From 0c2f59c2a3bbeb2a361050e3600cacb995baa5e4 Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Tue, 28 Jun 2016 10:27:06 +0200
Subject: [PATCH] Only install git hook if cloned from git. For source
 tarballs, the `.git/hooks` folder does not exist, so an error is shown when
 running `autogen.sh`. With this change, the hook is not installed in such
 cases.

---
 autogen.sh | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/autogen.sh b/autogen.sh
index 3d90e9b7..ae6e6608 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,9 +1,11 @@
 #!/bin/sh
 
-# the pre-commit hook performs various formatting checks
-if test ! \( -x .git/hooks/pre-commit -a -L .git/hooks/pre-commit \); then \
-    rm -f .git/hooks/pre-commit; \
-    ln -s ../../src/hooks/pre-commit.hook .git/hooks/pre-commit; \
+if [ -d ".git/hooks" ]; then
+    # the pre-commit hook performs various formatting checks
+    if test ! \( -x .git/hooks/pre-commit -a -L .git/hooks/pre-commit \); then \
+        rm -f .git/hooks/pre-commit; \
+        ln -s ../../src/hooks/pre-commit.hook .git/hooks/pre-commit; \
+    fi
 fi
 
 if [ -x "`which autoreconf 2>/dev/null`" ] ; then