Arduino 1.5.3 SoftwareSeria Example error

Hi

I've used Galileo GEN1 & GEN2 to verify Arduino 1.5.3 SoftwareSeria Example on MAC OS.

I found error as below:

(1)/Users/Mxxxxx/Downloads/Arduino_Galileo 1.5.3.app/Contents/Resources/Java/libraries/SoftwareSerial/arch/x86/SoftwareSerial.cpp: In constructor 'SoftwareSerial::SoftwareSerial(uint8_t, uint8_t, bool)':

(2)/Users/Mxxxxx/Downloads/Arduino_Galileo 1.5.3.app/Contents/Resources/Java/libraries/SoftwareSerial/arch/x86/SoftwareSerial.cpp:18:7: error: 'LINUX_SOFTSERIAL_TTY_OBJ' was not declared in this scope

Could you let me know how to do it?

Thanks.