From 5e37fc0746a75ed319fc57ae62d8cc966382c592 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sun, 16 Feb 2020 01:45:48 -0500
Subject: [PATCH] more user-friendly error message for some clang diagnostics

See #4455
---
 src/error.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/error.cpp b/src/error.cpp
index 08575d15ec..871b6b9e35 100644
--- a/src/error.cpp
+++ b/src/error.cpp
@@ -64,7 +64,7 @@ const char *err_str(Error err) {
         case ErrorInvalidCpuFeatures: return "invalid CPU features";
         case ErrorInvalidLlvmCpuFeaturesFormat: return "invalid LLVM CPU features format";
         case ErrorUnknownApplicationBinaryInterface: return "unknown application binary interface";
-        case ErrorASTUnitFailure: return "ASTUnit failure";
+        case ErrorASTUnitFailure: return "compiler bug: clang encountered a compile error, but the libclang API does not expose the error. See https://github.com/ziglang/zig/issues/4455 for more details";
     }
     return "(invalid error)";
 }