CODEWITHSUNDEEP
rustrust-cargocompiler-options
rodrigocfd
rodrigocfd

Reputation: 8068

Does Rust/Cargo link statically to MSVCRT?

In Windows, when compiling C++, I can specify /MT compiler option to use a static version of the runtime library, ie. to not link dynamically to MSVCRT.

How does Rust/Cargo behave in this regard, since there is no such option? Does it link static or dynamically?

Upvotes: 4

Views: 2638

Answers (1)

Hadus
Hadus

Reputation: 1674

You can specify it I think. Here is the RFC that enabled it: https://github.com/rust-lang/rfcs/blob/master/text/1721-crt-static.md

There is a page that mentions it in the rustc book.

This also supports the feature +crt-static and -crt-static to control static C runtime linkage.

Make a file called .cargo/config.toml and inside it you can specify the rustflags

https://doc.rust-lang.org/cargo/reference/config.html

Inside config.toml

...

[build]
rustflags = ["-C", "target-feature=+crt-static"]
...

I have not tried this yet though but I imagine it should work.

Upvotes: 8

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