Odd Compilation error - boards.h???

So I was setting up Marlin for my new printer, firmware version Marlin 1.1.0-RC4 (not the latest but I've used it before) and did a compile check. It came up with this error;

Quote

Build options changed, rebuilding all
In file included from sketch/Configuration.h:41:0,
                 from Marlin-RC/Marlin/Marlin.ino:37:
boards.h:94: error: operator '==' has no right operand
 #define MB(board) (MOTHERBOARD==BOARD_##board)
                                              ^
sketch/pins.h:82:7: note: in expansion of macro 'MB'
 #elif MB(ULTIMAKER)
       ^
In file included from sketch/Configuration_adv.h:658:0,
                 from sketch/Configuration.h:941,
                 from Marlin-RC/Marlin/Marlin.ino:37:
Conditionals.h:518: error: operator '&&' has no right operand
   #define HAS_FAN2 (PIN_EXISTS(FAN2) && CONTROLLERFAN_PIN != FAN2_PIN && EXTRUDER_0_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_1_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_2_AUTO_FAN_PIN != FAN2_PIN)
                                                           ^
sketch/Conditionals.h:609:7: note: in expansion of macro 'HAS_FAN2'
   #if HAS_FAN2
       ^
In file included from sketch/Configuration_adv.h:658:0,
                 from sketch/Configuration.h:941,
                 from Marlin-RC/Marlin/Marlin.ino:37:
Conditionals.h:517: error: operator '&&' has no right operand
   #define HAS_FAN1 (PIN_EXISTS(FAN1) && CONTROLLERFAN_PIN != FAN1_PIN && EXTRUDER_0_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_1_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_2_AUTO_FAN_PIN != FAN1_PIN)
                                                           ^
sketch/Conditionals.h:611:9: note: in expansion of macro 'HAS_FAN1'
   #elif HAS_FAN1
         ^
Conditionals.h:517: error: operator '&&' has no right operand
   #define HAS_FAN1 (PIN_EXISTS(FAN1) && CONTROLLERFAN_PIN != FAN1_PIN && EXTRUDER_0_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_1_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_2_AUTO_FAN_PIN != FAN1_PIN)
                                                           ^
sketch/Conditionals.h:623:7: note: in expansion of macro 'HAS_FAN1'
   #if HAS_FAN1
       ^
In file included from sketch/Configuration_adv.h:658:0,
                 from sketch/Configuration.h:941,
                 from Marlin-RC/Marlin/Marlin.ino:37:
Conditionals.h:518: error: operator '&&' has no right operand
   #define HAS_FAN2 (PIN_EXISTS(FAN2) && CONTROLLERFAN_PIN != FAN2_PIN && EXTRUDER_0_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_1_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_2_AUTO_FAN_PIN != FAN2_PIN)
                                                           ^
sketch/Conditionals.h:626:7: note: in expansion of macro 'HAS_FAN2'
   #if HAS_FAN2
       ^
In file included from sketch/Configuration.h:42:0,
                 from Marlin-RC/Marlin/Marlin.ino:37:
macros.h:58: error: operator '&&' has no right operand
 #define PIN_EXISTS(PN) (defined(PN ##_PIN) && PN ##_PIN >= 0)
                                                         ^
sketch/Conditionals.h:511:27: note: in expansion of macro 'PIN_EXISTS'
   #define HAS_AUTO_FAN_0 (PIN_EXISTS(EXTRUDER_0_AUTO_FAN))
                           ^
sketch/Conditionals.h:515:25: note: in expansion of macro 'HAS_AUTO_FAN_0'
   #define HAS_AUTO_FAN (HAS_AUTO_FAN_0 || HAS_AUTO_FAN_1 || HAS_AUTO_FAN_2 || HAS_AUTO_FAN_3)
                         ^
sketch/SanityCheck.h:337:5: note: in expansion of macro 'HAS_AUTO_FAN'
 #if HAS_AUTO_FAN
     ^
In file included from sketch/Configuration_adv.h:659:0,
                 from sketch/Configuration.h:941,
                 from Marlin-RC/Marlin/Marlin.ino:37:
SanityCheck.h:351: error: operator '&&' has no right operand
 #if HAS_FAN0 && CONTROLLERFAN_PIN == FAN_PIN
                                   ^
In file included from sketch/Configuration.h:42:0,
                 from Marlin-RC/Marlin/Marlin.ino:37:
macros.h:58: error: operator '&&' has no right operand
 #define PIN_EXISTS(PN) (defined(PN ##_PIN) && PN ##_PIN >= 0)
                                                         ^
sketch/Conditionals.h:519:30: note: in expansion of macro 'PIN_EXISTS'
   #define HAS_CONTROLLERFAN (PIN_EXISTS(CONTROLLERFAN))
                              ^
sketch/SanityCheck.h:355:5: note: in expansion of macro 'HAS_CONTROLLERFAN'
 #if HAS_CONTROLLERFAN
     ^
exit status 1
operator '==' has no right operand

It keeps making reference to the boards.h file, which I haven't touched except to choose my board (GT2560, recognised as board 7: Ultimaker)