From 934b23fa52dd404d29970cd083d411f5e7b52263 Mon Sep 17 00:00:00 2001
From: Nathan Schulte <nmschulte@gmail.com>
Date: Mon, 9 Jan 2017 18:43:38 -0600
Subject: [PATCH] fix auto exclude in-work-tree build dirs

updates: -- configure: add build directory to gitignore #2543 -- https://github.com/i3/i3/pull/2543
---
 configure.ac | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 9d4b2f40..4f67d5ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -154,8 +154,9 @@ else
 	print_BUILD_MANS=no
 fi
 
-git_dir=`git rev-parse --git-dir 2>/dev/null`
-if test -n "$git_dir"; then
+in_git_worktree=`git rev-parse --is-inside-work-tree 2>/dev/null`
+if "$in_git_worktree" == "true"; then
+	git_dir=`git rev-parse --git-dir 2>/dev/null`
 	srcdir=`dirname "$git_dir"`
 	exclude_dir=`pwd | sed "s,^$srcdir,,g"`
 	if ! grep -q "^$exclude_dir" "$git_dir/info/exclude"; then
-- 
2.39.5