From 56c041b88979bcdc3cf0f995f47bba9393cdfbb3 Mon Sep 17 00:00:00 2001
From: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date: Sun, 24 Sep 2017 13:43:50 -0500
Subject: [PATCH] Work around WSL access(2) EINVAL bug

See Microsoft/BashOnWindows#2522, Microsoft/BashOnWindows#2448
---
 src/path.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/path.cpp b/src/path.cpp
index c8e8b6af7..a5ad76b2d 100644
--- a/src/path.cpp
+++ b/src/path.cpp
@@ -86,6 +86,13 @@ static bool path_get_path_core(const wcstring &cmd, wcstring *out_path,
                 case ENOTDIR: {
                     break;
                 }
+                //WSL has a bug where access(2) can return EINVAL
+                //See https://github.com/Microsoft/BashOnWindows/issues/2522
+                //The only other way EINVAL can happen is if the wrong
+                //mode was specified, but we have X_OK hard-coded above.
+                case EINVAL: {
+                    break;
+                }
                 default: {
                     debug(1, MISSING_COMMAND_ERR_MSG, next_path.c_str());
                     wperror(L"access");