Index: llvm-toolchain-3.3-3.3/clang/lib/Basic/FileManager.cpp
===================================================================
--- llvm-toolchain-3.3-3.3.orig/clang/lib/Basic/FileManager.cpp	2013-01-26 16:29:36.000000000 +0000
+++ llvm-toolchain-3.3-3.3/clang/lib/Basic/FileManager.cpp	2013-08-28 10:29:30.000000000 +0000
@@ -43,6 +43,11 @@
 #if defined(LLVM_ON_UNIX)
 #include <limits.h>
 #endif
+// For GNU Hurd
+#if defined(__GNU__) && !defined(PATH_MAX)
+# define PATH_MAX 4096
+#endif
+
 using namespace clang;
 
 // FIXME: Enhance libsystem to support inode and other fields.
Index: llvm-toolchain-3.3-3.3/lldb/include/lldb/lldb-defines.h
===================================================================
--- llvm-toolchain-3.3-3.3.orig/lldb/include/lldb/lldb-defines.h	2013-08-28 14:14:04.000000000 +0000
+++ llvm-toolchain-3.3-3.3/lldb/include/lldb/lldb-defines.h	2013-08-28 14:15:01.000000000 +0000
@@ -12,6 +12,11 @@
 
 #include "lldb/lldb-types.h"
 
+// For GNU Hurd
+#if defined(__GNU__) && !defined(PATH_MAX)
+# define PATH_MAX 4096
+#endif
+
 #if !defined(UINT32_MAX)
     #define UINT32_MAX 4294967295U
 #endif