+env = None
+rc = os.system("clang++ --version >/dev/null 2>/dev/null")
+if rc == 0:
+ print "\nDetected clang++ installed in the system"
+ print "\nSelect compiler:\n 1. g++\n 2. clang++"
+ #option = raw_input("\nInput option [1]: ") or "1"
+ # Read with timeout:
+ print "\nInput option [1]: "
+ option = 1
+ i, o, e = select.select( [sys.stdin], [], [], 60 )
+ if (i): option = sys.stdin.readline().strip()
+ else: print "expired! using default ..."
+ if option == "2":
+ env = Environment(CXX = 'clang++')
+ env.Append (CCFLAGS = '-DIS_CLANG')
+ env.Append (CXXFLAGS = '-Wno-parentheses-equality')
+ else:
+ env = Environment()
+else:
+ env = Environment()
+