From 5404fdf38447adea2fc181664ad3675fea1657e5 Mon Sep 17 00:00:00 2001
From: Robert Connell <robert_connell@apple.com>
Date: Wed, 10 Dec 2025 12:11:49 -0500
Subject: [PATCH] Avoid calling NSString.fileSystemRepresentation from an empty
 string - causes crash on Linux

---
 Sources/TSCBasic/FileSystem.swift | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Sources/TSCBasic/FileSystem.swift b/Sources/TSCBasic/FileSystem.swift
index 69e39e89..8f3e4f7e 100644
--- a/Sources/TSCBasic/FileSystem.swift
+++ b/Sources/TSCBasic/FileSystem.swift
@@ -522,6 +522,10 @@ private struct LocalFileSystem: FileSystem {
 
     var currentWorkingDirectory: AbsolutePath? {
         let cwdStr = FileManager.default.currentDirectoryPath
+        
+        guard !cwdStr.isEmpty else {
+            return nil
+        }
 
 #if _runtime(_ObjC)
         // The ObjC runtime indicates that the underlying Foundation has ObjC