--- a/Makefile.am	2015-11-18 18:01:02.598535720 +0100
+++ b/Makefile.am	2015-11-18 18:13:52.556536170 +0100
@@ -34,7 +34,7 @@
 
 ACLOCAL_AMFLAGS = -I m4
 
-AM_CPPFLAGS = $(BOOST_CPPFLAGS) $(glibmm_CFLAGS) $(gdkmm_CFLAGS) $(gerbv_CFLAGS)
+AM_CPPFLAGS = $(BOOST_CPPFLAGS) $(glibmm_CFLAGS) $(gdkmm_CFLAGS) $(gerbv_CFLAGS) -std=c++11
 AM_LDFLAGS = $(BOOST_PROGRAM_OPTIONS_LDFLAGS)
 LIBS = $(glibmm_LIBS) $(gdkmm_LIBS) $(gerbv_LIBS) $(BOOST_PROGRAM_OPTIONS_LIBS) $(BOOST_REGEX_LIBS)