diff --git a/arch/avr/include/avr32/types.h b/arch/avr/include/avr32/types.h
index ec18719c77..ad3be5ba95 100644
--- a/arch/avr/include/avr32/types.h
+++ b/arch/avr/include/avr32/types.h
@@ -79,7 +79,7 @@ typedef int                _wchar_t;
  */
 
 #define unsigned signed
-typedef __SIZE_TYPE__      _ssize_t;
+typedef int                _ssize_t; /* Keep avr32-gcc 4.4.7 happy. */
 #undef unsigned
 typedef __SIZE_TYPE__      _size_t;
 #elif defined(CONFIG_ARCH_SIZET_LONG)
diff --git a/boards/avr/at32uc3/avr32dev1/include/board.h b/boards/avr/at32uc3/avr32dev1/include/board.h
index 89862b3ade..947488cbae 100644
--- a/boards/avr/at32uc3/avr32dev1/include/board.h
+++ b/boards/avr/at32uc3/avr32dev1/include/board.h
@@ -124,7 +124,7 @@
 /* Pin muliplexing selecion *************************************************/
 
 #define PINMUX_USART1_RXD     PINMUX_USART1_RXD_2
-#define PINMUX_USART1_TXD     PINMUX_USART1_TXD_1
+#define PINMUX_USART1_TXD     PINMUX_USART1_TXD_2
 
 /* LED definitions **********************************************************/
 
diff --git a/boards/avr/at32uc3/avr32dev1/scripts/avr32dev1.ld b/boards/avr/at32uc3/avr32dev1/scripts/avr32dev1.ld
index abe2d6c61c..bbf513faa2 100644
--- a/boards/avr/at32uc3/avr32dev1/scripts/avr32dev1.ld
+++ b/boards/avr/at32uc3/avr32dev1/scripts/avr32dev1.ld
@@ -39,7 +39,8 @@ MEMORY
 SECTIONS
 {
     .text : {
-        _stext = ABSOLUTE(.);
+        . = ALIGN(4);
+        _stext = .;
         *(.vectors)
         *(.text .text.*)
         *(.fixup)
@@ -51,27 +52,29 @@ SECTIONS
         *(.got)
         *(.gcc_except_table)
         *(.gnu.linkonce.r.*)
-        _etext = ABSOLUTE(.);
+        . = ALIGN(4);
+        _etext = .;
     } > flash
 
-    _eronly = ABSOLUTE(.);      /* See below                    */
+    _eronly = .;                /* See below                    */
 
-    .data : {
-        _sdata = ABSOLUTE(.);
+    .data : AT(_etext) {
+        . = ALIGN(4);
+        _sdata = .;
         *(.data .data.*)
         *(.gnu.linkonce.d.*)
         CONSTRUCTORS
         . = ALIGN(4);
-        _edata = ABSOLUTE(.);
-    } > intram AT > flash
+        _edata = .;
+    } > intram
 
     .bss : {            /* BSS              */
-        _sbss = ABSOLUTE(.);
+        _sbss = .;
         *(.bss .bss.*)
         *(.gnu.linkonce.b.*)
         *(COMMON)
         . = ALIGN(4);
-        _ebss = ABSOLUTE(.);
+        _ebss = .;
     } > intram
     /* Stabs debugging sections.    */
     .stab 0 : { *(.stab) }
diff --git a/libs/libc/assert/Make.defs b/libs/libc/assert/Make.defs
index 830a50c05f..87017b57c1 100644
--- a/libs/libc/assert/Make.defs
+++ b/libs/libc/assert/Make.defs
@@ -24,8 +24,10 @@ ifeq ($(CONFIG_STACK_CANARIES),y)
 CSRCS += lib_stackchk.c
 endif
 
+ifeq ($(CONFIG_LTO_NONE),n)
 assert/lib_assert.c_CFLAGS += -fno-lto
 assert/lib_stackchk.c_CFLAGS += -fno-lto
+endif
 
 # Add the assert directory to the build