From 22a088b8aa22ab59420bae4fbcaa0191e4a51fdd Mon Sep 17 00:00:00 2001
From: Brian Anderson <banderson@mozilla.com>
Date: Thu, 22 Dec 2016 22:00:21 +0000
Subject: [PATCH] grrr

---
 configure | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure b/configure
index e495c0d3abdca..de74f37e49b76 100755
--- a/configure
+++ b/configure
@@ -720,6 +720,10 @@ then
     exit 0
 fi
 
+# Unstuck the LLVM submodule
+rm -f "${CFG_SRC_DIR}/.git/modules/src/llvm/index.lock"
+exit 1
+
 # Validate Options
 if [ -z "$CFG_DISABLE_OPTION_CHECKING" ]
 then