,822 创建于 2025年10月31日

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 (2 评论) (0 反应) (0 负责人)Rust (42,984 star) (1,059 fork)batch import
feature-requesthelp wantedpackaging/tooling

描述

src/main.rs and Cargo.toml include a complex expression to not use jemalloc on some targets even when use-jemalloc has been set explicitly. As far as I can tell most of the cases where jemalloc is disabled is due to build failures. Since cargo can be configured to use a system provided jemalloc these build failures can be avoided on some targets (in my case on 32-bit musl and riscv64). Therefor it would be nice to conditionally have use-jemalloc in the default features instead of force disabling it on some targets.

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技术栈
rust
领域
build system
议题类型
feature
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前置要求
RustCargo featuresconditional compilation
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70
研究方向
Review src/main.rs and Cargo.toml to understand the current conditional disabling of jemalloc. Investigate how to define `use jemalloc` as a default feature only for targets where it builds successfully, perhaps using cfg attributes. Check existing Cargo.toml for similar conditional dependencies.