From deb1cb51d13642a1c6390f2b593ddba74c88dd38 Mon Sep 17 00:00:00 2001
From: Denys Zariaiev <denys.zariaiev@gmail.com>
Date: Sun, 6 Jan 2019 16:28:46 +0100
Subject: [PATCH] Don't build compiler-rt for NVPTX

---
 library/compiler-builtins/build.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/library/compiler-builtins/build.rs b/library/compiler-builtins/build.rs
index 752bba1343f6..b094734539e3 100644
--- a/library/compiler-builtins/build.rs
+++ b/library/compiler-builtins/build.rs
@@ -36,8 +36,8 @@ fn main() {
     // build anything and we rely on the upstream implementation of compiler-rt
     // functions
     if !cfg!(feature = "mangled-names") && cfg!(feature = "c") {
-        // no C compiler for wasm
-        if !target.contains("wasm32") {
+        // Don't use C compiler for bitcode-only wasm and nvptx
+        if !target.contains("wasm32") && !target.contains("nvptx") {
             #[cfg(feature = "c")]
             c::compile(&llvm_target);
             println!("cargo:rustc-cfg=use_c");