diff -Naurp gcc/config/avr/avr-devices.c gcc/config/avr/avr-devices.c
--- gcc/config/avr/avr-devices.c	2011-08-12 11:50:23.000000000 +0300
+++ gcc/config/avr/avr-devices.c	2011-08-12 11:50:43.000000000 +0300
@@ -149,6 +149,7 @@ const struct mcu_type_s avr_mcu_types[] 
   { "atmega165",            ARCH_AVR5, "__AVR_ATmega165__",         0, 0x0100, "m165" },
   { "atmega165a",           ARCH_AVR5, "__AVR_ATmega165A__",        0, 0x0100, "m165a" },
   { "atmega165p",           ARCH_AVR5, "__AVR_ATmega165P__",        0, 0x0100, "m165p" },
+  { "atmega165pa",          ARCH_AVR5, "__AVR_ATmega165PA__",       0, 0x0100, "m165pa" },
   { "atmega168",            ARCH_AVR5, "__AVR_ATmega168__",         0, 0x0100, "m168" },
   { "atmega168a",           ARCH_AVR5, "__AVR_ATmega168A__",        0, 0x0100, "m168a" },
   { "atmega168p",           ARCH_AVR5, "__AVR_ATmega168P__",        0, 0x0100, "m168p" },
diff -Naurp gcc/config/avr/t-avr gcc/config/avr/t-avr
--- gcc/config/avr/t-avr	2011-08-12 11:50:23.000000000 +0300
+++ gcc/config/avr/t-avr	2011-08-12 11:50:43.000000000 +0300
@@ -180,6 +180,7 @@ MULTILIB_MATCHES = \
 	mmcu?avr5=mmcu?atmega165 \
 	mmcu?avr5=mmcu?atmega165a \
 	mmcu?avr5=mmcu?atmega165p \
+	mmcu?avr5=mmcu?atmega165pa \
 	mmcu?avr5=mmcu?atmega168 \
 	mmcu?avr5=mmcu?atmega168a \
 	mmcu?avr5=mmcu?atmega168p \