diff --git a/LUFA/StudioIntegration/lufa_toolchain.xml b/LUFA/StudioIntegration/lufa_toolchain.xml
index 555e34b1f8..4e4b092688 100644
--- a/LUFA/StudioIntegration/lufa_toolchain.xml
+++ b/LUFA/StudioIntegration/lufa_toolchain.xml
@@ -10,38 +10,34 @@
 
 <lufa>
 	<asf>
-		<!-- Sourced from Atmel ASF 3.6.0, required for extensions to pass project generator validation -->
 		<select-by-device id="common.utils.toolchain_config" caption="Toolchain configuration defaults">
 			<module type="build-specific" id="common.utils.toolchain_config#avr" caption="Toolchain configuration defaults for 8-bit AVR">
 				<info type="gui-flag" value="hidden"/>
 				<device-support value="avr"/>
 
-				<toolchain-config name="avrgcc.assembler.general.AssemblerFlags" value="-mrelax" toolchain="avrgcc"/>
-				<toolchain-config name="avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned" value="False" toolchain="avrgcc"/>
-				<toolchain-config name="avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned" value="False" toolchain="avrgcc"/>
+				<toolchain-config name="avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned" value="True" toolchain="avrgcc"/>
+				<toolchain-config name="avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned" value="True" toolchain="avrgcc"/>
 				<toolchain-config name="avrgcc.compiler.optimization.OtherFlags" value="-fdata-sections" toolchain="avrgcc"/>
 				<toolchain-config name="avrgcc.compiler.optimization.PrepareFunctionsForGarbageCollection" value="True" toolchain="avrgcc"/>
 				<toolchain-config name="avrgcc.compiler.warnings.AllWarnings" value="True" toolchain="avrgcc"/>
-				<toolchain-config name="avrgcc.compiler.miscellaneous.OtherFlags" value="-std=gnu99 -Wstrict-prototypes -Wmissing-prototypes -Werror-implicit-function-declaration -Wpointer-arith -mrelax -fno-strict-aliasing" toolchain="avrgcc"/>
+				<toolchain-config name="avrgcc.compiler.miscellaneous.OtherFlags" value="-std=gnu99 -fno-strict-aliasing" toolchain="avrgcc"/>
 				<toolchain-config name="avrgcc.linker.optimization.GarbageCollectUnusedSections" value="True" toolchain="avrgcc"/>
-				<toolchain-config name="avrgcc.linker.optimization.RelaxBranches" value="True" toolchain="avrgcc"/>
 				<toolchain-config name="avrgcc.linker.miscellaneous.LinkerFlags" value="-Wl,--relax" toolchain="avrgcc"/>
 			</module>
 		</select-by-device>
 
-		<!-- Sourced from Atmel ASF 3.6.0, required for extensions to pass project generator validation -->
 		<module type="build-specific" id="common.utils.toolchain_config#uc3" caption="Toolchain configuration defaults for 32-bit AVR">
 			<info type="gui-flag" value="hidden"/>
 			<device-support value="uc3"/>
 
-			<toolchain-config name="avr32gcc.assembler.general.AssemblerFlags" value="-mrelax" toolchain="avr32gcc"/>
+			<toolchain-config name="avrgcc.compiler.general.ChangeDefaultBitFieldUnsigned" value="True" toolchain="avr32gcc"/>
+			<toolchain-config name="avrgcc.compiler.general.ChangeDefaultCharTypeUnsigned" value="True" toolchain="avr32gcc"/>
 			<toolchain-config name="avr32gcc.compiler.optimization.OtherFlags" value="-fdata-sections" toolchain="avr32gcc"/>
 			<toolchain-config name="avr32gcc.compiler.optimization.PrepareFunctionsForGarbageCollection" value="True" toolchain="avr32gcc"/>
 			<toolchain-config name="avr32gcc.compiler.warnings.AllWarnings" value="True" toolchain="avr32gcc"/>
+			<toolchain-config name="avr32gcc.compiler.miscellaneous.OtherFlags" value="-std=gnu99 -fno-strict-aliasing -mno-cond-exec-before-reload" toolchain="avr32gcc"/>
 			<toolchain-config name="avr32gcc.linker.optimization.GarbageCollectUnusedSections" value="True" toolchain="avr32gcc"/>
-			<toolchain-config name="avr32gcc.compiler.miscellaneous.OtherFlags" value="-std=gnu99 -fno-strict-aliasing -Wstrict-prototypes -Wmissing-prototypes -Werror-implicit-function-declaration -Wpointer-arith -mrelax -mno-cond-exec-before-reload -fno-strict-aliasing" toolchain="avr32gcc"/>
-			<toolchain-config name="avr32gcc.preprocessingassembler.general.AssemblerFlags" value="-mrelax" toolchain="avr32gcc"/>
 			<toolchain-config name="avr32gcc.linker.miscellaneous.LinkerFlags" value="-Wl,--relax" toolchain="avr32gcc"/>
 		</module>
 	</asf>
-</lufa>
\ No newline at end of file
+</lufa>