diff -up Arduino-1.8.3/hardware/arduino/avr/platform.txt.avrdude Arduino-1.8.3/hardware/arduino/avr/platform.txt
--- Arduino-1.8.3/hardware/arduino/avr/platform.txt.avrdude	2017-08-14 15:37:03.194927521 -0400
+++ Arduino-1.8.3/hardware/arduino/avr/platform.txt	2017-08-14 15:38:31.878770859 -0400
@@ -18,6 +18,7 @@ compiler.warning_flags.more=-Wall
 compiler.warning_flags.all=-Wall -Wextra
 
 # Default "compiler.path" is correct, change only if you want to override the initial value
+runtime.tools.avr-gcc.path=/usr
 compiler.path={runtime.tools.avr-gcc.path}/bin/
 compiler.c.cmd=avr-gcc
 compiler.c.flags=-c -g -Os {compiler.warning_flags} -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects
@@ -91,9 +92,9 @@ recipe.preproc.macros="{compiler.path}{c
 # AVR Uploader/Programmers tools
 # ------------------------------
 
-tools.avrdude.path={runtime.tools.avrdude.path}
-tools.avrdude.cmd.path={path}/bin/avrdude
-tools.avrdude.config.path={path}/etc/avrdude.conf
+tools.avrdude.path=/
+tools.avrdude.cmd.path={path}usr/bin/avrdude
+tools.avrdude.config.path={path}etc/avrdude/avrdude.conf
 
 tools.avrdude.network_cmd={runtime.tools.arduinoOTA.path}/bin/arduinoOTA