diff -r 2d362c2a8ed3 -r b4550ad873b3 configure.ac
--- a/configure.ac	Tue Jul 17 21:42:32 2012 +0200
+++ b/configure.ac	Tue Jul 17 22:21:28 2012 +0200
@@ -90,6 +90,10 @@
 # Initial checks that are usually done first (I don't know why, that's
 # just what I seem to experience...)
 #---------------------------------------------------------------------
+AC_ARG_WITH([install],
+    AS_HELP_STRING([--with-install=PATH],
+                   [Specify the full PATH to a BSD-compatible install]),
+    [INSTALL=$withval])
 AC_PROG_INSTALL
 AC_PROG_GREP
 AC_PROG_EGREP