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docs: Update protobuf-src example to avoid unsafe set_var #1310

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docs: Update protobuf-src example to avoid unsafe set_var #1310

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7 changes: 4 additions & 3 deletions prost-build/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -125,11 +125,12 @@
//! ### Compiling `protoc` from source
//!
//! To compile `protoc` from source you can use the `protobuf-src` crate and
//! set the correct environment variables.
//! set the path to `protoc`.
//! ```no_run,ignore, rust
//! std::env::set_var("PROTOC", protobuf_src::protoc());
//! let mut prost_build = prost_build::Config::new();
//! prost_build.protoc_executable(protobuf_src::protoc());
//!
//! // Now compile your proto files via prost-build
//! // Now compile your proto files with the configuration
//! ```
//!
//! [`protobuf-src`]: https://docs.rs/protobuf-src
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