Index: src/driver/Makefile.am
===================================================================
--- src/driver/Makefile.am	(revision e4745d7a69e805e1610459cace93880b062586f3)
+++ src/driver/Makefile.am	(revision 58dd019a052f07152d413d2f67f0b5337b50f417)
@@ -16,5 +16,5 @@
 
 # applies to both programs
-AM_CXXFLAGS = -Wall
+AM_CXXFLAGS = -Wall -O2
 
 bin_PROGRAMS = cfa
Index: src/driver/Makefile.in
===================================================================
--- src/driver/Makefile.in	(revision e4745d7a69e805e1610459cace93880b062586f3)
+++ src/driver/Makefile.in	(revision 58dd019a052f07152d413d2f67f0b5337b50f417)
@@ -204,5 +204,5 @@
 
 # applies to both programs
-AM_CXXFLAGS = -Wall
+AM_CXXFLAGS = -Wall -O2
 cfa_SOURCES = cfa.cc