From ee968a197e6cda5cd57f12b923067a2af80000f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= <berykubik@gmail.com>
Date: Thu, 26 Feb 2026 21:15:10 +0100
Subject: [PATCH] Improve error when no solver feature is enabled

---
 crates/tako/src/internal/worker/resources/solver.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/crates/tako/src/internal/worker/resources/solver.rs b/crates/tako/src/internal/worker/resources/solver.rs
index c2596bb39..86817ae76 100644
--- a/crates/tako/src/internal/worker/resources/solver.rs
+++ b/crates/tako/src/internal/worker/resources/solver.rs
@@ -24,4 +24,10 @@ pub fn create_solver() -> impl LpSolver {
         use super::solver_microlp::MicrolpSolver;
         MicrolpSolver::new()
     }
+    #[cfg(not(any(feature = "highs", feature = "microlp")))]
+    {
+        compile_error!(
+            "You have to enable either the `highs` or the `microlp` feature using `cargo build ... --features <highs/microlp>`"
+        )
+    }
 }