From 3521ae95805fca90993847c40f5309a4f1dfd235 Mon Sep 17 00:00:00 2001
From: Manuel Klimek <klimek@google.com>
Date: Mon, 9 Apr 2012 18:08:23 +0000
Subject: [PATCH] Fixes a fix to finding the current directory: We currently
 want to look whether PWD is available - if PWD is available it will get us
 the non-resolved current path, while fs::current_path will resolve symlinks.
 The long term fix is to not rely on that behavior any more.

llvm-svn: 154330
---
 clang/lib/Tooling/Tooling.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Tooling/Tooling.cpp b/clang/lib/Tooling/Tooling.cpp
index 4fa98aa2bfee..fa2374f5e30d 100644
--- a/clang/lib/Tooling/Tooling.cpp
+++ b/clang/lib/Tooling/Tooling.cpp
@@ -237,7 +237,10 @@ ClangTool::ClangTool(const CompilationDatabase &Compilations,
                      ArrayRef<std::string> SourcePaths)
     : Files((FileSystemOptions())) {
   llvm::SmallString<1024> BaseDirectory;
-  llvm::sys::fs::current_path(BaseDirectory);
+  if (const char *PWD = ::getenv("PWD"))
+    BaseDirectory = PWD;
+  else
+    llvm::sys::fs::current_path(BaseDirectory);
   for (unsigned I = 0, E = SourcePaths.size(); I != E; ++I) {
     llvm::SmallString<1024> File(getAbsolutePath(
         SourcePaths[I], BaseDirectory));