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rust-regex: prevent nonsensical `.*.*` pattern from happening...
rust-regex: prevent nonsensical `.*.*` pattern from happening Differential Revision: https://phab.mercurial-scm.org/D8507

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build.rs
61 lines | 1.5 KiB | application/rls-services+xml | RustLexer
// 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;
/// Uses either the system Re2 install as a dynamic library or the provided
/// build as a static library
#[cfg(feature = "with-re2")]
fn compile_re2() {
use cc;
use std::path::Path;
use std::process::exit;
let msg = r"HG_RE2_PATH must be one of `system|<path to build source clone of Re2>`";
let re2 = match std::env::var_os("HG_RE2_PATH") {
None => {
eprintln!("{}", msg);
exit(1)
}
Some(v) => {
if v == "system" {
None
} else {
Some(v)
}
}
};
let mut options = cc::Build::new();
options
.cpp(true)
.flag("-std=c++11")
.file("src/re2/rust_re2.cpp");
if let Some(ref source) = re2 {
options.include(Path::new(source));
};
options.compile("librustre.a");
if let Some(ref source) = &re2 {
// Link the local source statically
println!(
"cargo:rustc-link-search=native={}",
Path::new(source).join(Path::new("obj")).display()
);
println!("cargo:rustc-link-lib=static=re2");
} else {
println!("cargo:rustc-link-lib=re2");
}
}
fn main() {
#[cfg(feature = "with-re2")]
compile_re2();
}