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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/camino/build.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/camino/build.rs')
-rw-r--r--vendor/camino/build.rs40
1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/camino/build.rs b/vendor/camino/build.rs
new file mode 100644
index 000000000..bc3e4480d
--- /dev/null
+++ b/vendor/camino/build.rs
@@ -0,0 +1,40 @@
+// Copyright (c) The camino Contributors
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+//! Adapted from
+//! https://github.com/dtolnay/syn/blob/a54fb0098c6679f1312113ae2eec0305c51c7390/build.rs.
+
+use std::{env, process::Command, str};
+
+// The rustc-cfg strings below are *not* public API. Please let us know by
+// opening a GitHub issue if your build environment requires some way to enable
+// these cfgs other than by executing our build script.
+fn main() {
+ let compiler = match rustc_version() {
+ Some(compiler) => compiler,
+ None => return,
+ };
+
+ // NOTE:
+ // Adding a new cfg gated by Rust version MUST be accompanied by an addition to the matrix in
+ // .github/workflows/ci.yml.
+ if compiler.minor >= 44 {
+ println!("cargo:rustc-cfg=path_buf_capacity");
+ }
+}
+
+struct Compiler {
+ minor: u32,
+}
+
+fn rustc_version() -> Option<Compiler> {
+ let rustc = env::var_os("RUSTC")?;
+ let output = Command::new(rustc).arg("--version").output().ok()?;
+ let version = str::from_utf8(&output.stdout).ok()?;
+ let mut pieces = version.split('.');
+ if pieces.next() != Some("rustc 1") {
+ return None;
+ }
+ let minor = pieces.next()?.parse().ok()?;
+ Some(Compiler { minor })
+}