1--- Makefile~ 2012-07-07 12:52:15.000000000 +0300 2+++ Makefile 2012-07-07 12:51:14.000000000 +0300 3@@ -7,7 +7,7 @@ CXX = g++ 4 5 6 # Optimization flags 7-CXXFLAGS = -O2 8+CXXFLAGS ?= -O2 9 10 #CXXFLAGS += -g -Wall 11 #CXXFLAGS += -ansi 12@@ -43,7 +43,7 @@ CXXFLAGS += -pthread 13 14 15 # Linker flags 16-LDFLAGS = 17+LDFLAGS += 18 19 20 # External libraries 21