Mercurial > public > mercurial-scm > hg-stable
diff rust/hg-core/build.rs @ 44348:d8d4fa9a7f18
rust-re2: add wrapper for calling Re2 from Rust
This assumes that Re2 is installed following Google's guide. I am not sure
how we want to integrate it in the project, but I think a follow-up patch would
be more appropriate for such work.
As it stands, *not* having Re2 installed results in a compilation error, which
is a problem as it breaks install compatibility. Hence, this is gated behind
a non-default `with-re2` compilation feature.
Differential Revision: https://phab.mercurial-scm.org/D7910
| author | Rapha?l Gom?s <rgomes@octobus.net> |
|---|---|
| date | Thu, 16 Jan 2020 13:34:04 +0100 |
| parents | |
| children | 97c10b157665 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/rust/hg-core/build.rs Thu Jan 16 13:34:04 2020 +0100 @@ -0,0 +1,25 @@ +// build.rs +// +// Copyright 2020 Raphaël Gomès <rgomes@octobus.net> +// +// This software may be used and distributed according to the terms of the +// GNU General Public License version 2 or any later version. + +#[cfg(feature = "with-re2")] +use cc; + +#[cfg(feature = "with-re2")] +fn compile_re2() { + cc::Build::new() + .cpp(true) + .flag("-std=c++11") + .file("src/re2/rust_re2.cpp") + .compile("librustre.a"); + + println!("cargo:rustc-link-lib=re2"); +} + +fn main() { + #[cfg(feature = "with-re2")] + compile_re2(); +}