--- a/common/autoconf/basics.m4	Mon Oct 21 10:40:16 2013 +0200
+++ b/common/autoconf/basics.m4	Mon Oct 21 11:59:25 2013 +0200
@@ -502,7 +502,7 @@
     if test "x$IS_GNU_MAKE" = x; then
       AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
     else
-      IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP '3.8[[12346789]]'`
+      IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP '\(3\.8[[12]]\)\|\(4\.\)'`
       if test "x$IS_MODERN_MAKE" = x; then
         AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version 3.81 or later. (it is: $MAKE_VERSION_STRING). Ignoring.])
       else