--- /dev/null
+diff -Naurp gcc/config/avr/avr-devices.c gcc/config/avr/avr-devices.c
+--- gcc/config/avr/avr-devices.c 2012-01-18 19:44:57.000000000 +0530
++++ gcc/config/avr/avr-devices.c 2012-01-18 18:48:36.000000000 +0530
+@@ -304,6 +304,7 @@ const struct mcu_type_s avr_mcu_types[]
+ { "atxmega128d4", ARCH_AVRXMEGA6, "__AVR_ATxmega128D4__", 0, 0x2000, "x128d4" },
+ { "atxmega192a3", ARCH_AVRXMEGA6, "__AVR_ATxmega192A3__", 0, 0x2000, "x192a3" },
+ { "atxmega192a3u",ARCH_AVRXMEGA6, "__AVR_ATxmega192A3U__", 0, 0x2000, "x192a3u"},
++ { "atxmega192c3", ARCH_AVRXMEGA6, "__AVR_ATxmega192C3__", 0, 0x2000, "x192c3" },
+ { "atxmega192d3", ARCH_AVRXMEGA6, "__AVR_ATxmega192D3__", 0, 0x2000, "x192d3" },
+ { "atxmega256a3", ARCH_AVRXMEGA6, "__AVR_ATxmega256A3__", 0, 0x2000, "x256a3" },
+ { "atxmega256a3u",ARCH_AVRXMEGA6, "__AVR_ATxmega256A3U__", 0, 0x2000, "x256a3u"},
+diff -Naurp gcc/config/avr/t-avr gcc/config/avr/t-avr
+--- gcc/config/avr/t-avr 2012-01-18 19:44:57.000000000 +0530
++++ gcc/config/avr/t-avr 2012-01-18 18:50:16.000000000 +0530
+@@ -311,6 +311,7 @@ MULTILIB_MATCHES = \
+ mmcu?avrxmega6=mmcu?atxmega128d4 \
+ mmcu?avrxmega6=mmcu?atxmega192a3 \
+ mmcu?avrxmega6=mmcu?atxmega192a3u \
++ mmcu?avrxmega6=mmcu?atxmega192c3 \
+ mmcu?avrxmega6=mmcu?atxmega192d3 \
+ mmcu?avrxmega6=mmcu?atxmega256a3 \
+ mmcu?avrxmega6=mmcu?atxmega256a3u \