secp256k1-zkp-sys

This crate provides Rust definitions for the FFI structures and methods.

Vendoring

The default build process is to build using the vendored libsecp256k1-zkp sources in the depend folder. These sources are prefixed with a special rust-secp256k1-zkp-sys-specific prefix rustsecp256k1zkp_v1_2_3_.

This prefix ensures that no symbol collision can happen:

• when a Rust project has two different versions of rust-secp256k1-zkp in its depepdency tree, or
• when rust-secp256k1-zkp is used for building a static library in a context where existing libsecp256k1-zkp symbols are already linked.

To update the vendored sources, use the vendor-libsecp.sh script:

$ ./vendor-libsecp.sh <rev>

Where <rev> is the git revision of libsecp256k1 to checkout. If you do not specify a revision, the script will simply clone the repo and use whatever revision the default branch is pointing to.

Linking to external symbols

For the more exotic use cases, this crate can be used with existing libsecp256k1-zkp symbols by using the external-symbols feature. How to setup rustc to link against those existing symbols is left as an exercise to the reader.

Minimum Supported Rust Version

This library should always compile with any combination of features on Rust 1.56.1.