# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/openshadinglanguage/hotfix-llvm-vfs.patch
# Copyright (C) 2026 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

oslc: /usr/src/t2-src/src.clang.260319.214406.551988/llvm-project-22.1.1.src/clang/lib/Frontend/CompilerInstance.cpp:387:
void clang::CompilerInstance::createFileManager(): Assertion `VFS && "CompilerInstance needs a VFS for creating FileManager"' failed.         

--- ./src/liboslcomp/oslcomp.cpp.vanilla	2026-03-19 23:09:02.594607376 +0100
+++ ./src/liboslcomp/oslcomp.cpp	2026-03-19 23:22:22.438430445 +0100
@@ -200,6 +200,10 @@
 
     inst.setTarget(target);
 
+#if OSL_LLVM_VERSION >= 220
+    inst.setVirtualFileSystem(llvm::vfs::getRealFileSystem());
+#endif
+
     inst.createFileManager();
 #if OSL_LLVM_VERSION >= 220
     inst.createSourceManager();