Update avr-gcc to 4.9.2-arduino4

Author: cmaglie

build/build.xml

@@ -91,7 +91,7 @@
 
   <property name="ARDUINO-BUILDER-VERSION" value="1.3.18" />
   <property name="LIBLISTSERIAL-VERSION" value="1.1.0" />
-  <property name="AVRGCC-VERSION" value="4.9.2-arduino2" />
+  <property name="AVRGCC-VERSION" value="4.9.2-arduino4" />
   <property name="AVRDUDE-VERSION" value="6.3-arduino2" />
 
   <!-- Libraries required for running arduino -->
@@ -1060,10 +1060,10 @@
 
   <target name="windows-build-avr-toolchain">
     <antcall target="avr-toolchain-bundle">
-      <param name="unpack_target" value="untar"/>
-      <param name="gcc_archive_file" value="avr-gcc-${AVRGCC-VERSION}-i686-mingw32.tar.bz2"/>
+      <param name="unpack_target" value="unzip"/>
+      <param name="gcc_archive_file" value="avr-gcc-${AVRGCC-VERSION}-i686-mingw32.zip"/>
       <param name="gcc_version" value="${AVRGCC-VERSION}"/>
-      <param name="avrdude_archive_file" value="avrdude-${AVRDUDE-VERSION}-i686-w64-mingw32.tar.bz2"/>
+      <param name="avrdude_archive_file" value="avrdude-${AVRDUDE-VERSION}-i686-w64-mingw32.zip"/>
       <param name="avrdude_version" value="${AVRDUDE-VERSION}"/>
     </antcall>
 

build/linux/avr-gcc-4.9.2-arduino2-armhf-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+3f8207df94b899ab1bc07e93d0e226113554466b

build/linux/avr-gcc-4.9.2-arduino2-i686-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+4b787466bd6ebf6ed9d54f58b984de51dd05f014

build/linux/avr-gcc-4.9.2-arduino2-x86_64-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+cdf1df744b67f475ea625906690b3a32614c8534

build/linux/avr-gcc-4.9.2-arduino4-armhf-pc-linux-gnu.tar.bz2.sha

@@ -0,0 +1 @@
+b065f135e6acaf88fba4591151dd3586f55583df