diff --git a/configure.ac b/configure.ac
index ba47db9..1ff4a3b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -63,6 +63,7 @@ AC_PROG_CXX
 AC_CHECK_CXXFLAG([Wall])
 AC_CHECK_CXXFLAG([pedantic])
 AC_CHECK_CXXFLAG([Wextra])
+AC_CHECK_CXXFLAG([Wno-long-long])
 AC_CHECK_LDFLAG([--as-needed])
 
 AC_PROG_INSTALL
diff --git a/src/Makefile.am b/src/Makefile.am
index 5e9f4e1..1dc5b67 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -38,7 +38,8 @@ sgpemv2_CPPFLAGS = -I@top_srcdir@ \
 		-DMODDIR="\"$(moddir)\"" \
 		-DLOCALEDIR="\"$(localedir)\"" \
 		$(CAIRO_CFLAGS) \
-		$(GTKMM_CFLAGS)
+		$(GTKMM_CFLAGS) \
+		$(PYTHON_CPPFLAGS)
 sgpemv2_LDFLAGS = -L@builddir@/backend \
 		  -L@builddir@/pyloader \
 		  $(LT_LDFLAGS)
diff --git a/src/backend/Makefile.am b/src/backend/Makefile.am
index a68b54e..5d27ea9 100644
--- a/src/backend/Makefile.am
+++ b/src/backend/Makefile.am
@@ -60,7 +60,6 @@ libbackend_la_SOURCES = \
 		schedulable_status.cc \
 		scheduler.cc \
 		slice.cc
-		
 
 noinst_HEADERS = \
 		history.hh \