diff -Naurp gcc/config/avr/avr-devices.c gcc/config/avr/avr-devices.c
--- gcc/config/avr/avr-devices.c	2012-02-10 20:23:45.000000000 +0530
+++ gcc/config/avr/avr-devices.c	2012-02-10 20:24:34.000000000 +0530
@@ -267,6 +267,7 @@ const struct mcu_type_s avr_mcu_types[] 
     /* Xmega, <= 8K FLASH.  */
     /* Xmega, > 8K, <= 64K FLASH, <= 64K RAM.  */
   { "avrxmega2",    ARCH_AVRXMEGA2, NULL,                           0, 0x2000, "x32a4" },
+  { "atmxt112sl",   ARCH_AVRXMEGA2, "__AVR_ATMXT112SL__",           0, 0x2000, "mxt112sl"},
   { "atmxt224",     ARCH_AVRXMEGA2, "__AVR_ATMXT224__",             0, 0x2000, "mxt224"},
   { "atmxt224e",    ARCH_AVRXMEGA2, "__AVR_ATMXT224E__",            0, 0x2000, "mxt224e"},
   { "atmxt336s",    ARCH_AVRXMEGA2, "__AVR_ATMXT336S__",            0, 0x2000, "mxt336s"},
diff -Naurp gcc/config/avr/t-avr gcc/config/avr/t-avr
--- gcc/config/avr/t-avr	2012-02-10 20:23:45.000000000 +0530
+++ gcc/config/avr/t-avr	2012-02-10 20:24:34.000000000 +0530
@@ -281,6 +281,7 @@ MULTILIB_MATCHES = \
 	mmcu?avr6=mmcu?atmega256rfr2 \
  	mmcu?avr6=mmcu?atmega2560 \
 	mmcu?avr6=mmcu?atmega2561 \
+	mmcu?avrxmega2=mmcu?atmxt112sl \
 	mmcu?avrxmega2=mmcu?atmxt224 \
 	mmcu?avrxmega2=mmcu?atmxt224e \
 	mmcu?avrxmega2=mmcu?atmxt336s \