diff --git a/buildtypes/configure.sh.in b/buildtypes/configure.sh.in
index 3821f72..b66043b 100644
--- a/buildtypes/configure.sh.in
+++ b/buildtypes/configure.sh.in
@@ -22,7 +22,13 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-if [ ! -x ${S}/configure ] ; then
+if [ ! -x "${S}/configure" ] ; then
+    return
+fi
+
+if ! egrep -qi "generated by.*autoconf" "${S}/configure" ; then
+    print_warning "GNU autotools detection failed."
+    print_warning "${S}/configure: does not seem to be generated by GNU autotools."
     return
 fi