From 7b652d341e9a476658af8a9186972ce73ec38c3c Mon Sep 17 00:00:00 2001
From: Niels Sascha Reedijk <niels.reedijk@gmail.com>
Date: Sat, 19 Sep 2020 09:17:53 +0100
Subject: [PATCH] Haiku: explicitly set CMAKE_SYSTEM_NAME when cross-compiling

This resolves issues where the cross-build of LLVM fails because it tries to
link to the host's system libraries instead of the target's system libraries.
---
 src/bootstrap/native.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bootstrap/native.rs b/src/bootstrap/native.rs
index 6bba00ee85e14..37d6fab070b8e 100644
--- a/src/bootstrap/native.rs
+++ b/src/bootstrap/native.rs
@@ -378,6 +378,8 @@ fn configure_cmake(
             cfg.define("CMAKE_SYSTEM_NAME", "FreeBSD");
         } else if target.contains("windows") {
             cfg.define("CMAKE_SYSTEM_NAME", "Windows");
+        } else if target.contains("haiku") {
+            cfg.define("CMAKE_SYSTEM_NAME", "Haiku");
         }
         // When cross-compiling we should also set CMAKE_SYSTEM_VERSION, but in
         // that case like CMake we cannot easily determine system version either.