diff -Naur a/configure.ac b/configure.ac
--- a/configure.ac	2017-01-13 13:31:25.250216293 +0100
+++ b/configure.ac	2017-01-13 13:31:55.930217956 +0100
@@ -146,15 +146,6 @@
 	print_BUILD_MANS=no
 fi
 
-git_dir=`git rev-parse --git-dir 2>/dev/null`
-if test -n "$git_dir"; then
-	srcdir=`dirname "$git_dir"`
-	exclude_dir=`pwd | sed "s,^$srcdir,,g"`
-	if ! grep -q "^$exclude_dir" "$git_dir/info/exclude"; then
-		echo "$exclude_dir" >> "$git_dir/info/exclude"
-	fi
-fi
-
 echo \
 "--------------------------------------------------------------------------------
 build configured: