Index: driver/Makefile.am
===================================================================
--- driver/Makefile.am	(revision 0c1b5660b6f5a0957c905780ecc5883a812e52a7)
+++ driver/Makefile.am	(revision 0720749b75e9d25be92e7f3da771c1d96ba17918)
@@ -18,5 +18,5 @@
 
 # applies to both programs
-AM_CXXFLAGS = -Wall -O2 -g -std=c++14 -I${abs_top_srcdir}/src
+AM_CXXFLAGS = @HOST_FLAGS@ -Wall -O2 -g -std=c++14 -I${abs_top_srcdir}/src
 
 # don't install cfa directly