try fix

Author: ZuseZ4

src/bootstrap/src/core/build_steps/llvm.rs

@@ -462,11 +462,15 @@ impl Step for Llvm {
             enabled_llvm_runtimes.push("openmp");
             enabled_llvm_runtimes.push("compiler-rt");
 
-            let runtime_targets = vec!["default", "amdgcn-amd-amdhsa", "nvptx64-nvidia-cuda"];
-            cfg.define("LLVM_RUNTIME_TARGETS", runtime_targets.join(";"));
+            //  -DRUNTIMES_CMAKE_ARGS="-DLIBOMPTARGET_PLUGINS_TO_BUILD=amdgpu;nvptx;
+            cfg.define("RUNTIMES_CMAKE_ARGS", "-DLIBOMPTARGET_PLUGINS_TO_BUILD=amdgpu;nvptx");
+            //cfg.define("LLVM_TARGETS_TO_BUILD", "host;AMDGPU;NVPTX");
 
-            cfg.define("RUNTIMES_nvptx64-nvidia-cuda_LLVM_ENABLE_RUNTIMES", "openmp");
-            cfg.define("RUNTIMES_amdgcn-amd-amdhsa_LLVM_ENABLE_RUNTIMES", "openmp");
+            //let runtime_targets = vec!["default", "amdgcn-amd-amdhsa", "nvptx64-nvidia-cuda"];
+            //cfg.define("LLVM_RUNTIME_TARGETS", runtime_targets.join(";"));
+
+            //cfg.define("RUNTIMES_nvptx64-nvidia-cuda_LLVM_ENABLE_RUNTIMES", "openmp");
+            //cfg.define("RUNTIMES_amdgcn-amd-amdhsa_LLVM_ENABLE_RUNTIMES", "openmp");
         }
 
         if !enabled_llvm_projects.is_empty() {