1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/varisat/build.rs b/vendor/varisat/build.rs
new file mode 100644
index 000000000..f709e9045
--- /dev/null
+++ b/vendor/varisat/build.rs
@@ -0,0 +1,48 @@
+use anyhow::{ensure, Error};
+use std::{env, process::Command, str::from_utf8};
+
+fn have_drat_trim() -> Result<(), Error> {
+    println!("rerun-if-env-changed=VARISAT_HAVE_DRAT_TRIM");
+    if env::var("VARISAT_HAVE_DRAT_TRIM").is_ok() {
+        return Ok(());
+    }
+
+    let output = Command::new("drat-trim").output()?;
+    let stdout = from_utf8(&output.stdout)?;
+
+    ensure!(
+        stdout.contains("force binary proof parse mode"),
+        "no force binary proof option found"
+    );
+
+    Ok(())
+}
+
+fn have_rate() -> Result<(), Error> {
+    println!("rerun-if-env-changed=VARISAT_HAVE_RATE");
+    if env::var("VARISAT_HAVE_RATE").is_ok() {
+        return Ok(());
+    }
+
+    let _ = Command::new("rate").arg("--version").output()?;
+
+    Ok(())
+}
+
+fn main() {
+    match have_drat_trim() {
+        Ok(_) => println!("cargo:rustc-cfg=test_drat_trim"),
+        Err(err) => println!(
+            "cargo:warning=drat-trim proof checker not found, some tests will be disabled: {}",
+            err
+        ),
+    }
+
+    match have_rate() {
+        Ok(_) => println!("cargo:rustc-cfg=test_rate"),
+        Err(err) => println!(
+            "cargo:warning=rate proof checker not found, some tests will be disabled: {}",
+            err
+        ),
+    }
+}